Author: theieltsbridge

A Wonder Plant

The wonder plant with an uncertain future: more than a billion people rely on bamboo for either their shelter or income, while many endangered species depend on it for their survival. Despite its apparent abundance, a new report says that species of bamboo may be under serious threat.

A Every year, during the rainy season, the mountain gorillas of Central Africa migrate to the foothills and lower slopes of the Virunga Mountains to graze on bamboo. For the 650 or so that remain in the wild, it’s a vital food source. Although there are at almost 150 types of plant, as well as various insects and other invertebrates, bamboo accounts for up t0 90 percent of their diet at this time of year. Without it, says Ian Redmond, chairman of the Ape Alliance, their chances of survival would be reduced significantly. Gorillas aren’t the only locals keen on bamboo. For the people who live close to the Virungas, it’s a valuable and versatile raw material used for building houses and making household items such as mats and baskets. But in the past 100 years or so, resources have come under increasing pressure as populations have exploded and large areas of bamboo forest have been cleared to make way for farms and commercial plantations.

B Sadly, this isn’t an isolated story. All over the world, the ranges of many bamboo species appear to be shrinking, endangering the people and animals that depend upon them. But despite bamboo’s importance, we know surprisingly little about it. A recent report published by the UN Environment Programme (UNEP) and the Inter-national Network for Bamboo and Rattan (INBAR) has revealed just how profound is our ignorance of global bamboo resources, particularly in relation to conservation. There are almost 1,600 recognized species of bamboo, but the report concentrated on the 1,200 or so woody varieties distinguished by the strong stems, or culms, that most people associate with this versatile plant. Of these, only 38 ‘priority species’ identified for their commercial value have been the subject of any real scientific research, and this has focused mostly on matters relating to their viability as a commodity. This problem isn’t confined to bamboo. Compared to the work carried out on animals, the science of assessing the conservation status of plants is still in its infancy. “People have only started looking hard at this during the past 10-15 years, and only now are they getting a handle on how to go about it systematically,” says Dr. Valerie Kapos, one of the report’s authors and a senior adviser in forest ecology and conservation to the UNEP.

C Bamboo is a type of grass. It comes in a wide variety of forms, ranging in height from 30 centimeters to more than 40 meters. It is also the world’s fastest-growing woody plant; some species can grow more than a meter in a day. Bamboo’s ecological role extends beyond providing food and habitat for animals. Bamboo tends to grow in stands made up of groups of individual plants that grow from root systems known as rhizomes. Its extensive rhizome systems, which tie in the top layers of the soil, are crucial in preventing soil erosion. And there is growing evidence that bamboo plays an important part in determining forest structure and dynamics. “Bamboo’s pattern of mass flowering and mass death leaves behind large areas of dry biomass that attract wildfire,” says Kapos.“ When these burn, they create patches of open ground within the forest far bigger than would be left by a fallen tree.” Patchiness helps to preserve diversity because certain plant species do better during the early stages of regeneration when there are gaps in the canopy.

D However, bamboo’s most immediate significance lies in its economic value. Modern processing techniques mean that it can be used in a variety of ways, for example, as flooring and laminates. One of the fastest growing bamboo products is paper-25 percent of paper produced in India is made from bamboo fiber, and in Brazil, 100,000 hectares of bamboo are grown for its production. Of course, bamboo’s main function has always been in domestic applications, and as a locally traded commodity it’s worth about $4.5billion annually. Because of its versatility, flexibility and strength (its tensile strength compares to that of some steel), it has traditionally been used in construction. Today, more than one billion people worldwide live in bamboo houses. Bamboo is often the only readily available raw material for people in many developing countries, says Chris Stapleton, a research associate at the Royal Botanic Gardens. “Bamboo can be harvested from forest areas or grown quickly elsewhere, and then converted simply without expensive machinery or facilities,” he says. “In this way, it contributes substantially to poverty alleviation and wealth creation.”

E Given bamboo’s value in economic and ecological terms, the picture painted by the UNEP report is all the more worrying. But keen horticulturists will spot an apparent contradiction here. Those who’ve followed the recent vogue for cultivating exotic species in their gardens will point out that if it isn’t kept in check, bamboo can cause real problems. “In a lot of places, the people who live with bamboo don’t perceive it as being endangered in any way,” says Kapos. “In fact, a lot of bamboo species are actually very invasive if they’ve been introduced.” So why are so many species endangered? There are two separate issues here, says Ray Townsend, vice president of the British Bamboo Society and arboretum manager at the Royal Botanic Gardens. “Some plants are threatened because they can’t survive in the habitat-they aren’t strong enough or there aren’t enough of them, perhaps. But bamboo can take care of itself-it is strong enough to survive if left alone. What is under threat is its habitat.” It is the physical disturbance that is the threat to bamboo, says Kapos. “When forest goes, it is converted into something else: there isn’t anywhere for forest plants such as bamboo to grow if you create a cattle pasture.”

F Around the world, bamboo species are routinely protected as part of forest eco-systems in national parks and reserves, but there is next to nothing that protects bamboo in the wild for its own sake. However, some small steps are being taken to address this situation. The UNEP-INBAR report will help conservationists to establish effective measures aimed at protecting valuable wild bamboo species. Townsend, too, sees the UNEP report as an important step forward in promoting the cause of bamboo conservation. “Until now, bamboo has been perceived as a second-class plant. When you talk about places such as the Amazon, everyone always thinks about the hardwoods. Of course these are significant, but there is a tendency to overlook the plants they are associated with, which are often bamboo species. In many ways, it is the most important plant known to man. I can’t think of another plant that is used so much and is so commercially important in so many countries.” He believes that the most important first step is to get scientists into the field. “We need to go out there, look at these plants and see how they survive and then use that information to conserve them for the future.”

Questions 1-7
Reading Passage I has six sections A-F.

Which section contains the following information ?

1 Comparison of bamboo with other plant species
2 Commercial products of bamboo
3 Limited extent of existing research
4 A human development that destroyed large areas of bamboo
5 How bamboos are put to a variety of uses
6 An explanation of how bamboo can help the survival of a range of plants
7 The methods used to study bamboo

Questions 8-11

Use the information in the passage to match the people (listed A-D) with opinions or deeds below.

A Ian Redmond
B Valerie Kapos
C Ray Townsend
D Chris Stapleton

8 Destroying bamboo jeopardizes to wildlife.
9 People have very confined knowledge of bamboo.
10 Some people do not think that bamboo is endangered.
11 Bamboo has loads of commercial potentials.

Questions 12-13
Answer the questions below using NO MORE THAN TWO WORDS from the passage for each answer.

12. What environmental problem does the unique root system of bamboo prevent?
13. Which bamboo product is experiencing market expansion?

Children’s Literature

Stories and poems aimed at children have an exceedingly long history: lullabies, for example, were sung in Roman times, and a few nursery games and rhymes are almost as ancient. Yet so far as written-down literature is concerned, while there were stories in print before 1700 that children often seized on when they had the chance, such as translations of Aesop’s fables, fairy-stories and popular ballads and romances, these were not aimed at young people in particular. Since the only genuinely child-oriented literature at this time would have been a few instructional works to help with reading and general knowledge, plus the odd Puritanical tract as an aid to morality, the only course for keen child readers was to read adult literature. This still occurs today, especially with adult thrillers or romances that include more exciting, graphic detail than is normally found in the literature for younger readers.

By the middle of the 18th century there were enough eager child readers, and enough parents glad to cater to this interest, for publishers to specialize in children’s books whose first aim was pleasure rather than education or morality. In Britain, a London merchant named Thomas Boreham produced Cajanus, The Swedish Giant in 1742, while the more famous John Newbery published A Little Pretty Pocket Book in 1744. Its contents – rhymes, stories, children’s games plus a free gift (‘A ball and a pincushion’)——in many ways anticipated the similar lucky-dip contents of children’s annuals this century. It is a tribute to Newbery’s flair that he hit upon a winning formula quite so quickly, to be pirated almost immediately in America.

Such pleasing levity was not to last. Influenced by Rousseau, whose Emile(1762) decreed that all books for children save Robinson Crusoe were a dangerous diversion, contemporary critics saw to it that children’s literature should be instructive and uplifting. Prominent among such voices was Mrs. Sarah Trimmer, whose magazine The Guardian of Education (1802) carried the first regular reviews of children’s books. It was she who condemned fairy-tales for their violence and general absurdity; her own stories, Fabulous Histories (1786) described talking animals who were always models of sense and decorum.

So the moral story for children was always threatened from within, given the way children have of drawing out entertainment from the sternest moralist. But the greatest blow to the improving children’s book was to come from an unlikely source indeed: early 19th century interest in folklore. Both nursery rhymes, selected by James Orchard Halliwell for a folklore society in 1842, and collection of fairy-stories by the scholarly Grimm brothers, swiftly translated into English in 1823,soon rocket to popularity with the young, quickly leading to new editions, each one more child-centered than the last. From now on younger children could expect stories written for their particular interest and with the needs of their own limited experience of life kept well to the fore.

What eventually determined the reading of older children was often not the availability of special children’s literature as such but access to books that contained characters, such as young people or animals, with whom they could more easily empathize, or action, such as exploring or fighting, that made few demands on adult maturity or understanding.

The final apotheosis of literary childhood as something to be protected from unpleasant reality came with the arrival in the late 1930s of child-centered best-sellers intend on entertainment at its most escapist. In Britain novelist such as Enid Blyton and Richmal Crompton described children who were always free to have the most unlikely adventures, secure in the knowledge that nothing bad could ever happen to them in the end. The fact that war broke out again during her books’ greatest popularity fails to register at all in the self-enclosed world inhabited by Enid Blyton’s young characters. Reaction against such dream-worlds was inevitable after World War II, coinciding with the growth of paperback sales, children’s libraries and a new spirit of moral and social concern. Urged on by committed publishers and progressive librarians, writers slowly began to explore new areas of interest while also shifting the settings of their plots from the middle-class world to which their chiefly adult patrons had always previously belonged.

Critical emphasis, during this development, has been divided. For some the most important task was to rid children’s books of the social prejudice and exclusiveness no longer found acceptable. Others concentrated more on the positive achievements of contemporary children’s literature. That writers of these works are now often recommended to the attentions of adult as well as child readers echoes the 19th-century belief that children’s literature can be shared by the generations, rather than being a defensive barrier between childhood and the necessary growth towards adult understanding.

Questions 14-18

Complete the table below. Choose NO MORE THAN TWO WORDS from the passage.

Date	Features	Aim	Example
Before 1700	not aimed at young children	education and morality	puritanical tract
By the middle of 18th century	collection of (14)……………..and games	read for pleasure	a little pretty pocket book (exported to (15)………..)
Early 19th century	growing interest in (16)…………….	to be more children centered	nursery rhymes and (17)……………
Late 1930s	stories of harm free (18)…………..	entertainment	Enid Blyton and Richarnal Crompton’s novels

Questions 19-21
Look at the following people and the list of statements below.
Match each person with the correct statement.

List of statements
A Wrote criticisms of children’s literature
B Used animals to demonstrate the absurdity of fairy tales
C Was not a writer originally
D Translated a book into English
E Didn’t write in the English language

19 Thomas Boreham
20 Mrs. Sarah trimmer
21 Grimm Brothers

Questions 22-26
Do the following statements agree with the information given in Reading Passage 2?

TRUE                            if the statement agrees with the information
FALSE                          if the statement contradicts the information
NOT GIVEN               if there is no information on this

22 Children didn’t start to read books until 1700.
23 Sarah Trimmer believed that children’s books should set good examples.
24 Parents were concerned about the violence in children’s books.
25 An interest in the folklore changed the direction of the development of children’s books.
26 Today children’s book writers believe their works should appeal to both children and adults.

Talc Power

Peter Rrigg discovers how talc from Luzenac’s Trimouns in France find its way into food and agricultural products—from chewing gum to olive oil.

High in the French Pyrenees, some 1,700m above see level, lies Trimouns, a huge deposit of hydrated magnesium silicate – talc to you and me. Talc from Trimouns, and from ten other Luzenac mines across the globe, is used in the manufacture of a vast array of everyday products extending from paper, paint and plaster to cosmetics, plastics and car tyres. And of course there is always talc’s best known end use: talcum powder for babies’ bottoms. But the true versatility of this remarkable mineral is nowhere better displayed than in its sometimes surprising use in certain niche markets in the food and agriculture industries.

Take, for example, the chewing gum business. Every year, Talc de Luzenac France—which owns and operates the Trimouns mine and is a member of the international Luzenac Group (art of Rio Tinto minerals)—supplies about 6,000 tones of talc to chewing gum manufacturers in Europe. “We’ve been selling to this sector of the market since the 1960s,”says Laurent Fournier, sales manager in Luzenac’s Specialties business unit in Toulouse. “Admittedly, in terms of our total annual sales of talc, the amount we supply to chewing gum manufacturers is relatively small, but we see it as a valuable niche market: one where customers place a premium on securing supplies from a reliable, high quality source. Because of this, long term allegiance to a proven suppler is very much a feature of this sector of the talc market.” Switching sources—in the way that you might choose to buy, say, paperclips from Supplier A rather than from Supplier B—is not a easy option for chewing gum manufacturers,” Fournier says. “The cost of reformulating is high, so when customers are using a talc grade that works, even if it’s expensive, they are understandably reluctant to switch.”

But how is talc actually used in the manufacture of chewing gum? PatrickDelord, an engineer with a degree in agronomics, who has been with Luzenac for 22 years and is now senior market development manager, Agriculture and Food, in Europe, explains that chewing gums has four main components. “The most important of them is the gum base,” he says. “It’s the gum base that puts the chew into chewing gum. It binds all the ingredients together, creating a soft, smooth texture. To this the manufacturer then adds sweeteners, softeners and flavourings. Our talc is used as a filler in the gum base. The amount varies between, say, ten and 35 per cent, depending on the type of gum. Fruit flavoured chewing gum, for example, is slightly acidic and would react with the calcium carbonate that the manufacturer might otherwise use as a filler. Talc, on the other hand, makes an ideal filler because it’s non-reactive chemically. In the factory, talc is also used to dust the gum base pellets and to stop the chewing gum sticking during the lamination and packing process,” Delord adds.

The chewing gum business is, however, just one example of talc’s use in the food sector. For the past 20 years or so, olive oil processors in Spain have been taking advantage of talc’s unique characteristics to help them boost the amount of oil they extract from crushed olives. According to Patrick Delord, talc is especially useful for treating what he calls “difficult” olives. After the olives are harvested-preferably early in the morning because their taste is better if they are gathered in the cool of the day – they are taken to the processing plant. There they are crushed and then stirred for 30-45 minutes. In the old days, the resulting paste was passed through an olive press but nowadays it’s more common to add water and centrifuge the mixture to separate the water and oil from the solid matter. The oil and water are then allowed to settle so that the olive oil layer can be decanted oft and bottled. “Difficult” olives are those that are more reluctant than the norm to yield up their full oil content. This may be attributable to the particular species of olive, or to its water content and the time of year the olives are collected—at the beginning and the end of the season their water content is often either too high or too low. These olives are easy to recognize because they produce a lot of extra foam during the stirring process, a consequence of an excess of a fine solid that acts as anatural emulsifier. The oil in this emulsion is lost when the water is disposed of. Not only that, if the waste water is disposed of directly into local fields—often the case in many smaller processing operations—the emulsified oil may take some time to biodegrade and so be harmful to the environment.

“If you add between a half and two percent of talc by weight during the stirring process, it absorbs the natural emulsifier in the olives and so boosts the amount of oil you can extract,” says Delord. “In addition, talc’s flat, ‘platy’ structure helps increase the size of the oil droplets liberated during stirring, which again improves the yield. However, because talc is chemically inert, it doesn’t affect the colour, taste, appearance or composition of the resulting olive oil.”

If the use of talc in olive oil processing and in chewing gum is long established, new applications in the food and agriculture industries are also constantly being sought by Luzenac. One such promising new market is fruit crop protection, being pioneered in the US. Just like people, fruit can get sunburned. In fact, in very sunny regions up to 45 percent of atypical crop can be affected by heat stress and sunburn. However, in the case of fruit, it’s not so much the ultra violet rays which harm the crop as the high surface temperature that the sun’s rays create.

To combat this, farmers normally use either chemicals or spray a continuous fine canopy of mist above the fruit trees or bushes. The trouble is, this uses a lot of water—normally a precious commodity in hot, sunny areas—and it is therefore expensive. What’s more, the ground can quickly become waterlogged.” So our idea was to coat the fruit with talc to protect it from the sun,” says Greg Hunter, a marketing specialist who has been with Luzenac for ten years. “But to do this, several technical challenges had first to be overcome. Talc is very hydrophobic: it doesn’t like water. So in order to have a viable product we needed a wettable powder—something that would go readily into suspension so that it could be sprayed onto the fruit. It also had to break the surface tension of the cutin (the natural waxy, waterproof layer on the fruit) and of course it had to wash off easily when the fruit was harvested. No-one’s going to want an apple that’s covered in talc.”

Initial trials in the state of Washington in 2003 showed that when the product was sprayed onto Granny Smith apples, it reduced their surface temperature and lowered the incidence of sunburn by up to 60 per cent. Today the new product, known as Invelop Maximum SPF, is in its second commercial year on the US market. Apple growers are the primary target although Hunter believes grape growers represent another sector with long term potential. He is also hopeful of extending sales to overseas markets such as Australia, South America and southern Europe.

Questions 27-32
Use the information in the passage to match each use of talc power with correct application from A, B or C.

A Chewing gum manufacture
B Olive oil extraction
C Fruit crop protection

27 Talc is used to prevent foaming.
28 Talc is used to prevent stickiness.
29 Talc is used to boost production.
30 Talc is used as a filler to provide a base.
31 Talc is used to prevent sunburn.
32 Talc is used to help increase the size of the product.

Questions 33-38
Complete the following summary below using NO MORE THAN TWO WORDS from the Reading Passage.

The use of talc powder in the olive oil industry in Spain has been around for (33)……………………………years. It is extremely useful in dealing with “difficult” olives which often produce a lot of (34)……………………………..due to the high content of solid matter.

The traditional method of oil extraction used in some smaller plants often produces (35)………………………….., which contains emulsified oil, and if it is directly disposed of, it may be (36)………………………..to environment, because it can­not (37)…………………………….But adding talc powder can absorb the emulsifier and increase the production, because the size of oil (38)……………………….grows.

Questions 39-40
Answer the questions below using NO MORE THAN THREE WORDS from the passage for each answer.

39 What are the last two stages of chewing gum manufacturing process?
40 Which group of farmers does Invelop intend to target next?

The Mozart Effect

A Music has been used for centuries to heal the body. In the Ebers Papyrus (one of the earliest medical documents, circa 1550 BC), it was recorded that physicians chanted to heal the sick (Castleman, 1994). In various cul­tures, we have observed singing as part of healing rituals. In the world of Western medicine, however, using music in medicine lost popularity until the introduction of the radio. Researchers then started to notice that lis­tening to music could have significant physical effects. Therapists noticed music could help calm anxiety, and researchers saw that listening to music, could cause a drop in blood pressure. In addition to these two areas, music has been used with cancer chemotherapy to reduce nausea, during surgery to reduce stress hormone production, during childbirth, and in stroke re­covery (Castleman, 1994 and Westley, 1998). It has been shown to decrease pain as well as enhance the effectiveness of the immune system. In Japan, compilations of music are used as medication of sorts. For example, if you want to cure a headache or migraine, the album suggested is Mendelssohn’s “Spring Song”, Dvorak’s “Humoresque”, or part of George Gershwin’s “An American in Paris” (Campbell, 1998). Music is also being used to assist in learning, in a phenomenon called the Mozart Effect.

B Frances H. Rauscher, PhD, first demonstrated the correlation between mu­sic and learning in an experiment in 1993. His experiment indicated that a 10-minute dose of Mozart could temporarily boost intelligence. Groups of students were given intelligence tests after listening to silence, relaxation tapes, or Mozart’s “Sonata for Two Pianos in D Major” for a short time. He found that after silence, the average IQ score was 110, and after the relax­ation tapes, the score rose a point. After listening to Mozart’s music, how­ever, the score jumped to 119 (Westley, 1998). Even students who did not like the music still had an increased score in the IQ test. Rauscher hy­pothesised that “listening to complex, non-repetitive music, like Mozart’s, may stimulate neural pathways that are important in thinking” (Castleman, 1994).

C The same experiment was repeated on rats by Rauscher and Hong Hua Li from Stanford. Rats also demonstrated enhancement in their intelligence performance. These new studies indicate that rats that were exposed to Mozart’s showed “increased gene expression of BDNF (a neural growth factor), CREB (a learning and memory compound), and Synapsin I (a synap­tic growth protein)” in the brain’s hippocampus, compared with rats in the control group, which heard only white noise (e.g. the whooshing sound of a V radio tuned between stations).

D How exactly does the Mozart Effect work? Researchers are still trying to determine the actual mechanisms for the formation of these enhanced learning pathways. Neuroscientists suspect that music can actually help build and strengthen connections between neurons in the cerebral cortex in a process similar to what occurs in brain development despite its type.

When a baby is born, certain connections have already been made – like connections for heartbeat and breathing. As new information is learned and motor skills develop, new neural connections are formed. Neurons that are not used will eventually die while those used repeatedly will form strong connections. Although a large number of these neural connections require experience, they must also occur within a certain time frame. For example, a child born with cataracts cannot develop connections within the visual cortex. If the cataracts are removed by surgery right away, the child’s vi­sion develops normally. However, after the age of 2, if the cataracts are re­moved, the child will remain blind because those pathways cannot establish themselves.

E Music seems to work in the same way. In October of 1997, researchers at the University of Konstanz in Germany found that music actually rewires neural circuits (Begley, 1996). Although some of these circuits are formed for physical skills needed to play an instrument, just listening to music strengthens connections used in higher-order thinking. Listening to music can then be thought of as “exercise” for the brain, improving concentration and enhancing intuition.

F If you’re a little sceptical about the claims made by supporters of the Mozart Effect, you’re not alone. Many people accredit the advanced learning of some children who take music lessons to other personality traits, such as motivation and persistence, which are required in all types of learning. There have also been claims of that influencing the results of some experiments.

G Furthermore, many people are critical of the role the media had in turning an isolated study into a trend for parents and music educators. After the Mozart Effect was published to the public, the sales of Mozart CDs stayed on the top of the hit list for three weeks. In an article by Michael Linton, he wrote that the research that began this phenomenon (the study by re­searchers at the University of California, Irvine) showed only a temporary boost in IQ, which was not significant enough to even last throughout the course of the experiment. Using music to influence intelligence was used in Confucian civilisation and Plato alluded to Pythagorean music when he de- jj scribed its ideal state in The Republic. In both of these examples, music did not cause any overwhelming changes, and the theory eventually died out. Linton also asks, “If Mozart’s music were able to improve health, why was Mozart himself so frequently sick? If listening to Mozart’s music increases intelligence and encourages spirituality, why aren’t the world’s smartest and most spiritual people Mozart specialists?” Linton raises an interesting point, if the Mozart Effect causes such significant changes, why isn’t there more documented evidence?

H The “trendiness’’ of the Mozart Effect may have died out somewhat, but there are still strong supporters (and opponents) of the claims made in 1993. Since that initial experiment, there has not been a surge of support­ing evidence. However, many parents, after playing classical music while pregnant or when their children are young, will swear by the Mozart Effect. A classmate of mine once told me that listening to classical music while studying will help with memorisation. If we approach this controversy from a scientific aspect, although there has been some evidence that music does increase brain activity, actual improvements in learning and memory have not been adequately demonstrated.

Questions 1-5
Reading Passage 1 has eight paragraphs A-H.

Which paragraph contains the following information?

1 A description of how music affects the brain development of infants
2 Public’s first reaction to the discovery of the Mozart Effect
3 The description of Rauscher’s original experiment
4 The description of using music for healing in other countries
5 Other qualities needed in all learning

Questions 6-8
Complete the summary below. Choose NO MORE THAN ONE WORD from the passage for each answer.

During the experiment conducted by Frances Rauscher, subjects were exposed to the music for a (6)………………………. period of time before they were tested. And Rauscher believes the enhancement in their performance is related to the (7)………………………….nature of Mozart’s music. Later, a similar experiment was also repeated on (8)………………………..

Questions 9-13
Do the following statements agree with the information given in Reading Passage 1?

TRUE                          if the statement agrees with the information
FALSE                        if the statement contradicts the information
NOT GIVEN            if there is no information on this

9 All kinds of music can enhance one’s brain performance to somewhat extent.
10 There is no neural connection made when a baby is born.
11 There are very few who question the Mozart Effect.
12 Michael Linton conducted extensive research on Mozart’s life.
13 There is not enough evidence in support of the Mozart Effect today.

The Ant and the Mandarin

In 1476, the farmers of Berne in Switzerland decided there was only one way to rid their fields of the cutworms attacking their crops. They took the pests to court. The worms were tried, found guilty and excommunicated by the arch­bishop. In China, farmers had a more practical approach to pest control. Rather than relying on divine intervention, they put their faith in frogs, ducks and ants. Frogs and ducks were encouraged to snap up the pests in the paddies and the occasional plague of locusts. But the notion of biological control began with an ant. More specifically, it started with the predatory yellow citrus ant Oeco-phylla smaragdina, which has been polishing off pests in the orange groves of southern China for at least 1,700 years. The yellow citrus ant is a type of weaver ant, which binds leaves and twigs with silk to form a neat, tent-like nest. In the beginning, farmers made do with the odd ants’ nests here and there. But it wasn’t long before growing demand led to the development of a thriving trade in nests and a new type of agriculture – ant farming.

For an insect that bites, the yellow citrus ant is remarkably popular. Even by ant standards, Oecophylla smaragdina is a fearsome predator. It’s big, runs fast and has a powerful nip – painful to humans but lethal to many of the insects that plague the orange groves of Guangdong and Guangxi in southern China. And for at least 17 centuries, Chinese orange growers have harnessed these six-legged killing machines to keep their fruit groves healthy and productive.

Citrus fruits evolved in the Far East and the Chinese discovered the delights of their flesh early on. As the ancestral home of oranges, lemons and pomelos, China also has the greatest diversity of citrus pests. And the trees that produce the sweetest fruits, the mandarins – or kan – attract a host of plant-eating in­sects, from black ants and sap-sucking mealy bugs to leaf-devouring caterpil­lars. With so many enemies, fruit growers clearly had to have some way of pro­tecting their orchards.

The West did not discover the Chinese orange growers’ secret weapon until 1 the early 20th century. At the time, Florida was suffering an epidemic of citrus canker and in 1915 Walter Swingle, a plant physiologist working for the US f Department of Agriculture, was sent to China in search of varieties of orange that were resistant to the disease. Swingle spent some time studying the citrus orchards around Guangzhou, and there he came across the story of the culti­vated ant. These ants, he was told, were “grown” by the people of a small village nearby who sold them to the orange growers by the nestful.

The earliest report of citrus ants at work among the orange trees appeared in a book on tropical and subtropical botany written by Hsi Han in AD 304. “The people of Chiao-Chih sell in their markets ants in bags of rush matting. The nests are like silk. The bags are all attached to twigs and leaves which, with the i ants inside the nests, are for sale. The ants are reddish-yellow in colour, bigger than ordinary ants. In the south, if the kan trees do not have this kind of ant, the fruits will all be damaged by many harmful insects, and not a single fruit will be perfect.”

Initially, farmers relied on nests which they collected from the wild or bought in the market where trade in nests was brisk. “It is said that in the south orange trees which are free of ants will have wormy fruits. Therefore, people race to buy nests for their orange trees,” wrote Liu Hsun in Strange Things Noted in the South in about 890.

The business guickly became more sophisticated. From the 10th century, coun­try people began to trap ants in artificial nests baited with fat. “Fruit-growing families buy these ants from vendors who make a business of collecting and selling such creatures,” wrote Chuang Chi-Yu in 1130. “They trap them by fill­ing hogs’ or sheep’s bladders with fat and placing them with the cavities open next to the ants’ nests. They wait until the ants have migrated into the bladders and take them away. This is known as ‘rearing orange ants’.” Farmers attached k the bladders to their trees, and in time the ants spread to other trees and built new nests.

By the 17th century, growers were building bamboo walkways between their trees to speed the colonisation of their orchards. The ants ran along these narrow bridges from one tree to another and established nests “by the hundreds of thousands”.

Did it work? The orange growers clearly thought so. One authority, Chhii Ta-Chun, writing in 1700, stressed how important it was to keep the fruit trees free of insect pests, especially caterpillars. “It is essential to eliminate them so that the trees are not injured. But hand labour is not nearly as efficient as ant power…”

Swingle was just as impressed. Yet despite his reports, many Western biologists t were sceptical. In the West, the idea of using one insect to destroy another was new and highly controversial. The first breakthrough had come in 1888, when the infant orange industry in California had been saved from extinction by the Australian vedalia beetle. This beetle was the only thing that had made any in- T roads into the explosion of cottony cushion scale that was threatening to destroy the state’s citrus crops. But, as Swingle now knew, California’s “first” was noth­ing of the sort. The Chinese had been expert in biocontrol for many centuries.

The long tradition of ants in the Chinese orchards only began to waver in the 1950s and 1960s with the introduction of powerful organic insecticides. Although most fruit growers switched to chemicals, a few hung onto their ants. Those who abandoned ants in favour of chemicals quickly became disillusioned. As costs soared and pests began to develop resistance to the chem­icals, growers began to revive the old ant patrols in the late 1960s. They had good reason to have faith in their insect workforce.

Research in the early 1960s showed that as long as there were enough ants in the trees, they did an excellent job of dispatching some pests – mainly the larger insects – and had modest success against others. Trees with yellow ants produced almost 20 per cent more healthy leaves than those without. More recent trials have shown that these trees yield just as big a crop as those protected by expensive chemical sprays.

One apparent drawback of using ants – and one of the main reasons for the early scepticism by Western scientists – was that citrus ants do nothing to control mealy bugs, waxy-coated scale insects which can do considerable damage to fruit trees. In fact, the ants protect mealy bugs in exchange for the sweet honey-dew they secrete. The orange growers always denied this was a problem but Western scientists thought they knew better.

Research in the 1980s suggests that the growers were right all along. Where X mealy bugs proliferate under the ants’ protection, they are usually heavily parasitised and this limits the harm they can do.

Orange growers who rely on carnivorous ants rather than poisonous chemicals maintain a better balance of species in their orchards. While the ants deal with the bigger insect pests, other predatory species keep down the numbers of smaller pests such as scale insects and aphids. In the long run, ants do a lot less damage than chemicals – and they’re certainly more effective than excommunication.

Questions 14-18
Look at the following events (Questions 14-18) and the list of dates below.

Match each event with the correct time A-G.

14 The first description of citrus ants is traded in the marketplace.
15 Swingle came to Asia for research.
16 The first record of one insect is used to tackle other insects in the western world.
17 Chinese fruit growers started to use pesticides in place of citrus ants.
18 Some Chinese farmers returned to the traditional bio-method

List of Dates
A 1888
B AD 890
C AD 304
D 1950s
E 1960s
F 1915
G 1130

Questions 19-26
Do the following statements agree with the information given in Reading Passage 2?

TRUE                             if the statement agrees with the information
FALSE                           if the statement contradicts the information
NOT GIVEN                if there is no information on this

19 China has more citrus pests than any other country in the world.
20 Swingle came to China to search for an insect to bring back to the US.
21 Many people were very impressed by Swingle’s discovery.
22 Chinese farmers found that pesticides became increasingly expensive.
23 Some Chinese farmers abandoned the use of pesticide.
24 Trees with ants had more leaves fall than those without.
25 Fields using ants yield as large a crop as fields using chemical pesticides.
26 Citrus ants often cause considerable damage to the bio-environment of the orchards.

Music: Language We All Speak

Section A
Music is one of the human species’ relatively few universal abilities. Without formal training, any individual, from Stone Age tribesman to suburban teenager, has the ability to recognise music and, in some fashion, to make it. Why this should be so is a mystery. After all, music isn’t necessary for getting through the day, and if it aids in reproduction, it does so only in highly indirect ways. Language, by contrast, is also everywhere – but for reasons that are more obvious. With language, you and the members of your tribe can organise a migration across Africa, build reed boats and cross the seas, and communicate at night even when you can’t see each other. Modern culture, in all its technological extravagance, springs directly from the human talent for manipulating symbols and syntax.

Scientists have always been intrigued by the connection between music and language. Yet over the years, words and melody have acquired a vastly different status in the lab and the seminar room. While language has long been considered essential to unlocking the mechanisms of human intelligence, music is generally treated as an evolutionary frippery – mere “auditory cheesecake”, as the Harvard cognitive scientist Steven Pinker puts it.

Section B
But thanks to a decade-long wave of neuroscience research, that tune is changing. A flurry of recent publications suggests that language and music may equally be able to tell us who we are and where we’re from – not just emotionally, but biologically. In July, the journal Nature Neuroscience devoted a special issue to the topic. And in an article in the 6 August issue of the Journal of Neuroscience, David Schwartz, Catherine Howe, and Dale Purves of Duke University argued that the sounds of music and the sounds of language are intricately connected.

To grasp the originality of this idea, it’s necessary to realise two things about how music has traditionally been understood. First, musicologists have long emphasised that while each culture stamps a special identity onto its music, music itself has some universal qualities. For example, in virtually all cultures, sound is divided into some or all of the 12 intervals that make up the chromatic scale -that is, the scale represented by the keys on a piano. For centuries, observers have attributed this preference for certain combinations of tones to the mathematical properties of sound itself.

Some 2,500 years ago, Pythagoras was the first to note a direct relationship between the harmoniousness of a tone combination and the physical dimensions of the object that produced it. For example, a plucked string will always play an octave lower than a similar string half its size, and a fifth lower than a similar string two thirds its length. This link between simple ratios and harmony has influenced music theory ever since.

Section C
This music-is-math idea is often accompanied by the notion that music, formally speaking at least, exists apart from the world in which it was created. Writing recently in The New York Review of Books, pianist and critic Charles Rosen discussed the long-standing notion that while painting and sculpture reproduce at least some aspects of the natural world, and writing describes thoughts and feelings we are all familiar with, music is entirely abstracted from the world in which we live. Neither idea is right, according to David Schwartz and his colleagues. Human musical preferences are fundamentally shaped not by elegant algorithms or ratios but by the messy sounds of real life, and of speech in particular – which in turn is shaped by our evolutionary heritage. “The explanation of music, like the explanation of any product of the mind, must be rooted in biology, not in numbers per se,” says Schwartz.

Schwartz, Howe, and Purves analysed a vast selection of speech sounds from a variety of languages to reveal the underlying patterns common to all utterances. In order to focus only on the raw sounds, they discarded all theories about speech and meaning, and sliced sentences into random bites. Using a database of over 100,000 brief segments of speech, they noted which frequency had the greatest emphasis in each sound. The resulting set of frequencies, they discovered, corresponded closely to the chromatic scale. In short, the building blocks of music are to be found in speech.

Far from being abstract, music presents a strange analogue to the patterns created by the sounds of speech. “Music, like visual arts, is rooted in our experience of the natural world,” says Schwartz. “It emulates our sound environment in the way that visual arts emulate the visual environment.” In music we hear the echo of our basic sound-making instrument – the vocal tract. The explanation for human music is simpler still than Pythagoras’s mathematical equations: We like the sounds that are familiar to us – specifically, we like the sounds that remind us of us.

This brings up some chicken-or-egg evolutionary questions. It may be that music imitates speech directly, the researchers say, in which case it would seem that language evolved first. It’s also conceivable that music came first and language is in effect an imitation of song – that in everyday speech we hit the musical notes we especially like. Alternately, it may be that music imitates the general products of the human sound-making system, which just happens to be mostly speech. “We can’t know this,” says Schwartz. “What we do know is that they both come from the same system, and it is this that shapes our preferences.”

Section D
Schwartz’s study also casts light on the long-running question of whether animals understand or appreciate music. Despite the apparent abundance of “music” in the natural world – birdsong, whalesong, wolf howls, synchronised chimpanzee hooting – previous studies have found that many laboratory animals don’t show a great affinity for the human variety of music making.

Marc Hauser and Josh McDermott of Harvard argued in the July issue of Nature Neuroscience that animals don’t create or perceive music the way we do. The fact that laboratory monkeys can show recognition of human tunes is evidence, they say, of shared general features of the auditory system, not any specific chimpanzee musical ability. As for birds, those most musical beasts, they generally recognise their own tunes – a narrow repertoire – but don’t generate novel melodies like we do. There are no avian Mozarts.

But what’s been played to animals, Schwartz notes, is human music. If animals evolve preferences for sound as we do – based upon the soundscape in which they live – then their “music” would be fundamentally different from ours. In the same way our scales derive from human utterances, a cat’s idea of a good tune would derive from yowls and meows. To demonstrate that animals don’t appreciate sound the way we do, we’d need evidence that they don’t respond to “music” constructed from their own sound environment.

Section E
No matter how the connection between language and music is parsed, what is apparent is that our sense of music, even our love for it, is as deeply rooted in our biology and in our brains as language is. This is most obvious with babies, says Sandra Trehub at the University of Toronto, who also published a paper in the Nature Neuroscience special issue.

For babies, music and speech are on a continuum. Mothers use musical speech to “regulate infants’ emotional states”, Trehub says. Regardless of what language they speak, the voice all mothers use with babies is the same: “something between speech and song”. This kind of communication “puts the baby in a trancelike state, which may proceed to sleep or extended periods of rapture”. So if the babies of the world could understand the latest research on language and music, they probably wouldn’t be very surprised. The upshot, says Trehub, is that music may be even more of a necessity than we realise.

Questions 27-31
Reading Passage 3 has five sections A-E.

Choose the correct heading for each section from the list of headings below.

27 Section A
28 Section B
29 Section C
30 Section D
31 Section E

List of Headings
i. Communication in music with animals
ii. New discoveries on animal music
iii. Music and language contrasted
iv. Current research on music
v. Music is beneficial for infants.
vi. Music transcends cultures.
vii. Look back at some of the historical theories
viii. Are we genetically designed for music?

Questions 32-38
Look at the following people (Questions 32-38) and the list of statements below.

Match each person with the correct statement.

32 Steven Pinker
33 Musicologists
34 Greek philosopher Pythagoras
35 Schwartz, Howe, and Purves
36 Marc Hauser and Josh McDermott
37 Charles Rosen
38 Sandra Trehub

List of Statements
A Music exists outside of the world it is created in.
B Music has a universal character despite cultural influences on it.
C Music is a necessity for humans.
D Music preference is related to the surrounding influences.
E He discovered the mathematical basis of music.
F Music doesn’t enjoy the same status of research interest as language.
G Humans and monkeys have similar traits in perceiving sound.

Learning by Examples

A Learning Theory is rooted in the work of Ivan Pavlov, the famous scien­tist who discovered and documented the principles governing how animals (humans included) learn in the 1900s. Two basic kinds of learning or condi­tioning occur, one of which is famously known as the classical conditioning. Classical conditioning happens when an animal learns to associate a neutral stimulus (signal) with a stimulus that has intrinsic meaning based on how closely in time the two stimuli are presented. The classic example of classical conditioning is a dog’s ability to associate the sound of a bell (something that originally has no meaning to the dog) with the presentation of food (something that has a lot of meaning to the dog) a few moments later. Dogs are able to learn the association between bell and food, and will salivate im­mediately after hearing the bell once this connection has been made. Years of learning research have led to the creation of a highly precise learning theory that can be used to understand and predict how and under what cir­cumstances most any animal will learn, including human beings, and eventu­ally help people figure out how to change their behaviours.

B Role models are a popular notion for guiding child development, but in re­cent years very interesting research has been done on learning by examples in other animals. If the subject of animal learning is taught very much in terms of classical or operant conditioning, it places too much emphasis on how we allow animals to learn and not enough on how they are equipped to learn. To teach a course of mine, I have been dipping profitably into a very interesting and accessible compilation of papers on social learning in mammals, including chimps and human children, edited by Heyes and Galef (1996).

C The research reported in one paper started with a school field trip to Israel to a pine forest where many pine cones were discovered, stripped to the central core. So the investigation started with no weighty theoretical intent, but was directed at finding out what was eating the nutritious pine seeds and how they managed to get them out of the cones. The culprit proved to be the versatile and athletic black rat,(Rattus rattus), and the technique was to bite each cone scale off at its base, in sequence from base to tip following the spiral growth pattern of the cone.

D Urban black rats were found to lack the skill and were unable to learn it even if housed with experienced cone strippers. However, infants of urban mothers cross-fostered by stripper mothers acquired the skill, whereas in­fants of stripper mothers fostered by an urban mother could not. Clearly the skill had to be learned from the mother. Further elegant experiments showed that naive adults could develop the skill if they were provided with cones from which the first complete spiral of scales had been removed; rather like our new photocopier which you can work out how to use once someone has shown you how to switch it on. In the case of rats, the young­sters take cones away from the mother when she is still feeding on them, allowing them to acquire the complete stripping skill.

E A good example of adaptive bearing we might conclude, but let’s see the economies. This was determined by measuring oxygen uptake of a rat strip­ping a cone in a metabolic chamber to calculate energetic cost and compar­ing it with the benefit of the pine seeds measured by calorimeter. The cost proved to be less than 10% of the energetic value of the cone. An acceptable profit margin.

F A paper in 1996, Animal Behaviour by Bednekoff and Baida, provides a differ­ent view of the adaptiveness of social learning. It concerns the seed caching behaviour of Clark’s Nutcracker (Nucifraga columbiana) and the Mexican Jay (Aphelocoma ultramarina). The former is a specialist, caching 30,000 or so seeds in scattered locations that it will recover over the months of winter; the Mexican Jay will also cache food but is much less dependent upon this than the Nutcracker. The two species also differ in their social structure: the Nutcracker being rather solitary while the Jay forages in social groups.

G The experiment is to discover not just whether a bird can remember where it hid a seed but also if it can remember where it saw another bird hide a seed. The design is slightly comical with a cacher bird wandering about a room with lots of holes in the floor hiding food in some of the holes, while watched by an observer bird perched in a cage. Two days later, cachers and observers are tested for their discovery rate against an estimated random performance. In the role of cacher, not only the Nutcracker but also the less specialised Jay performed above chance; more surprisingly, however, jay obser­vers were as successful as jay cachers whereas nutcracker observers did no better than chance. It seems that, whereas the Nutcracker is highly adapted at remembering where it hid its own seeds, the social living Mexican Jay is more adept at remembering, and so exploiting, the caches of others.

Questions 1-4
Reading Passage 1 has seven paragraphs A-G.

Which paragraph contains the following information?

1 A comparison between rats’ learning and human learning
2 A reference to the earliest study in animal learning
3 The discovery of who stripped the pine cone
4 A description of a cost-effectiveness experiment

Questions 5-8
Do the following statements agree with the information given in Reading Passage 1?

TRUE                    if the statement agrees with the information
FALSE                  if the statement contradicts the information
NOT GIVEN       if there is no information on this

5 The field trip to Israel was to investigate how black rats learn to strip pine cones.
6 The pine cones were stripped from bottom to top by black rats.
7 It can be learned from other relevant experiences to use a photocopier.
8 Stripping the pine cones is an instinct of the black rats.

Questions 9-13
Complete the summary below using words from the options given below.

While the Nutcracker is more able to cache seeds, the Jay relies (9)……………………………on caching food and is thus less specialised in this ability, but more (10)………………………………… To study their behaviour of caching and finding their caches, an experiment was designed and carried out to test these two birds for their ability to remember where they hid the seeds.

In the experiment, the cacher bird hid seeds in the ground while the other (11)………………………………. As a result, the Nutcracker and the Mexican Jay showed different performance in the role of (12)………………………….at finding the seeds – the observing (13)…………………………..didn’t do as well as its counterpart.

Less

Social

Remembered

Nutcracker

More

Cache

Watched

Solitary

Observer

Jay

A New Ice Age

William Curry is a serious, sober climate scientist, not an art critic. But he has spent a lot of time perusing Emanuel Gottlieb Leutze’s famous painting “George Washington Crossing the Delaware”, which depicts a boatload of colonial Ameri­can soldiers making their way to attack English and Hessian troops the day after Christmas in 1776. “Most people think these other guys in the boat are rowing, but they are actually pushing the ice away,” says Curry, tapping his finger on a reproduction of the painting. Sure enough, the lead oarsman is bashing the frozen river with his boot. “I grew up in Philadelphia. The place in this painting is 30 min­utes away by car. I can tell you, this kind of thing just doesn’t happen anymore.”

But it may again soon. And ice-choked scenes, similar to those immortalised by the 16th-century Flemish painter Pieter Brueghel the Elder, may also return to Europe. His works, including the 1565 masterpiece “Hunters in the Snow”, make the now-temperate European landscapes look more like Lapland. Such frigid set­tings were commonplace during a period dating roughly from 1300 to 1850 be­cause much of North America and Europe was in the throes of a little ice age. And now there is mounting evidence that the chill could return. A growing number of scientists believe conditions are ripe for another prolonged cooldown, or small ice age. While no one is predicting a brutal ice sheet like the one that covered the Northern Hemisphere with glaciers about 12,000 years ago, the next cooling trend could drop average temperatures 5 degrees Fahrenheit over much of the United States and 10 degrees in the Northeast, northern Europe, and northern Asia.

“It could happen in 10 years,” says Terrence Joyce, who chairs the Woods Hole Physical Oceanography Department. “Once it does, it can take hundreds of years to reverse.” And he is alarmed that Americans have yet to take the threat seriously.

A drop of 5 to 10 degrees entails much more than simply bumping up the thermo­stat and carrying on. Both economically and ecologically, such quick, persistent chilling could have devastating consequences. A 2002 report titled “Abrupt Climate Change: Inevitable Surprises”, produced by the National Academy of Sciences, pegged the cost from agricultural losses alone at $100 billion to $250 billion while also predicting that damage to ecologies could be vast and incalculable. A grim sampler: disappearing forests, increased housing expenses, dwindling fresh water, lower crop yields, and accelerated species extinctions.

The reason for such huge effects is simple. A quick climate change wreaks far more disruption than a slow one. People, animals, plants, and the economies that depend on them are like rivers; says the report: “For example, high water in a river will pose few problems until the water runs over the bank, after which levees can be breached and massive flooding can occur. Many biological processes undergo shifts at particular thresholds of temperature and precipitation.”

Political changes since the last ice age could make survival far more difficult for the world’s poor. During previous cooling periods, whole tribes simply picked up and moved south, but that option doesn’t work in the modern, tense world of closed borders. “To the extent that abrupt climate change may cause rapid and ex­tensive changes of fortune for those who live off the land, the inability to migrate may remove one of the major safety nets for distressed people,” says the report.

But first things first. Isn’t the earth actually warming? Indeed it is, says Joyce. ‘ In his cluttered office, full of soft light from the foggy Cape Cod morning, he explains how such warming could actually be the surprising culprit of the next mini-ice age. The paradox is a result of the appearance over the past 30 years in the North Atlantic of huge rivers of fresh water – the equivalent of a 10-foot-thick layer – mixed into the salty sea. No one is certain where the fresh torrents are coming from, but a prime suspect is melting Arctic ice, caused by a build-up of carbon dioxide in the atmosphere that traps solar energy.

The freshwater trend is major news in ocean-science circles. Bob Dickson, a Brit­ish oceanographer who sounded an alarm at a February conference in Honolulu, has termed the drop in salinity and temperature in the Labrador Sea – a body of water between northeastern Canada and Greenland that adjoins the Atlantic – “arguably the largest full-depth changes observed in the modern instrumental oceanographic record”.

The trend could cause a little ice age by subverting the northern penetration of Gulf Stream waters. Normally, the Gulf Stream, laden with heat soaked up in the tropics, meanders up the east coasts of the United States and Canada. As it flows northward, the stream surrenders heat to the air. Because the prevailing North Atlantic winds blow eastward, a lot of the heat wafts to Europe. That’s why many scientists believe winter temperatures on the Continent are as much as 36 de­grees Fahrenheit warmer than those in North America at the same latitude. Frigid Boston, for example, lies at almost precisely the same latitude as balmy Rome. And some scientists say the heat also warms Americans and Canadians. “It’s a real mistake to think of this solely as a European phenomenon,” says Joyce.

Having given up its heat to the air, the now-cooler water becomes denser and sinks into the North Atlantic by a mile or more in a process oceanographers call thermohaline circulation. This massive column of cascading cold is the main engine powering a deep-water current called the Great Ocean Conveyor that snakes through all the world’s oceans. But as the North Atlantic fills with fresh water, it grows less dense, making the waters carried northward by the Gulf Stream less able to sink. The new mass of relatively fresh water sits on top of the ocean like a big thermal blanket, threatening the thermohaline circulation. That in turn could make the Gulf Stream slow or veer southward. At some point, the whole system could simply shut down, and do so quickly. “There is increasing evidence that we are getting closer to a transition point, from which we can jump to a new state.”

Questions 14-17
Choose the correct letter A, B, C or D.

14 The writer uses paintings in the first paragraph to illustrate
A possible future climate change.
B climate change of the last two centuries.
C the river doesn’t freeze in winter anymore.
D how George Washington led his troops across the river.

15 Which of the following do scientists believe to be possible?
A The temperature may drop over much of the Northern Hemisphere.
B It will be colder than 12,000 years ago.
C The entire Northern Hemisphere will be covered in ice.
D Europe will look more like Lapland.

16 Why is it difficult for the poor to survive the next ice age?
A People don’t live in tribes anymore.
B Politics are changing too fast today.
C Abrupt climate change causes people to live off their land.
D Migration has become impossible because of closed borders.

17 Why is continental Europe much warmer than North America in winter?
A Wind blows most of the heat of tropical currents to Europe.
B Europe and North America are at different latitudes.
C The Gulf Stream has stopped yielding heat to the air.
D The Gulf Stream moves north along the east coast of North America.

Questions 18-22
Look at the following statements (Questions 18-22) and the list of people in the box below.

Match each statement with the correct person A-D.

18 Most Americans are not prepared for the next ice age.
19 The result of abrupt climate change is catastrophic.
20 The world is not as cold as it used to be.
21 Global warming is closely connected to the ice age.
22 Alerted people to the change of ocean water in a conference

List of People
A William Curry
B Terrence Joyce
C Bob Dickson
D National Academy of Sciences

The Fruit Book

It’s not every scientist who writes books for people who can’t read. And how many scientists want their books to look as dog-eared as possible? But Pa­tricia Shanley, an ethnobotanist, wanted to give something back. After the poorest people of the Amazon allowed her to study their land and its ecology, she turned her research findings into a picture book that tells the local people how to get a good return on their trees without succumbing to the lure of a quick buck from a logging company. It has proved a big success.

A The book is called Fruit Trees and Useful Plants in the Lives of Amazonians, but is better known simply as the “fruit book”. The second edition was pro­duced at the request of politicians in western Amazonia. Its blend of hard science and local knowledge on the use and trade of 35 native forest species has been so well received (and well used) that no less a dignitary than Bra­zil’s environment minister, Marina Silva, has written the foreword. “There is nothing else like the Shanley book,” says Adalberto Verrisimo, director of the Institute of People and the Environment of the Amazon. “It gives sci­ence back to the poor, to the people who really need it.”

B Shanley’s work on the book began a decade ago, with a plea for help from the Rural Workers’ Union of Paragominas, a Brazilian town whose prosperity is based on exploitation of timber. The union realised that logging companies would soon be knocking on the doors of the caboclos, peasant farmers living on the Rio Capim, an Amazon tributary in the Brazilian state of Para. Isol­ated and illiterate, the caboclos would have little concept of the true value of their trees; communities downstream had already sold off large blocks of forest for a pittance. “What they wanted to know was how valuable the forests were,” recalls Shanley, then a researcher in the area for the Massa­chusetts-based Woods Hole Research Centre.

C The Rural Workers’ Union wanted to know whether harvesting wild fruits would make economic sense in the Rio Capim. “There was a lot of interest in trading non-timber forest products (NTFPs),” Shanley says. At the time, environmental groups and green-minded businesses were promoting the idea. This was the view presented in a seminal paper, Valuation of an Ama­zonian Rainforest, published in Nature in 1989. The researchers had calcu­lated that revenues from the sale of fruits could far exceed those from a one- off sale of trees to loggers. “The union was keen to discover whether it made more sense conserving the forest for subsistence use and the possible sale of fruit, game and medicinal plants, than selling trees for timber,” says Shanley. Whether it would work for the caboclos was far from clear.

D Although Shanley had been invited to work in the Rio Capim, some caboclos were suspicious. “When Patricia asked if she could study my forest,” says Joao Fernando Moreira Brito, “my neighbours said she was a foreigner who’d come to rob me of my trees.” In the end, Moreira Brito, or Mangueira as he is known, welcomed Shanley and worked on her study. His land, an hour’s walk from the Rio Capim, is almost entirely covered with primary forest. A study of this and other tracts of forest selected by the communities enabled Shanley to identify three trees, found throughout the Amazon, whose fruit was much favoured by the caboclos: bacuri (Platonia insignis), uxi (Endop- leura uchi) and piquia (Cayocas villosum). The caboclos used their fruits, extracted oils, and knew what sort of wildlife they attracted. But, in the face of aggressive tactics from the logging companies, they had no measure of the trees’ financial worth. The only way to find out, Shanley decided, was to start from scratch with a scientific study. “From a scientific point of view, hardly anything was known about these trees,” she says. But six years of field research yielded a mass of data on their flowering and fruiting behaviour. During 1993 and 1994, 30 families weighed everything they used from the forest – game, fruit, fibre, medicinal plants – and documented its source.

E After three logging sales and a major fire in 1997, the researchers were also able to study the ecosystem’s reaction to logging and disturbance. They car­ried out a similar, though less exhaustive, study in 1999, this time with 15 families. The changes were striking. Average annual household consumption of forest fruit had fallen from 89 to 28 kilogrammes between 1993 and 1999. “What we found,” says Shanley, “was that fruit collection could coexist with a certain amount of logging, but after the forest fire it dropped dramatically.” Over the same period, fibre use also dropped from around 20 to 4 kilogrammes. The fire and logging also changed the nature of the caboclo diet. In 1993 most households ate game two or three times a month. By 1999 some were fortunate if they ate game more than two or three times a year.

F The loss of certain species of tree was especially significant. Shanley’s team persuaded local hunters to weigh their catch, noting the trees under which the animals were caught. Over the year, they trapped five species of game averaging 232 kilogrammes under piquia trees. Under copaiba, they caught just two species averaging 63 kilogrammes; and under uxi, four species weighing 38 kilogrammes. At last, the team was getting a handle on which trees were worth keeping, and which could reasonably be sold. “This showed that selling piquia trees to loggers for a few dollars made little sense,” explains Shanley. “Their local value lies in providing a prized fruit, as well as flowers which attract more game than any other species.”

G As a result of these studies, Shanley had to tell the Rural Workers’ Union of Paragominas that the Nature thesis could not be applied wholesale to their community – harvesting NTFPs would not always yield more than timber sales. Fruiting patterns of trees such as uxi were unpredictable, for example. In 1994, one household collected 3,654 uxi fruits; the following year, none at all.

H This is not to say that wild fruit trees were unimportant. On the contrary, argues Shanley, they are critical for subsistence, something that is often ig­nored in much of the current research on NTFPs, which tends to focus on their commercial potential. Geography was another factor preventing the Rio Capim caboclos from establishing a serious trade in wild fruit: villa­gers in remote areas could not compete with communities collecting NTFPs close to urban markets, although they could sell them to passing river boats.

I But Shanley and her colleagues decided to do more than just report their results to the union. Together with two of her research colleagues, Shanley wrote the fruit book. This, the Bible and a publication on medicinal plants co-authored by Shanley and designed for people with minimal literacy skills are about the only books you will see along this stretch of the Rio Capim. The first print ran to only 3,000 copies, but the fruit book has been remarkably influential, and is used by colleges, peasant unions, industries and the cabo­clos themselves. Its success is largely due to the fact that people with poor literacy skills can understand much of the information it contains about the non-timber forest products, thanks to its illustrations, anecdotes, stories and songs. “The book doesn’t tell people what to do,” says Shanley, “but it does provide them with choices.” The caboclos who have used the book now have a much better understanding of which trees to sell to the loggers, and which to protect.

Questions 27-32
Reading Passage 3 has nine paragraphs A-I.
Which paragraph contains the following information?

27 A description of Shanley’s initial data collection
28 Why a government official also contributes to the book
29 Reasons why the community asked Shanley to conduct the research
30 Reference to the starting point of her research
31 Two factors that alter food consumption patterns
32 Why the book is successful

Questions 33-40
Complete the summary below. Choose NO MORE THAN THREE WORDS from the passage for each answer.

Forest fire has caused local villagers to consume less:
33……………………….
34…………………………….

Game

There is the least amount of game hunted under (35)………………………….yield is also (36)…………………….. Thus, it is more reasonable to keep (37)……………………………..

All the trees can also be used for (38)…………………………..besides selling them to log­gers. But this is often ignored, because most researches usually focus on the (39)…………………………… of the trees.

The purpose of the book:
To give information about (40)………………………..

How to Spot a Liar

However much we may abhor it, deception comes naturally to all living things. Birds do it by feigning injury to lead hungry predators away from nesting young. Spider crabs do it by disguise: adorning themselves with strips of kelp and other debris, they pretend to be something they are not – and so escape their enemies. Nature amply rewards successful deceivers by allowing them to survive long enough to mate and reproduce. So it may come as no surprise to learn that human beings- who, according to psychologist Gerald Johnson of the University of South California, or lied to about 200 times a day, roughly one untruth every 5 minutes- often deceive for exactly the same reasons: to save their own skins or to get something they can’t get by other means.

But knowing how to catch deceit can be just as important a survival skill as knowing how to tell a lie and get away with it. A person able to spot falsehood quickly is unlikely to be swindled by an unscrupulous business associate or hoodwinked by a devious spouse. Luckily, nature provides more than enough clues to trap dissemblers in their own tangled webs- if you know where to look. By closely observing facial expressions, body language and tone of voice, practically anyone can recognise the tell-tale signs of lying. Researchers are even programming computers – like those used on Lie Detector -to get at the truth by analysing the same physical cues available to the naked eye and ear. “With the proper training, many people can learn to reliably detect lies,” says Paul Ekman, professor of psychology at the University of California, San Francisco, who has spent the past 15 years studying the secret art of deception.

In order to know what kind of Lies work best, successful liars need to accurately assess other people’s emotional states. Ackman’s research shows that this same emotional intelligence is essential for good lie detectors, too. The emotional state to watch out for is stress, the conflict most liars feel between the truth and what they actually say and do.

Even high-tech lie detectors don’t detect lies as such; they merely detect the physical cues of emotions, which may or may not correspond to what the person being tested is saying. Polygraphs, for instance, measure respiration, heart rate and skin conductivity, which tend to increase when people are nervous – as they usually are when lying. Nervous people typically perspire, and the salts contained in perspiration conducts electricity. That’s why sudden leap in skin conductivity indicates nervousness -about getting caught, perhaps -which makes, in turn, suggest that someone is being economical with the truth. On the other hand, it might also mean that the lights in the television Studio are too hot- which is one reason polygraph tests are inadmissible in court. “Good lie detectors don’t rely on a single thing” says Ekma, but interpret clusters of verbal and non-verbal clues that suggest someone might be lying.”

The clues are written all over the face. Because the musculature of the face is directly connected to the areas of the brain that processes emotion, the countenance can be a window to the soul. Neurological studies even suggest that genuine emotions travel different pathways through the brain than insincere ones. If a patient paralyzed by stroke on one side of the face, for example, is asked to smile deliberately, only the mobile side of the mouth is raised. But tell that same person a funny joke, and the patient breaks into a full and spontaneous smile. Very few people -most notably, actors and politicians- are able to consciously control all of their facial expressions. Lies can often be caught when the liars true feelings briefly leak through the mask of deception. We don’t think before we feel, Ekman says. “Expressions tend to show up on the face before we’re even conscious of experiencing an emotion.”

One of the most difficult facial expressions to fake- or conceal, if it’s genuinely felt – is sadness. When someone is truly sad, the forehead wrinkles with grief and the inner corners of the eyebrows are pulled up. Fewer than 15% of the people Ekman tested were able to produce this eyebrow movement voluntarily. By contrast, the lowering of the eyebrows associated with an angry scowl can be replicated at will but almost everybody. “If someone claims they are sad and the inner corners of their eyebrows don’t go up, Ekmam says, the sadness is probably false.”

The smile, on the other hand, is one of the easiest facial expressions to counterfeit. It takes just two muscles -the zygomaticus major muscles that extend from the cheekbones to the corners of the lips- to produce a grin. But there’s a catch. A genuine smile affects not only the corners of the lips but also the orbicularis oculi, the muscle around the eye that produces the distinctive “crow’s feet” associated with people who laugh a lot. A counterfeit grin can be unmasked if the corners of the lips go up, the eyes crinkle, but the inner corners of the eyebrows are not lowered, a movement controlled by the orbicularis oculi that is difficult to fake. The absence of lowered eyebrows is one reason why the smile looks so strained and stiff.

Questions 1-5

YES                          if the statement agrees with the information
NO                            if the statement contradicts the information
NOT GIVEN         if there is no information on this

1 All living animals can lie.
2 Some people tell lies for self-preservation.
3 Scientists have used computers to analyze which part of the brain is responsible for telling lies.
4 Lying as a survival skill is more important than detecting a lie.
5 To be a good liar, one has to understand other people’s emotions.

Questions 6-9
Choose the correct letter A, B, C or D.

6. How does the lie detector work?
A It detects whether one’s emotional state is stable.
B It detects one’s brain activity level.
C It detects body behavior during one’s verbal response.
D It analyses one’s verbal response word by word.

7. Lie detectors can’t be used as evidence in a court of law because
A Lights often cause lie detectors to malfunction.
B They are based on too many verbal and non-verbal clues.
C Polygraph tests are often inaccurate.
D There may be many causes of certain body behavior.

8. Why does the author mention the paralyzed patients?
A To demonstrate how a paralyzed patient smiles
B To show the relation between true emotions and body behavior
C To examine how they were paralyzed
D To show the importance of happiness from recovery

9. The author uses politicians to exemplify that they can
A Have emotions.
B Imitate actors.
C Detect other people’s lives.
D Mask their true feelings.

Questions 10-13
Classify the following facial traits as referring to

A sadness
B anger
C happiness

10 Inner corners of eyebrows raised
11 The whole eyebrows lowered
12 Lines formed around
13 Lines form above eyebrows

Being Left-handed in a Right-handed World

The world is designed for right-handed people. Why does a tenth of the population prefer the left?

A The probability that two right-handed people would have a left-handed child is only about 9.5 percent. The chance rises to 19.5 percent if one parent is a lefty and 26 percent if both parents are left-handed. The preference, however, could also stem from an infant’s imitation of his parents. To test genetic influence, starting in the 1970s British biologist Marian Annett of the University of Leicester hypothesized that no single gene determines handedness. Rather, during fetal development, a certain molecular factor helps to strengthen the brain’s left hemisphere, which increases the probability that the right hand will be dominant, because the left side of the brain controls the right side of the body, and vice versa. Among the minority of people who lack this factor, handedness develops entirely by chance. Research conducted on twins complicates the theory, however. One in five sets of identical twins involves one right-handed and one left-handed person, despite the fact that their genetic material is the same. Genes, therefore, are not solely responsible for handedness.

B Genetic theory is also undermined by results from Peter Hepper and his team at Queen’s University in Belfast, Ireland. In 2004 the psychologists used ultrasound to show that by the 15th week of pregnancy, fetuses already have a preference as to which thumb they suck. In most cases, the preference continued after birth. At 15 weeks, though, the brain does not yet have control over the body’s limbs. Hepper speculates that fetuses tend to prefer whichever side of the body is developing quicker and that their movements, in turn, influence the brain’s development. Whether this early preference is temporary or holds up throughout development and infancy is unknown. Genetic predetermination is also contradicted by the widespread observation that children do not settle on either their right or left hand until they are two or three years old.

C But even if these correlations were true, they did not explain what actually causes left-handedness. Furthermore, specialization on either side of the body is common among animals. Cats will favor one paw over another when fishing toys out from under the couch. Horses stomp more frequently with one hoof than the other. Certain crabs motion predominantly with the left or right claw. In evolutionary terms, focusing power and dexterity in one limb is more efficient than having to train two, four or even eight limbs equally. Yet for most animals, the preference for one side or the other is seemingly random. The overwhelming dominance of the right hand is associated only with humans. That fact directs attention toward the brain’s two hemispheres and perhaps toward language.

D Interest in hemispheres dates back to at least 1836. That year, at a medical conference, French physician Marc Dax reported on an unusual commonality among his patients. During his many years as a country doctor, Dax had encountered more than 40 men and women for whom speech was difficult, the result of some kind of brain damage. What was unique was that every individual suffered damage to the left side of the brain. At the conference, Dax elaborated on his theory, stating that each half of the brain was responsible for certain functions and that the left hemisphere controlled speech. Other experts showed little interest in the Frenchman’s ideas. Over time, however, scientists found more and more evidence of people experiencing speech difficulties following injury to the left brain. Patients with damage to the right hemisphere most often displayed disruptions in perception or concentration. Major advancements in understanding the brain’s asymmetry were made in the 1960s as a result of so-called split-brain surgery, developed to help patients with epilepsy. During this operation, doctors severed the corpus callosum—the nerve bundle that connects the two hemispheres. The surgical cut also stopped almost all normal communication between the two hemispheres, which offered researchers the opportunity to investigate each side’s activity.

E In 1949 neurosurgeon Juhn Wada devised the first test to provide access to the brain’s functional organization of language. By injecting an anesthetic into the right or left carotid artery, Wada temporarily paralyzed one side of a healthy brain, enabling him to more closely study the other side’s capabilities. Based on this approach, Brenda Milner and the late Theodore Rasmussen of the Montreal Neurological Institute published a major study in 1975 that confirmed the theory that country doctor Dax had formulated nearly 140 years earlier: in 96 percent of right-handed people, language is processed much more intensely in the left hemisphere. The correlation is not as clear in lefties, however. For two thirds of them, the left hemisphere is still the most active language processor. But for the remaining third, either the right side is dominant or both sides work equally, controlling different language functions. That last statistic has slowed acceptance of the notion that the predominance of right-handedness is driven by left-hemisphere dominance in language processing. It is not at all clear why language control should somehow have dragged the control of body movement with it. Some experts think one reason the left hemisphere reigns over language is because the organs of speech processing—the larynx and tongue—are positioned on the body’s symmetry axis. Because these structures were centered, it may have been unclear, in evolutionary terms, which side of the brain should control them, and it seems unlikely that shared operation would result in smooth motor activity. Language and handedness could have developed preferentially for very different reasons as well. For example, some researchers, including evolutionary psychologist Michael C. Corballis of the University of Auckland in New Zealand, think that the origin of human speech lies in gestures. Gestures predated words and helped language emerge. If the left hemisphere began to dominate speech, it would have dominated gestures, too, and because the left brain controls the right side of the body, the right hand developed more strongly.

F Perhaps we will know more soon. In the meantime, we can revel in what, if any, differences handedness brings to our human talents. Popular wisdom says right-handed, left-brained people excel at logical, analytical thinking. Left-handed, right-brained individuals are thought to possess more creative skills and may be better at combining the functional features emergent in both sides of the brain. Yet some neuroscientists see such claims as pure speculation. Fewer scientists are ready to claim that left-handedness means greater creative potential. Yet lefties are prevalent among artists, composers and the generally acknowledged great political thinkers. Possibly if these individuals are among the lefties whose language abilities are evenly distributed between hemispheres, the intense interplay required could lead to unusual mental capabilities.

G Or perhaps some lefties become highly creative simply because they must be more clever to get by in our right-handed world. This battle, which begins during the very early stages of childhood, may lay the groundwork for exceptional achievements.

Questions 14-18
Reading Passage 2 has seven sections A-G.
Which section contains the following information?

14 Preference of using one side of the body in animal species.
15 How likely one-handedness is born.
16 The age when the preference of using one hand is settled.
17 Occupations usually found in left-handed population.
18 A reference to an early discovery of each hemisphere’s function.

Questions 19-22
Look at the following researchers (Questions 19-22) and the list of findings below.
Match each researcher with the correct finding.
Write the correct letter A-G in boxes 19-22 on your answer sheet.

List of Findings
A Early language evolution is correlated to body movement and thus affecting the preference of use of one hand.
B No single biological component determines the handedness of a child.
C Each hemisphere of the brain is in charge of different body functions.
D Language process is mainly centered in the left-hemisphere of the brain.
E Speech difficulties are often caused by brain damage.
F The rate of development of one side of the body has influence on hemisphere preference in fetus.
G Brain function already matures by the end of the fetal stage.

19 Marian Annett
20 Peter Hepper
21 Brenda Milner & Theodore Rasmussen
22 Michael Corballis

Questions 23-26
Do the following statements agree with the information given in Reading Passage 2?

YES                        if the statement agrees with the information
NO                          if the statement contradicts the information
NOT GIVEN       if there is no information on this

23 The study of twins shows that genetic determinations not the only factor for left-handedness.
24 Marc Dax’s report was widely accepted in his time.
25 Juhn Wada based his findings on his research of people with language problems.
26 There tend to be more men with left-handedness than women.

What is a dinosaur?

A. Although the name dinosaur is derived from the Greek for “terrible lizard”, dinosaurs were not, in fact, lizards at all. Like lizards, dinosaurs are included in the class Reptilia, or reptiles, one of the five main classes of Vertebrata, animals with backbones. However, at the next level of classification, within reptiles, significant differences in the skeletal anatomy of lizards and dinosaurs have led scientists to place these groups of animals into two different superorders: Lepidosauria, or lepidosaurs, and Archosauria, or archosaurs.

B. Classified as lepidosaurs are lizards and snakes and their prehistoric ancestors. Included among the archosaurs, or “ruling reptiles”, are prehistoric and modern crocodiles, and the now extinct thecodonts, pterosaurs and dinosaurs. Palaeontologists believe that both dinosaurs and crocodiles evolved, in the later years of the Triassic Period (c. 248-208 million years ago), from creatures called pseudosuchian thecodonts. Lizards, snakes and different types of thecodont are believed to have evolved earlier in the Triassic Period from reptiles known as eosuchians.

C. The most important skeletal differences between dinosaurs and other archosaurs are in the bones of the skull, pelvis and limbs. Dinosaur skulls are found in a great range of shapes and sizes, reflecting the different eating habits and lifestyles of a large and varied group of animals that dominated life on Earth for an extraordinary 165 million years. However, unlike the skulls of any other known animals, the skulls of dinosaurs had two long bones known as vomers. These bones extended on either side of the head, from the front of the snout to the level of the holes on the skull known as the antorbital fenestra, situated in front of the dinosaur’s orbits or eyesockets.

D. All dinosaurs, whether large or small, quadrupedal or bidepal, fleet-footed or slow-moving, shared a common body plan. Identification of this plan makes it possible to differentiate dinosaurs from any other types of animal, even other archosaurs. Most significantly, in dinosaurs, the pelvis and femur had evolved so that the hind limbs were held vertically beneath the body, rather than sprawling out to the sides like the limbs of a lizard. The femur of a dinosaur had a sharply in-turned neck and a ball-shaped head, which slotted into a fully open acetabulum or hip socket. A supra-acetabular crest helped prevent dislocation of the femur. The position of the knee joint, aligned below the acetabulum, made it possible for the whole hind limb to swing backwards and forwards. This unique combination of features gave dinosaurs what is known as a “fully improved gait”. Evolution of this highly efficient method of walking also developed in mammals, but among reptiles it occurred only in dinosaurs.

E. For the purpose of further classification, dinosaurs are divided into two orders: Saurischia, or saurischian dinosaurs, and Ornithischia, or ornithischian dinosaurs. This division is made on the basis of their pelvic anatomy. All dinosaurs had a pelvic girdle with each side comprised of three bones: the pubis, ilium and ischium. However, the orientation of these bones follows one of two patterns. In saurischian dinosaurs, also known as lizard-hipped dinosaurs, the pubis points forwards, as is usual in most types of reptile. By contrast, in ornithischian, or bird-hipped, dinosaurs, the pubis points backwards towards the rear of the animal, which is also true of birds.

F. Of the two orders of dinosaurs, the Saurischia was the larger and the first to evolve. It is divided into two suborders: Therapoda, or therapods, and Sauropodomorpha, or sauropodomorphs. The therapods, or “beast feet”, were bipedal, predatory carnivores. They ranged in size from the mighty Tyrannosaurus rex, 12m long, 5.6m tall and weighing an estimated 6.4 tonnes, to the smallest known dinosaur, Compsognathus, a mere 1.4m long and estimated 3kg in weight when fully grown. The sauropodomorphs, or “lizard feet forms”, included both bipedal and quadrupedal dinosaurs. Some sauropodomorphs were carnivorous or omnivorous but later species were typically herbivorous. They included some of the largest and best-known of all dinosaurs, such as Diplodocus, a huge quadruped with an elephant-like body, a long, thin tail and neck that gave it a total length of 27m, and a tiny head.

G. Ornithischian dinosaurs were bipedal or quadrupedal herbivores. They are now usually divided into three suborders: Ornithipoda, Thyreophora and Marginocephalia. The ornithopods, or “bird feet”, both large and small, could walk or run on their long hind legs, balancing their body by holding their tails stiffly off the ground behind them. An example is Iguanodon, up to 9m long, 5m tall and weighing 4.5 tonnes. The thyreophorans, or “shield bearers”, also known as armoured dinosaurs, were quadrupeds with rows of protective bony spikes, studs, or plates along their backs and tails. They included Stegosaurus, 9m long and weighing 2 tonnes.

H. The marginocephalians, or “margined heads”, were bipedal or quadrupedal ornithschians with a deep bony frill or narrow shelf at the back of the skull. An example is Triceratops, a rhinoceros-like dinosaur, 9m long, weighing 5.4 tonnes and bearing a prominent neck frill and three large horns.

Questions 27-33
Reading Passage 3 has 8 paragraphs (A-H).
Choose the most suitable heading for each paragraph from the List of headings below.

List of headings
i. 165 million years
ii. The body plan of archosaurs
iii. Dinosaurs – terrible lizards
iv. Classification according to pelvic anatomy
v. The suborders of Saurischia
vi. Lizards and dinosaurs – two distinct superorders
vii. Unique body plan helps identify dinosaurs from other animals
viii. Herbivore dinosaurs
ix. Lepidosaurs
x. Frills and shelves
xi. The origins of dinosaurs and lizards
xii. Bird-hipped dinosaurs
xiii. Skull bones distinguish dinosaurs from other archosaurs

Example: Paragraph H                 x

27 Paragraph A
28 Paragraph B
29 Paragraph C
30 Paragraph D
31 Paragraph E
32 Paragraph F
33 Paragraph G

Questions 34-36
Complete then sentences below. Use NO MORE THAN THREE WORDS from the passage for each blank space.

34. Lizards and dinosaurs are classified into two different superorders because of the difference in their……………..
35. In the Triassic Period, ……………………..evolved into thecodonts, for example, lizards and snakes.
36. Dinosaur skulls differed from those of any other known animals because of the presence of vomers:………………

Questions 37-40
Choose one phrase (A-H) from the List of features to match with the Dinosaurs listed below.

Dinosaurs
37. Dinosaurs differed from lizards, because
38. Saurischian and ornithischian dinosaurs
39. Unlike therapods, sauropodomorphs
40. Some dinosaurs used their tails to balance, others

List of features
A are both divided into two orders.
B the former had a “fully improved gait”.
C were not usually very heavy.
D could walk or run on their back legs.
E their hind limbs sprawled out to the side.
F walked or ran on four legs, rather than two.
G both had a pelvic girdle comprising six bones.
H did not always eat meat.

William Gilbert and Magnetism

A The 16th and 17th centuries saw two great pioneers of modern science: Galileo and Gilbert. The impact of their findings is eminent. Gilbert was the first modern scientist, also the accredited father of the science of electricity and magnetism, an Englishman of learning and a physician at the court of Elizabeth. Prior to him, all that was known of electricity and magnetism was what the ancients knew, nothing more than that the lodestone possessed magnetic properties and that amber and jet, when rubbed, would attract bits of paper or other substances of small specific gravity. However, he is less well known than he deserves.

B Gilbert’s birth pre-dated Galileo. Born in an eminent local family in Colchester County in the UK, on May 24, 1544, he went to grammar school, and then studied medicine at St John’s College, Cambridge, graduating in 1573. Later he travelled in the continent and eventually settled down in London.

C He was a very successful and eminent doctor. All this culminated in his election to the president of the Royal Science Society. He was also appointed personal physician to the Queen (Elizabeth I), and later knighted by the Queen. He faithfully served her until her death. However, he didn’t outlive the Queen for long and died on November 30, 1603, only a few months after his appointment as personal physician to King James.

D Gilbert was first interested in chemistry but later changed his focus due to the large portion of mysticism of alchemy involved (such as the transmutation of metal). He gradually developed his interest in physics after the great minds of the ancient, particularly about the knowledge the ancient Greeks had about lodestones, strange minerals with the power to attract iron. In the meantime, Britain became a major seafaring nation in 1588 when the Spanish Armada was defeat­ed, opening the way to British settlement of America. British ships depended on the magnetic compass, yet no one understood why it worked. Did the Pole Star attract it, as Columbus once speculated; or was there a magnetic mountain at the pole, as described in Odyssey, which ships would never approach, because the sail­ors thought its pull would yank out all their iron nails and fittings? For nearly 20 years, William Gilbert conducted ingenious experiments to understand magnet­ism. His works include On the Magnet, Magnetic Bodies, and the Great Magnet of the Earth.

E Gilbert’s discovery was so important to modern physics. He investigated the nature of magnetism and electricity. He even coined the word “electric”. Though the early beliefs of magnetism were also largely entangled with superstitions such as that rubbing garlic on lodestone can neutralise its magnetism, one example being that sailors even believed the smell of garlic would even interfere with the action of compass, which is why helmsmen were forbidden to eat it near a ship’s compass. Gilbert also found that metals can be magnetised by rubbing mater­ials such as fur, plastic or the like on them. He named the ends of a magnet “north pole” and “south pole”. The magnetic poles can attract or repel, depending on polarity. In addition, however, ordinary iron is always attracted to a magnet. Though he started to study the relationship between magnetism and electricity, sadly he didn’t complete it. His research of static electricity using amber and jet only demonstrated that objects with electrical charges can work like magnets attracting small pieces of paper and stuff. It is a French guy named du Fay that discovered that there are actually two electrical charges, positive and negative.

F He also questioned the traditional astronomical beliefs. Though a Copernican, he didn’t express in his quintessential beliefs whether the earth is at the centre of the universe or in orbit around the sun. However, he believed that stars are not equidistant from the earth but have their own earth-like planets orbiting around them.

The earth itself is like a giant magnet, which is also why compasses always point north. They spin on an axis that is aligned with the earth’s polarity. He even likened the polarity of the magnet to the polarity of the earth and built an entire magnetic philosophy on this analogy. In his explanation, magnetism is the soul of the earth. Thus a perfectly spherical lodestone, when aligned with the earth’s poles, would wobble all by itself in 24 hours. Further, he also believed that the sun and other stars wobble just like the earth does around a crystal core, and speculated that the moon might also be a magnet caused to orbit by its magnetic attraction to the earth. This was perhaps the first proposal that a force might cause a heavenly orbit.

G His research method was revolutionary in that he used experiments rather than pure logic and reasoning like the ancient Greek philosophers did. It was a new attitude towards scientific investigation. Until then, scientific experiments were not in fashion. It was because of this scientific attitude, together with his contri­bution to our knowledge of magnetism, that a unit of magneto motive force, also known as magnetic potential, was named Gilbert in his honour. His approach of careful observation and experimentation rather than the authoritative opinion or deductive philosophy of others had laid the very foundation for modern science.

Questions 1-7
Reading Passage 1 has seven paragraphs A-G.

Choose the correct heading for each paragraph from the list of headings below.

List of headings
i Early years of Gilbert
ii What was new about his scientific research method
iii The development of chemistry
iv Questioning traditional astronomy
v Pioneers of the early science
vi Professional and social recognition
vii Becoming the president of the Royal Science Society
viii The great works of Gilbert
ix His discovery about magnetism
x His change of focus

1. Paragraph A
2. Paragraph B
3. Paragraph C
4. Paragraph D
5. Paragraph E
6. Paragraph F
7. Paragraph G

Questions 8-10
Do the following statements agree with the information given in Reading Passage 1?

TRUE                          if the statement agrees with the information
FALSE                        if the statement contradicts the information
NOT GIVEN            if there is no information on this

8. He is less famous than he should be.
9. He was famous as a doctor before he was employed by the Queen.
10. He lost faith in the medical theories of his time.

Questions 11-13
Choose THREE letters A-F.

Which THREE of the following are parts of Gilbert’s discovery?

A Metal can be transformed into another
B Garlic can remove magnetism
C Metals can be magnetised
D Stars are at different distances from the earth
E The earth wobbles on its axis
F There are two charges of electricity

The 2003 Heatwave

It was the summer, scientists now realise, when global warming at last made itself unmistakably felt. We knew that summer 2003 was remarkable: Britain experienced its record high temperature and continental Europe saw forest fires raging out of control, great rivers drying to a trickle and thousands of heat-related deaths. But just how remarkable is only now becoming clear.

The three months of June, July and August were the warmest ever recorded in western and central Europe, with record national highs in Portugal, Germany and Switzerland as well as in Britain. And they were the warmest by a very long way. Over a great rectangular block of the earth stretching from west of Paris to northern Italy, taking in Switzerland and southern Germany, the average temperature for the summer months was 3.78°C above the long-term norm, said the Climatic Research Unit (CRU) of the University of East Anglia in Norwich, which is one of the world’s leading institutions for the monitoring and analysis of temperature records.

That excess might not seem a lot until you are aware of the context – but then you realise it is enormous. There is nothing like this in previous data, anywhere. It is considered so exceptional that Professor Phil Jones, the CRU’s director, is prepared to say openly – in a way few scientists have done before – that the 2003 extreme may be directly attributed, not to natural climate variability, but to global warming caused by human actions.

Meteorologists have hitherto contented themselves with the formula that recent high temperatures are “consistent with predictions” of climate change. For the great block of the map – that stretching between 35-50N and 0-20E – the CRU has reliable temperature records dating back to 1781. Using as a baseline the average summer temperature recorded between 1961 and 1990, departures from the temperature norm, or “anomalies”, over the area as a whole can easily be plotted. As the graph shows, such is the variability of our climate that over the past 200 years, there have been at least half a dozen anomalies, in terms of excess temperature – the peaks on the graph denoting very hot years – approaching, or even exceeding, 2°C. But there has been nothing remotely like 2003, when the anomaly is nearly four degrees.

“This is quite remarkable,’ Professor Jones told The Independent. “It’s very unusual in a statistical sense. If this series had a normal statistical distribution, you wouldn’t get this number. The return period [how often it could be expected to recur] would be something like one in a thousand years. If we look at an excess above the average of nearly four degrees, then perhaps nearly three degrees of that is natural variability, because we’ve seen that in past summers. But the final degree of it is likely to be due to global warming, caused by human actions.”

The summer of 2003 has, in a sense, been one that climate scientists have long been expecting. Until now, the warming has been manifesting itself mainly in winters that have been less cold than in summers that have been much hotter. Last week, the United Nations predicted that winters were warming so quickly that winter sports would die out in Europe’s lower-level ski resorts. But sooner or later, the unprecedented hot summer was bound to come, and this year it did.

One of the most dramatic features of the summer was the hot nights, especially in the first half of August. In Paris, the temperature never dropped below 23°C (73.4°F) at all between 7 and 14 August, and the city recorded its warmest-ever night on 11-12 August, when the mercury did not drop below 25.5°C (77.9°F). Germany recorded its warmest-ever night at Weinbiet in the Rhine Valley with a lowest figure of 27.6°C (80.6°F) on 13 August, and similar record-breaking nighttime temperatures were recorded in Switzerland and Italy.

The 15,000 excess deaths in France during August, compared with previous years, have been related to the high night-time temperatures. The number gradually increased during the first 12 days of the month, peaking at about 2,000 per day on the night of 12-13 August, then fell off dramatically after 14 August when the minimum temperatures fell by about 5°C. The elderly were most affected, with a 70 per cent increase in mortality rate in those aged 75-94.

For Britain, the year as a whole is likely to be the warmest ever recorded, but despite the high temperature record on 10 August, the summer itself – defined as the June, July and August period – still comes behind 1976 and 1995, when there were longer periods of intense heat. “At the moment, the year is on course to be the third hottest ever in the global temperature record, which goes back to 1856, behind 1998 and 2002, but when all the records for October, November and December are collated, it might move into second place/’ Professor Jones said. The ten hottest years in the record have all now occurred since 1990. Professor Jones is in no doubt about the astonishing nature of European summer of 2003. “The temperatures recorded were out of all proportion to the previous record,” he said.

“It was the warmest summer in the past 500 years and probably way beyond that. It was enormously exceptional.”His colleagues at the University of East Anglia’s Tyndall Centre for Climate Change Research are now planning a special study of it. “It was a summer that has not been experienced before, either in terms of the temperature extremes that were reached, or the range and diversity of the impacts of the extreme heat,” said the centre’s executive director, Professor Mike Hulme.

“It will certainly have left its mark on a number of countries, as to how they think and plan for climate change in the future, much as the 2000 floods have revolutionised the way the Government is thinking about flooding in the UK. The 2003 heatwave will have similar repercussions across Europe.”

Questions 14-19
Do the following statements agree with the information given in Reading Passage 2? In boxes 14-19 on your answer sheet write

YES                              if the statement agrees with the information
NO                                if the statement contradicts the information
NOT GIVEN             if there is no information on this

14 The average summer temperature in 2003 is almost 4 degrees higher than the average temperature of the past.
15 Global warming is caused by human activities.
16 Jones believes the temperature variation is within the normal range.
17 The temperature is measured twice a day in major cities.
18 There were milder winters rather than hotter summers before 2003.
19 Governments are building new high-altitude ski resorts.

Questions 20-21
Answer the questions below using NO MORE THAN TWO WORDS from the passage for each answer.
Write your answers in boxes 20-21 on your answer sheet.

20 What are the other two hottest years in Britain besides 2003?
21 What will also influence government policies in the future like the hot summer in 2003?

Questions 22-25
Complete the summary below using NO MORE THAN THREE WORDS from the passage for each answer.
Write your answers in boxes 22-25 on your answer sheet.

22 The other two hottest years around the globe were…………………
23 The ten hottest years on record all come after the year………………….
24 This temperature data has been gathered since…………………..
25 Thousands of people died in the country of………………………

Question 26
Choose the correct letter A, B, C or D.

26 Which one of the following can be best used as the title of this passage?
A Global Warming
B What Caused Global Warming
C The Effects of Global Warming
D That Hot Year in Europe

Amateur Naturalists

From the results of an annual Alaskan betting contest to sightings of migra­tory birds, ecologists are using a wealth of unusual data to predict the impact of climate change.

A Tim Sparks slides a small leather-bound notebook out of an envelope. The book’s yellowing pages contain bee-keeping notes made between 1941 and 1969 by the late Walter Coates of Kilworth, Leicestershire. He adds it to his growing pile of local journals, birdwatchers’ lists and gardening diaries. “We’re uncovering about one major new record each month,” he says, “I still get surprised.” Around two centuries before Coates, Robert Marsham, a landowner from Norfolk in the east of England, began recording the life cycles of plants and animals on his estate – when the first wood anemones flowered, the dates on which the oaks burst into leaf and the rooks began nesting. Successive Marshams continued compiling these notes for 211 years.

B Today, such records are being put to uses that their authors could not pos­sibly have expected. These data sets, and others like them, are proving in­valuable to ecologists interested in the timing of biological events, or phen­ology. By combining the records with climate data, researchers can reveal how, for example, changes in temperature affect the arrival of spring, al­lowing ecologists to make improved predictions about the impact of climate change. A small band of researchers is combing through hundreds of years of records taken by thousands of amateur naturalists. And more systematic projects have also started up, producing an overwhelming response. “The amount of interest is almost frightening,” says Sparks, a climate researcher at the Centre for Ecology and Hydrology in Monks Wood, Cambridgeshire.

C Sparks first became aware of the army of “closet phenologists”, as he de­scribes them, when a retiring colleague gave him the Marsham records. He now spends much of his time following leads from one historical data set to another. As news of his quest spreads, people tip him off to other historical records, and more amateur phenologists come out of their closets. The Brit­ish devotion to recording and collecting makes his job easier – one man from Kent sent him 30 years’ worth of kitchen calendars, on which he had noted the date that his neighbour’s magnolia tree flowered.

D Other researchers have unearthed data from equally odd sources. Rafe Sa­garin, an ecologist at Stanford University in California, recently studied records of a betting contest in which participants attempt to guess the exact time at which a specially erected wooden tripod will fall through the surface of a thawing river. The competition has taken place annually on the Tenana River in Alaska since 1917, and analysis of the results showed that the thaw now arrives five days earlier than it did when the contest began.

E Overall, such records have helped to show that, compared with 20 years ago, a raft of natural events now occur earlier across much of the northern hemi­sphere, from the opening of leaves to the return of birds from migration and the emergence of butterflies from hibernation. The data can also hint at how nature will change in the future. Together with models of climate change, amateurs’ records could help guide conservation. Terry Root, an ecologist at the University of Michigan in Ann Arbor, has collected birdwatchers’ counts of wildfowl taken between 1955 and 1996 on seasonal ponds in the Ameri­can Midwest and combined them with climate data and models of future warming. Her analysis shows that the increased droughts that the models predict could halve the breeding populations at the ponds. “The number of waterfowl in North America will most probably drop significantly with global warming,” she says.

F But not all professionals are happy to use amateur data. “A lot of scientists won’t touch them, they say they’re too full of problems,” says Root. Because different observers can have different ideas of what constitutes, for example, an open snowdrop. “The biggest concern with ad hoc observations is how carefully and systematically they were taken,” says Mark Schwartz of the University of Wisconsin, Milwaukee, who studies the interactions between plants and climate. “We need to know pretty precisely what a person’s been observing – if they just say ‘I noted when the leaves came out’, it might not be that useful.” Measuring the onset of autumn can be particularly problem­atic because deciding when leaves change colour is a more subjective pro­cess than noting when they appear.

G Overall, most phenologists are positive about the contribution that ama­teurs can make. “They get at the raw power of science: careful observation of the natural world,” says Sagarin. But the professionals also acknowledge the need for careful quality control. Root, for example, tries to gauge the quality of an amateur archive by interviewing its collector. “You always have to worry – things as trivial as vacations can affect measurement. I disregard a lot of records because they’re not rigorous enough,” she says. Others suggest that the right statistics can iron out some of the problems with amateur data. Together with colleagues at Wageningen University in the Netherlands, environmental scientist Arnold van Vliet is developing statistical techniques to account for the uncertainty in amateur phenological data. With the en­thusiasm of amateur phenologists evident from past records, professional researchers are now trying to create standardised recording schemes for fu­ture efforts. They hope that well-designed studies will generate a volume of observations large enough to drown out the idiosyncrasies of individual recorders. The data are cheap to collect, and can provide breadth in space, time and range of species. “It’s very difficult to collect data on a large geo­graphical scale without enlisting an army of observers,” says Root.

H Phenology also helps to drive home messages about climate change. “Be­cause the public understand these records, they accept them,” says Sparks. It can also illustrate potentially unpleasant consequences, he adds, such as the finding that more rat infestations are reported to local councils in warmer years. And getting people involved is great for public relations. “People are thrilled to think that the data they’ve been collecting as a hobby can be used for something scientific – it empowers them,” says Root.

Questions 27-33
Reading Passage 3 has eight paragraphs A-H.

Which paragraph contains the following information?

27 The definition of phenology
28 How Sparks first became aware of amateur records
29 How people reacted to their involvement in data collection
30 The necessity to encourage amateur data collection
31 A description of using amateur records to make predictions
32 Records of a competition providing clues to climate change
33 A description of a very old record compiled by generations of amateur naturalists

Questions 34-36
Complete the sentences below with NO MORE THAN TWO WORDS from the passage for each answer.

34 Walter Coates’s records largely contain the information of……………………..
35 Robert Marsham is famous for recording the…………………………….of animals and plants on his land.
36 According to some phenologists, global warming may cause the number of waterfowl in North America to drop significantly due to increased………………………….

Questions 37-40
Choose the correct letter A, B, C or D.

37 Why do a lot of scientists discredit the data collected by amateurs?
A Scientific methods were not used in data collection.
B Amateur observers are not careful in recording their data.
C Amateur data is not reliable.
D Amateur data is produced by wrong candidates.

38 Mark Schwartz used the example of leaves to illustrate that
A amateur records can’t be used.
B amateur records are always unsystematic.
C the colour change of leaves is hard to observe.
D valuable information is often precise.

39 How do the scientists suggest amateur data should be used?
A Using improved methods
B Being more careful in observation
C Using raw materials
D Applying statistical techniques in data collection

40 What’s the implication of phenology for ordinary people?
A It empowers the public.
B It promotes public relations.
C It warns people of animal infestation.
D It raises awareness about climate change in the public.

The History of Glass

From our earliest origins, man has been making use of glass. Historians have discovered that a type of natural glass – obsidian – formed in places such as the mouth of a volcano as a result of the intense heat of an eruption melting sand – was first used as tips for spears. Archaeologists have even found evidence of man-made glass which dates back to 4000 BC; this took the form of glazes used for coating stone beads. It was not until 1500 BC, however, that the first hollow glass container was made by covering a sand core with a layer of molten glass.

Glass blowing became the most common way to make glass containers from the first century BC. The glass made during this time was highly coloured due to the impurities of the raw material. In the first century AD, methods of creating colourless glass were developed, which was then tinted by the addition of colouring materials. The secret of glass making was taken across Europe by the Romans during this century. However, they guarded the skills and technology required to make glass very closely, and it was not until their empire collapsed in 476 AD that glass- making knowledge became widespread throughout Europe and the Middle East. From the 10th century onwards, the Venetians gained a reputation for technical skill and artistic ability in the making of glass bottles, and many of the city’s craftsmen left Italy to set up glassworks throughout Europe.

A major milestone in the history of glass occurred with the invention of lead crystal glass by the English glass manufacturer George Ravenscroft (1632 – 1683). He attempted to counter the effect of clouding that sometimes occurred in blown glass by introducing lead to the raw materials used in the process. The new glass he created was softer and easier to decorate, and had a higher refractive index, adding to its brilliance and beauty, and it proved invaluable to the optical industry. It is thanks to Ravenscroft’s invention that optical lenses, astronomical telescopes, microscopes and the like became possible.

In Britain, the modem glass industry only really started to develop after the repeal of the Excise Act in 1845. Before that time, heavy taxes had been placed on the amount of glass melted in a glasshouse, and were levied continuously from 1745 to 1845. Joseph Paxton’s Crystal Palace at London’s Great Exhibition of 1851 marked the beginning of glass as a material used in the building industry. This revolutionary new building encouraged the use of glass in public, domestic and horticultural architecture. Glass manufacturing techniques also improved with the advancement of science and the development of better technology.

From 1887 onwards, glass making developed from traditional mouth-blowing to a semi-automatic process, after factory- owner HM Ashley introduced a machine capable of producing 200 bottles per hour in Castleford, Yorkshire, England – more than three times quicker than any previous production method. Then in 1907, the first fully automated machine was developed in the USA by Michael Owens – founder of the Owens Bottle Machine Company (later the major manufacturers Owens- Illinois) – and installed in its factory. Owens’ invention could produce an impressive 2,500 bottles per hour Other developments followed rapidly, but it | was not until the First World War when Britain became cut off from essential glass suppliers, that glass became part of the scientific sector. Previous to this, glass had been seen as a craft rather than a precise science.

Today, glass making is big business. It has become a modem, hi-tech industry operating in a fiercely competitive global market where quality, design and service levels are critical to maintaining market share. Modem glass plants are capable of making millions of glass containers a day in many different colours, with green, brown and clear remaining the most popular. Few of us can imagine modem life without glass. It features in almost every aspect of our lives – in our homes, our cars and whenever we sit down to eat or drink. Glass packaging is used for many products, many beverages are sold in glass, as are numerous foodstuffs, as well as medicines and cosmetics.

Glass is an ideal material for recycling, and with growing consumer concern for green issues, glass bottles and jars are becoming ever more popular. Glass recycling is good news for the environment. It saves used glass containers being sent to landfill. As less energy is needed to melt recycled glass than to melt down raw materials, this also saves fuel and production costs. Recycling also reduces the need for raw materials to be quarried, thus saving precious resources.

Questions 1-8
Complete the notes below. Choose ONE WORD ONLY from the passage.

The History of Glass
• Early humans used a material called (1)……………………………..to make the sharp points of their (2)…………………..
• 4000 BC: (3)……………………….made of stone were covered in a coating of man made glass
• First century BC: glass was colored because of the (4)…………………….in the material
• Until 476 AD: only the (5)……………………………knew how to make glass
• From 10th century: Venetians became famous for making bottles out of glass
• 17th century: George Ravenscroft developed a process using (6)………………….to avoid the occurrence of (7)……………………………in blown glass
• Mid 19th century: British glass production developed after changes to laws concerning (8)……………………

Questions 9-13
In boxes 9-13 on your answer sheet write

TRUE                          if the statement agrees with the information
FALSE                        if the statement contradicts the information
NOT GIVEN             if there is no information on this

9. In 1887, HM Ashley has the fastest bottle producing machine that existed at the time.
10. Micheal Owens was hired by a large US company to design a fully automated bottle manufacturing machine for them.
11. Nowadays, most glass is produced by large international manufacturers.
12. Concern for the environment is leading to an increased demand for glass containers.
13. It is more expensive to produce recycle glass than to manufacture new glass.

Bring back the big cats

It’s time to start returning vanished native animals to Britain, says John Vesty There is a poem, written around 598 AD, which describes hunting a mystery animal called a llewyn. But what was it? Nothing seemed to fit, until 2006, when an animal bone, dating from around the same period, was found in the Kinsey Cave in northern England. Until this discovery, the lynx – a large spotted cat with tassel led ears – was presumed to have died out in Britain at least 6,000 years ago, before the inhabitants of these islands took up farming. But the 2006 find, together with three others in Yorkshire and Scotland, is compelling evidence that the lynx and the mysterious llewyn were in fact one and the same animal. If this is so, it would bring forward the tassel-eared cat’s estimated extinction date by roughly 5,000 years.

However, this is not quite the last glimpse of the animal in British culture. A 9th- century stone cross from the Isle of Eigg shows, alongside the deer, boar and aurochs pursued by a mounted hunter, a speckled cat with tasselled ears. Were it not for the animal’s backside having worn away with time, we could have been certain, as the lynx’s stubby tail is unmistakable. But even without this key feature, it’s hard to see what else the creature could have been. The lynx is now becoming the totemic animal of a movement that is transforming British environmentalism: rewilding.

Rewilding means the mass restoration of damaged ecosystems. It involves letting trees return to places that have been denuded, allowing parts of the seabed to recover from trawling and dredging, permitting rivers to flow freely again. Above all, it means bringing back missing species. One of the most striking findings of modern ecology is that ecosystems without large predators behave in completely different ways from those that retain them Some of them drive dynamic processes that resonate through the whole food chain, creating niches for hundreds of species that might otherwise struggle to survive. The killers turn out to be bringers of life.

Such findings present a big challenge to British conservation, which has often selected arbitrary assemblages of plants and animals and sought, at great effort and expense, to prevent them from changing. It has tried to preserve the living world as if it were a jar of pickles, letting nothing in and nothing out, keeping nature in a state of arrested development. But ecosystems are not merely collections of species; they are also the dynamic and ever-shifting relationships between them. And this dynamism often depends on large predators.

At sea the potential is even greater: by protecting large areas from commercial fishing, we could once more see what 18th-century literature describes: vast shoals of fish being chased by fin and sperm whales, within sight of the English shore. This policy would also greatly boost catches in the surrounding seas; the fishing industry’s insistence on scouring every inch of seabed, leaving no breeding reserves, could not be more damaging to its own interests.

Rewilding is a rare example of an environmental movement in which campaigners articulate what they are for rather than only what they are against. One of the reasons why the enthusiasm for rewilding is spreading so quickly in Britain is that it helps to create a more inspiring vision than the green movement’s usual promise of ‘Follow us and the world will be slightly less awful than it would otherwise have been.

The lynx presents no threat to human beings: there is no known instance of one preying on people. It is a specialist predator of roe deer, a species that has exploded in Britain in recent decades, holding back, by intensive browsing, attempts to re-establish forests. It will also winkle out sika deer: an exotic species that is almost impossible for human beings to control, as it hides in impenetrable plantations of young trees. The attempt to reintroduce this predator marries well with the aim of bringing forests back to parts of our bare and barren uplands. The lynx requires deep cover, and as such presents little risk to sheep and other livestock, which are supposed, as a condition of farm subsidies, to be kept out of the woods.

On a recent trip to the Cairngorm Mountains, I heard several conservationists suggest that the lynx could be reintroduced there within 20 years. If trees return to the bare hills elsewhere in Britain, the big cats could soon follow. There is nothing extraordinary about these proposals, seen from the perspective of anywhere else in Europe. The lynx has now been reintroduced to the Jura Mountains, the Alps, the Vosges in eastern France and the Harz mountains in Germany, and has re-established itself in many more places. The European population has tripled since 1970 to roughly 10,000. As with wolves, bears, beavers, boar, bison, moose and many other species, the lynx has been able to spread as farming has, left the hills and people discover that it is more lucrative to protect charismatic wildlife than to hunt it, as tourists will pay for the chance to see it. Large-scale rewilding is happening almost everywhere – except Britain.

Here, attitudes are just beginning to change. Conservationists are starting to accept that the old preservation-jar model is failing, even on its own terms. Already, projects such as Trees for Life in the Highlands provide a hint of what might be coming. An organisation is being set up that will seek to catalyse the rewilding of land and sea across Britain, its aim being to reintroduce that rarest of species to British ecosystems: hope.

Questions 14-18
Choose the correct letter A, B, C or D.

14. What did the 2006 discovery of the animal bone reveal about the lynx?
A. its physical appearance was very distinctive
B. its extinction was linked to the spread of farming
C. it vanished from Britain several thousand years ago
D. it survived in Britain longer than was previously thought

15. What point does the writer make about large predators in the third paragraph?
A. their presence can increase biodiversity
B. they may cause damage to local ecosystems
C. their behavior can alter according to the environment
D. they should be reintroduced only to areas where they were native

16. What does the write suggest about British conservation in the fourth paragraph?
A. it has failed to achieve its aims
B. it is beginning to change direction
C. it has taken a misguided approach
D. it has focused on the most widespread species

17. Protecting large areas of the sea from commercial fishing would result in
A. practical benefits for the fishing industry
B. some short term losses to the fishing industry
C. widespread opposition from the fishing industry
D. certain changes to techniques within the fishing industry

18. According to the author, what distinguishes rewilding from other environmental campaigns?
A. its objective is more achievable
B. its supporters are more articulate
C. its positive message is more appealing
D. it is based on sounder scientific principles

Questions 19-22
Complete the summary using the list of words and phrases A-F below.

Reintroducing the lynx to Britain
There would be many advantages to reintroducing the lynx to Britain. While there is no evidence that the lynx has ever put (19)………………………….in danger, it would reduce the numbers of certain (20)………………………..whose populations have increased enormously in recent decades. It would present only a minimal threat to (21)……………………….provided these were kept away from lynx habitats. Furthermore, the reintroduction programme would also like efficiently with initiatives to return native (22)……………………….to certain areas of the country.

A. Trees
B. Endangered species
C. Hillsides
D. Wild animals
E. Humans
F. Farm animals

Questions 23-26
In boxes 23-26 on your answer sheet, write

YES                            if the statement agrees with the claims of the writer
NO                             if the statement contradicts the claims of the writer
NOT GIVEN           if it is impossible to say what the writer thinks about this

23. Britain could become the first European country to reintroduce the lynx.
24. The large growth in the European lynx population since 1970 has exceeded conservationists’ expectations.
25. Changes in agricultural practices have extended the habitat of the lynx in Europe.
26. It has become apparent that species reintroduction has commercial advantages.

UK companies need more effective boards of directors

A After a number of serious failures of governance (that is, how they are managed at the highest level), companies in Britain, as well as elsewhere, should consider radical changes to their directors’ roles. It is clear that the role of a board director today is not an easy one. Following the 2008 financial meltdown, which resulted in a deeper and more prolonged period of economic downturn than anyone expected, the search for explanations in the many post-mortems of the crisis has meant blame has been spread far and wide. Governments, regulators, central banks and auditors have all been in the frame. The role of bank directors and management and their widely publicised failures have been extensively picked over and examined in reports, inquiries and commentaries.

B The knock-on t of this scrutiny has been to make the governance of companies in general an issue of intense public debate and has significantly increased the pressures on, and the responsibilities of, directors. At the simplest and most practical level, the time involved in fulfilling the demands of a board directorship has increased significantly, calling into question the effectiveness of the classic model of corporate governance by part-time, independent non-executive directors. Where once a board schedule may have consisted of between eight and ten meetings a year, in many companies the number of events requiring board input and decisions has dramatically risen. Furthermore, the amount of reading and preparation required for each meeting is increasing. Agendas can become overloaded and this can mean the time for constructive debate must necessarily be restricted in favour of getting through the business.

C Often, board business is devolved to committees in order to cope with the workload, which may be more efficient but can mean that the board as a whole is less involved in fully addressing some of the most important issues. It is not uncommon for the audit committee meeting to last longer than the main board meeting itself. Process may take the place of discussion and be at the expense of real collaboration, so that boxes are ticked rather than issues tackled.

D A radical solution, which may work for some very large companies whose businesses are extensive and complex, is the professional board, whose members would work up to three or four days a week, supported by their own dedicated staff and advisers. There are obvious risks to this and it would be important to establish clear guidelines for such a board to ensure that it did not step on the toes of management by becoming too engaged in the day- to-day running of the company. Problems of recruitment, remuneration and independence could also arise and this structure would not be appropriate for all companies. However, more professional and better-informed boards would have been particularly appropriate for banks where the executives had access to information that part-time non-executive directors lacked, leaving the latter unable to comprehend or anticipate the 2008 crash.

E One of the main criticisms of boards and their directors is that they do not focus sufficiently on longer-term matters of strategy, sustainability and governance, but instead concentrate too much on short-term financial metrics. Regulatory requirements and the structure of the market encourage this behaviour. The tyranny of quarterly reporting can distort board decision-making, as directors have to ‘make the numbers’ every four months to meet the insatiable appetite of the market for more data. This serves to encourage the trading methodology of a certain kind of investor who moves in and out of a stock without engaging in constructive dialogue with the company about strategy or performance, and is simply seeking a short¬ term financial gain. This effect has been made worse by the changing profile of investors due to the globalisation of capital and the increasing use of automated trading systems. Corporate culture adapts and management teams are largely incentivised to meet financial goals.

F Compensation for chief executives has become a combat zone where pitched battles between investors, management and board members are fought, often behind closed doors but increasingly frequently in the full glare of press attention. Many would argue that this is in the interest of transparency and good governance as shareholders use their muscle in the area of pay to pressure boards to remove underperforming chief executives. Their powers to vote down executive remuneration policies increased when binding votes came into force. The chair of the remuneration committee can be an exposed and lonely role, as Alison Carnwath, chair of Barclays Bank’s remuneration committee, found when she had to resign, having been roundly criticised for trying to defend the enormous bonus to be paid to the chief executive; the irony being that she was widely understood to have spoken out against it in the privacy of the committee.

G The financial crisis stimulated a debate about the role and purpose of the company and a heightened awareness of corporate ethics. Trust in the corporation has been eroded and academics such as Michael Sandel, in his thoughtful and bestselling book What Money Can’t Buy, are questioning the morality of capitalism and the market economy. Boards of companies in all sectors will need to widen their perspective to encompass these issues and this may involve a realignment of corporate goals. We live in challenging times.

Questions 27-33
Reading passage 3 has seven paragraphs A-G. Choose the correct heading for each paragraph from the list of heading below.

List of headings
i Disputes over financial arrangements regarding senior managers
ii The impact on companies of being subjected to close examination
iii The possible need to fundamental change in every area of business
iv Many external bodies being held responsible for problems
v The falling number of board members with broad enough experience
vi A risk that not all directors take part in solving major problems
vii Boards not looking far enough ahead
viii A proposal to change the way the board operates

27. Paragraph A
28. Paragraph B
29. Paragraph C
30. Paragraph D
31. Paragraph E
32. Paragraph F
33. Paragraph G

Questions 34-37
In boxes 34-37 on your answer sheet write

YES                             if the statement agrees with the claims of the writer
NO                               if the statement contradicts the claims of the writer
NOT GIVEN            if it is impossible to say what the writer thinks about this

34. Close scrutiny of the behavior of boards has increased since the economic downturn.
35. Banks have been mismanaged to a greater extent than other businesses.
36. Board meetings normally continue for as long as necessary to debate matters in full.
37. Using a committee structure would ensure that board members are fully informed about significant issues.

Questions 38-40
Complete the sentences below. Choose ONE WORD ONLY from the passage.

38. Before 2008, non-executive directors were at a disadvantage because of their lack of………………….
39. Boards tend to place too much emphasis on…………………………..considerations that are only of short term relevance.
40. On certain matters, such as pay the board may have to accept the views of…………………..

Flying tortoises

A Forests of spiny cacti cover much of the uneven lava plains that separate the interior of the Galapagos island of Isabela from the Pacific Ocean. With its five distinct volcanoes, the island resembles a lunar landscape. Only the thick vegetation at the skirt of the often cloud-covered peak of Sierra Negra offers respite from the barren terrain below. This inhospitable environment is home to the giant Galapagos tortoise. Some time after the Galapagos’s birth, around five million years ago, the islands were colonised by one or more tortoises from mainland South America. As these ancestral tortoises settled on the individual islands, the different populations adapted to their unique environments, giving rise to at least 14 different subspecies. Island life agreed with them. In the absence of significant predators, they grew to become the largest and longest-living tortoises on the planet, weighing more than 400 kilograms, occasionally exceeding 1,8 metres in length and living for more than a century.

B Before human arrival, the archipelago’s tortoises numbered in the hundreds of thousands. From the 17th century onwards, pirates took a few on board for food, but the arrival of whaling ships in the 1790s saw this exploitation grow exponentially. Relatively immobile and capable of surviving for months without food or water, the tortoises were taken on board these ships to act as food supplies during long ocean passages. Sometimes, their bodies were processed into high- grade oil. In total, an estimated 200,000 animals were taken from the archipelago before the 20th century. This historical exploitation was then exacerbated when settlers came to the islands. They hunted the tortoises and destroyed their habitat to clear land for agriculture. They also introduced alien species – ranging from cattle, pigs, goats, rats and dogs to plants and ants – that either prey on the eggs and young tortoises or damage or destroy their habitat.

C Today, only 11 of the original subspecies survive and of these, several are highly endangered. In 1989, work began on a tortoise-breeding centre just outside the town of Puerto Villamil on Isabela, dedicated to protecting the island’s tortoise populations. The centre’s captive-breeding programme proved to be extremely successful, and it eventually had to deal with an overpopulation problem.

D The problem was also a pressing one. Captive-bred tortoises can’t be reintroduced into the wild until they’re at least five years old and weigh at least 4,5 kilograms, at which point their size and weight – and their hardened shells – are sufficient to protect them from predators. But if people wait too long after that point, the tortoises eventually become too large to transport.

E For years, repatriation efforts were carried out in small numbers, with the tortoises carried on the backs of men over weeks of long, treacherous hikes along narrow trails. But in November 2010, the environmentalist and Galapagos National Park liaison officer Godfrey Merlin, a visiting private motor yacht captain and a helicopter pilot gathered around a table in a small cafe in Puerto Ayora on the island of Santa Cruz to work out more ambitious reintroduction. The aim was to use a helicopter to move 300 of the breeding centre’s tortoises to various locations close to Sierra Negra.

F This unprecedented effort was made possible by the owners of the 67-metre yacht White Cloud, who provided the Galapagos National Park with free use of their helicopter and its experienced pilot, as well as the logistical support of the yacht, its captain and crew. Originally an air ambulance, the yacht’s helicopter has a rear double door and a large internal space that’s well suited for cargo, so a custom crate was designed to hold up to 33 tortoises with a total weight of about 150 kilograms. This weight, together with that of the fuel, pilot and four crew, approached the helicopter’s maximum payload, and there were times when it was clearly right on the edge of the helicopter’s capabilities. During a period of three days, a group of volunteers from the breeding centre worked around the clock to prepare the young tortoises for transport. Meanwhile, park wardens, dropped off ahead of time in remote locations, cleared landing sites within the thick brush, cacti and lava rocks.

G Upon their release, the juvenile tortoises quickly spread out over their ancestral territory, investigating their new surroundings and feeding on the vegetation. Eventually, one tiny tortoise came across a fully grown giant who had been lumbering around the island for around a hundred years. The two stood side by side, a powerful symbol of the regeneration of an ancient species.

Questions 1-7
Reading passage 1 has seven paragraphs A-G. Choose the correct heading for each paragraph from the list of headings below.

List of headings
i The importance of getting the timing right
ii Young meets old
iii Developments to the disadvantage of tortoise populations
iv Planning a bigger idea
v Tortoises populate the islands
vi Carrying out a carefully prepared operation
vii Looking for a home for the islands’ tortoises
viii The start of the conservation project

1. Paragraph A
2. Paragraph B
3. Paragraph C
4. Paragraph D
5. Paragraph E
6. Paragraph F
7. Paragraph G

Questions 8-13
Complete the notes below. Choose ONE WORD ONLY from the passage for each answer.

The decline of the Galapagos tortoise
• Originally from mainland South America
• Numbers on Galapagos islands increased due to lack of predators
• 17th century: small numbers taken onto ships used by (8)………………………..
• 1790s: very large numbers taken onto whaling ships kept for (9)………………………and also used to produce (10)………………………….
• Hunted by (11)………………………..on the islands
• Habitat destruction: for the establishment of agriculture and by various (12)…………………………not native to the islands which also fed on baby tortoises and tortoises’ (13)……………………….

The Intersection of Health Sciences and Geography

A While many diseases that affect humans have been eradicated due to improvements in vaccinations and the availability of healthcare, there are still areas around the world where certain health issues are more prevalent. In a world that is far more globalised than ever before, people come into contact with one another through travel and living closer and closer to each other. As a result, super-viruses and other infections resistant to antibiotics are becoming more and more common.

B Geography can often play a very large role in the health concerns of certain populations. For instance, depending on where you live, you will not have the same health concerns as someone who lives in a different geographical region. Perhaps one of the most obvious examples of this idea is malaria-prone areas, which are usually tropical regions that foster a warm and damp environment in which the mosquitos that can give people this disease can grew. Malaria is much less of a problem in high-altitude deserts, for instance.

C In some countries, geographical factors influence the health and well-being of the population in very obvious ways. In many large cities, the wind is not strong enough to clear the air of the massive amounts of smog and pollution that cause asthma, lung problems, eyesight issues and more in the people who live there. Part of the problem is, of course, the massive number of cars being driven, in addition to factories that run on coal power. The rapid industrialisation of some countries in recent years has also led to the cutting down of forests to allow for the expansion of big cities, which makes it even harder to fight the pollution with the fresh air that is produced by plants.

D It is in situations like these that the field of health geography comes into its own. It is an increasingly important area of study in a world where diseases like polio are re-emerging, respiratory diseases continue to spread, and malaria-prone areas are still fighting to find a better cure. Health geography is the combination of, on the one hand, knowledge regarding geography and methods used to analyse and interpret geographical information, and on the other, the study of health, diseases and healthcare practices around the world. The aim of this hybrid science is to create solutions for common geography-based health problems. While people will always be prone to illness, the study of how geography affects our health could lead to the eradication of certain illnesses, and the prevention of others in the future. By understanding why and how we get sick, we can change the way we treat illness and disease specific to certain geographical locations.

E The geography of disease and ill health analyses the frequency with which certain diseases appear in different parts of the world, and overlays the data with the geography of the region, to see if there could be a correlation between the two. Health geographers also study factors that could make certain individuals or a population more likely to be taken ill with a specific health concern or disease, as compared with the population of another area. Health geographers in this field are usually trained as healthcare workers, and have an understanding of basic epidemiology as it relates to the spread of diseases among the population.

F Researchers study the interactions between humans and their environment that could lead to illness (such as asthma in places with high levels of pollution) and work to create a clear way of categorising illnesses, diseases and epidemics into local and global scales. Health geographers can map the spread of illnesses and attempt to identify the reasons behind an increase or decrease in illnesses, as they work to find a way to halt the further spread or re-emergence of diseases in vulnerable populations.

G The second subcategory of health geography is the geography of healthcare provision. This group studies the availability (of lack thereof) of healthcare resources to individuals and populations around the world. In both developed and developing nations there is often a very large discrepancy between the options available to people in different social classes, income brackets, and levels of education. Individuals working in the area of the geography of healthcare provision attempt to assess the levels of healthcare in the area (for instance, it may be very difficult for people to get medical attention because there is a mountain between their village and the nearest hospital). These researchers are on the frontline of making recommendations regarding policy to international organisations, local government bodies and others.

H The field of health geography is often overlooked, but it constitutes a huge area of need in the fields of geography and healthcare. If we can understand how geography affects our health no matter where in the world we are located, we can better treat disease, prevent illness, and keep people safe and well.

Questions 14-19
Reading passage 2 has eight sections A-H.

Which paragraph contains the following information? NB You may use any letter more than once.

14. an acceptance that not all diseases can be totally eliminated
15. examples of physical conditions caused by human behavior
16. a reference to classifying diseases on the basis of how far they extend gepgraphically
17. reasons why the level of access to healthcare can vary within a country
18. a description of healthy geography as a mixture of different academic fields
19. a description of the type of area where a particular illness is rare

Questions 20-26
Complete the sentences below. Choose ONE WORD ONLY from the passage for each answer.

20. Certain diseases have disappeared thanks to better…………………………….and healthcare.
21. Because there is more contact between people………………………….are losing their usefulness.
22. Disease causing……………………….are most likely to be found in hot, damp regions.
23. One cause of pollution is………………………….that burn a particular fuel.
24. The growth of cities often has an impact on nearby.
25. …………………………………is one disease that is growing after having been eradicated.
26. A physical barrier such as a……………………………can prevent people from reaching a hospital.

Music and the emotions

Why does music make us feel? On the one hand, music is a purely abstract art form, devoid of language or explicit ideas. And yet, even though music says little, it still manages to touch us deeply. When listening to our favourite songs, our body betrays all the symptoms of emotional arousal. The pupils in our eyes dilate, our pulse and blood pressure rise, the electrical conductance of our skin is lowered, and the cerebellum, a brain region associated with bodily movement, becomes strangely active. Blood is even re-directed to the muscles in our legs. In other words, sound stirs us at our biological roots.

A recent paper in Neuroscience by a research team in Montreal, Canada, marks an important step in repealing the precise underpinnings of ‘the potent pleasurable stimulus’ that is music. Although the study involves plenty of fancy technology, including functional magnetic resonance imaging (fMRI) and ligand-based positron emission tomography (PET) scanning, the experiment itself was rather straightforward. After screening 217 individuals who responded to advertisements requesting people who experience ‘chills’ to instrumental music, the scientists narrowed down the subject pool to ten. They then asked the subjects to bring in their playlist of favourite songs – virtually every genre was represented, from techno to tango – and played them the music while their brain activity was monitored. Because the scientists were combining methodologies (PET and fMRI), they were able to obtain an impressively exact and detailed portrait of music in the brain. The first thing they discovered is that music triggers the production of dopamine – a chemical with a key role in setting people’s moods – by the neurons (nerve cells) in both the dorsal and ventral regions of the brain. As these two regions have long been linked with the experience of pleasure, this finding isn’t particularly surprising.

What is rather more significant is the finding that the dopamine neurons in the caudate – a region of the brain involved in learning stimulus-response associations, and in anticipating food and other ‘reward’ stimuli – were at their most active around 15 seconds before the participants’ favourite moments in the music. The researchers call this the ‘anticipatory phase’ and argue that the purpose of this activity is to help us predict the arrival of our favourite part. The question, of course, is what all these dopamine neurons are up to. Why are they so active in the period preceding the acoustic climax? After all, we typically associate surges of dopamine with pleasure, with the processing of actual rewards. And yet, this cluster of cells is most active when the ‘chills’ have yet to arrive, when the melodic pattern is still unresolved.

One way to answer the question is to look at the music and not the neurons. While music can often seem (at least to the outsider) like a labyrinth of intricate patterns, it turns out that the most important part of every song or symphony is when the patterns break down, when the sound becomes unpredictable. If the music is too obvious, it is annoyingly boring, like an alarm clock. Numerous studies, after all, have demonstrated that dopamine neurons quickly adapt to predictable rewards. If we know what’s going to happen next, then we don’t get excited. This is why composers often introduce a key note in the beginning of a song, spend most of the rest of the piece in the studious avoidance of the pattern, and then finally repeat it only at the end. The longer we are denied the pattern we expect, the greater the emotional release when the pattern returns, safe and sound.

To demonstrate this psychological principle, the musicologist Leonard Meyer, in his classic book Emotion and Meaning in Music (1956), analysed the 5th movement of Beethoven’s String Quartet in C-sharp minor, Op. 131. Meyer wanted to show how music is defined by its flirtation with – but not submission to – our expectations of order. Meyer dissected 50 measures (bars) of the masterpiece, showing how Beethoven begins with the clear statement of a rhythmic and harmonic pattern and then, in an ingenious tonal dance, carefully holds off repeating it. What Beethoven does instead is suggest variations of the pattern. Me wants to preserve an element of uncertainty in his music, making our brains beg for the one chord he refuses to give us. Beethoven saves that chord for the end.

According to Meyer, it is the suspenseful tension of music, arising out of our unfulfilled expectations, that is the source of the music’s feeling. While earlier theories of music focused on the way a sound can refer to the real world of images and experiences – its ‘connotative’ meaning – Meyer argued that the emotions we find in music come from the unfolding events of the music itself. This ‘embodied meaning’ arises from the patterns the symphony invokes and then ignores. It is this uncertainty that triggers the surge of dopamine in the caudate, as we struggle to figure out what will happen next. We can predict some of the notes, but we can’t predict them all, and that is what keeps us listening, waiting expectantly for our reward, for the pattern to be completed.

Questions 27-31
Complete the summary below. Choose NO MORE THAN TWO WORDS from the passage for each answer.

The Montreal Study
Participants who were recruited for the study through advertisements had their brain activity monitored while listening to their favourite music. It was noted that the music stimulated the brain’s neurons to release a substance called (27)……………………….in two of the parts of the brain which are associated with feeling (28)………………………….. Researchers also observed that the neurons in the area of the brain called the (29)……………………..were particularly active just before the participants’ favourite moments in the music – the period known as the (30)……………………………….Activity in this part of the brain is associated with the expectation of reward stimuli such as (31)………………………….

Questions 32-36
Choose the correct letter A, B, C or D.

32. What point does the writer emphasise in the first paragraph?
A. how dramatically our reactions to music can vary
B. how intense our physical responses to music can be
C. how little we know about the way that music affects us
D. how much music can tell us about how our brains operate

33. What view of the Montreal study does the writer express in the second paragraph?
A. its aims were innovative
B. the approach was too simplistic
C. it produces some remarkably precise data
D. the technology used was unnecessarily complex

34. What does the writer find interesting about the results of the Montreal study?
A. the timing of participants’ neural responses to the music
B. the impact of the music on participants’ emotional state
C. the section of participants’ brains which was activated by the music
D. the type of music which has the strongest effect on the participants’ brains

35. Why does the writer refer to Meyer’s work on music and emotion?
A. to propose an original theory about the subject
B. to offer support for the findings of the Montreal study
C. to recommend the need for further research into the subject
D. to present a view which opposes that of the Montreal researchers

36. According to Leonard Meyer, what causes the listener’s emotional response to music?
A. the way the music evokes poignant memories in the listener
B. the association of certain musical chords with certain feelings
C. the listener’s sympathy with the composer’s intentions
D. the internal structure of the musical composition

Questions 37-40
Complete each sentence with the correct ending A-F below.

37. The Montreal researchers discovered that
38. Many studies have demonstrated that
39. Meyer’s analysis of Beethoven’s music shows that
40. Earlier theories of music suggested that

A. Our response to music depends on our initial emotional state.
B. neuron activity decreases if outcomes become predictable.
C. emotive music can bring to mind actual pictures and events.
D. experiences in our past can influence our emotional reaction to music.
E. emotive music delays giving listeners what they expect to hear.
F. neuron activity increases prior to key points in a musical piece.

The Risks Agriculture Faces In Developing Countries

A Two things distinguish food production from all other productive activities: first, every single person needs food each day and has a right to it; and second, it is hugely dependent on nature. These two unique aspects, one political, the other natural, make food production highly vulnerable and different from any other business. At the same time, cultural values are highly entrenched in food and agricultural systems worldwide.

B Farmers everywhere face major risks; including extreme weather, long-term climate change, and price volatility in input and product markets. However, smallholder farmers in developing countries must in addition deal with adverse environments, both natural, in terms of soil quality, rainfall, etc. and human, in terms of infrastructure, financial systems, markets, knowledge and technology. Counter-intuitively, hunger is prevalent among many smallholder farmers in the developing world.

C Participants in the online debate argued that our biggest challenge is to address the underlying causes of the agricultural system’s inability to ensure sufficient food for all, and they identified as drivers of this problem our dependency on fossil fuels and unsupportive government policies.

D On the question of mitigating the risks farmers face, most essayists called for greater state intervention. In his essay, Kanayo F. Nwanze, President of the International Fund for Agricultural Development, argued that governments can significantly reduce risks for farmers by providing basic services like roads to get produce more efficiently to markets, or water and food storage facilities to reduce losses. Sophia Murphy, senior advisor to the Institute for Agriculture and Trade Policy, suggested that the procurement and holding of stocks by governments can also help mitigate wild swings in food prices by alleviating uncertainties about market supply.

E Shenggen Fan, Director General of the International Food Policy Research Institute, held up social safety nets and public welfare programmes in Ethiopia, Brazil and Mexico as valuable ways to address poverty among farming families and reduce their vulnerability to agriculture shocks. However, some commentators responded that cash transfers to poor families do not necessarily translate into increased food security, as these programmes do not always strengthen food production or raise incomes. Regarding state subsidies for agriculture, Rokeya Kabir, Executive Director of Bangladesh Nari Progati Sangha, commented in her essay that these ‘have not compensated for the stranglehold exercised by private traders. In fact, studies show that sixty percent of beneficiaries of subsidies are not poor, but rich landowners and non-farmer traders.

F Nwanze, Murphy and Fan argued that private risk management tools, like private insurance, commodity futures markets, and rural finance can help small-scale producers mitigate risk and allow for investment in improvements. Kabir warned that financial support schemes often encourage the adoption of high-input agricultural practices, which in the medium term may raise production costs beyond the value of their harvests. Murphy noted that when futures markets become excessively financialised they can contribute to short-term price volatility, which increases farmers’ food insecurity. Many participants and commentators emphasised that greater transparency in markets is needed to mitigate the impact of volatility, and make evident whether adequate stocks and supplies are available. Others contended that agribusiness companies should be held responsible for paying for negative side effects.

G Many essayists mentioned climate change and its consequences for small-scale agriculture. Fan explained that in addition to reducing crop yields, climate change increases the magnitude and the frequency of extreme weather events, which increase smallholder vulnerability. The growing unpredictability of weather patterns increases farmers’ difficulty in managing weather-related risks. According to this author, one solution would be to develop crop varieties that are more resilient to new climate trends and extreme weather patterns. Accordingly, Pat Mooney, co-founder and executive director of the ETC Group, suggested that ‘if we are to survive climate change, we must adopt policies that let peasants diversify the plant and animal species and varieties/breeds that make up our menus.

H Some participating authors and commentators argued in favour of community- based and autonomous risk management strategies through collective action groups, co-operatives or producers’ groups. Such groups enhance market opportunities for small-scale producers, reduce marketing costs and synchronise buying and selling with seasonal price conditions. According to Murphy, ‘collective action offers an important way for farmers to strengthen their political and economic bargaining power, and to reduce their business risks. One commentator, Giel Ton, warned that collective action does not come as a free good. It takes time, effort and money to organise, build trust and to experiment. Others, like Marcel Vernooij and Marcel Beukeboom, suggested that in order to ‘apply what we already know’, all stakeholders, including business, government, scientists and civil society, must work together, starting at the beginning of the value chain.

I Some participants explained that market price volatility is often worsened by the presence of intermediary purchasers who, taking advantage of farmers’ vulnerability, dictate prices. One commentator suggested farmers can gain greater control over prices and minimise price volatility by selling directly to consumers. Similarly, Sonali Bisht, founder and advisor to the Institute of Himalayan Environmental Research and Education (INHERE), India, wrote that copipunity-supported agriculture, where consumers invest in local farmers by subscription and guarantee producers a fair price, is a risk-sharing model worth more attention. Direct food distribution systems not only encourage small-scale agriculture but also give consumers more control over the food they consume, she wrote.

Questions 1-3
Reading passage 1 has nine paragraphs A-I.

Which paragraph contains the following information?

1. a reference to characteristics that only apply to food production
2. a reference to challenges faced only by farmers in certain parts of the world
3. a reference to difficulties in bringing about co-operation between farmers

Questions 4-9
Look at the following statements (questions 4-9) and list of people below. Match each statement with the correct person A-G. NB You may use any letter more than once.

4. Financial assistance from the government does not always go to the farmers who most need it.
5. Farmers can benefit from collaborating as a group.
6. Financial assistance from the government can improve the standard of living of farmers.
7. Farmers may be helped if there is financial input by the same individuals who buy from them.
8. Governments can help to reduce variation in prices.
9. Improvements to infrastructure can have a major impact on risk for farmers.

List of people
A Kanayo F. Nwanze
B Sophia Murphy
C Shenggen Fan
D Rokeya Kabir
E Pat Mooney
F Giel Ton
G Sonali Bisht

Questions 10 and 11
Choose TWO letters A-E.

Which TWO problems are mentioned which affect farmers with small farms in developing countries?
A. lack of demand for locally produced food
B. lack of irrigation programmes
C. being unable to get insurance
D. the effects of changing weather patterns
E. having to sell their goods to intermediary buyers

Questions 12 and 13
Choose TWO letters A-E.

Which TWO actions are recommended for improving conditions for farmers?
A. reducing the size of food stocks
B. attempting to ensure that prices rise at certain times of the year
C. organizing co-operation between a wide range of interested parties
D. encouraging consumers to take a financial stake in farming
E. making customers aware of the reasons for changing food prices

The Lost City

A When the US explorer and academic Hiram Bingham arrived in South America in 1911, he was ready for what was to be the greatest achievement of his life: the exploration of the remote hinterland to the west of Cusco, the old capital of the Inca empire in the Andes mountains of Peru. His goal was to locate the remains of a city called Vitcos, the last capital of the Inca civilisation. Cusco lies on a high plateau at an elevation of more than 3,000 metres, and Bingham’s plan was to descend from this plateau along the valley of the Urubamba river, which takes a circuitous route down to the Amazon and passes through an area of dramatic canyons and mountain ranges.

B When Bingham and his team set off down the Urubamba in late July, they had an advantage over travellers who had preceded them: a track had recently been blasted down the valley canyon to enable rubber to be brought up by mules from the jungle. Almost all previous travellers had left the river at Ollantaytambo and taken a high pass across the mountains to rejoin the river lower down, thereby cutting a substantial corner, but also therefore never passing through the area around Machu Picchu.

C On 24 July they were a few days into their descent of the valley. The day began slowly, with Bingham trying to arrange sufficient mules for the next stage of the trek. His companions showed no interest in accompanying him up the nearby hill to see some ruins that a local farmer, Melchor Arteaga, had told them about the night before. The morning was dull and damp, and Bingham also seems to have been less than keen on the prospect of climbing the hill. In his book Lost City of the Incas, he relates that he made the ascent without having the least expectation that he would find anything at the top.

D Bingham writes about the approach in vivid style in his book. First, as he climbs up the hill, he describes the ever-present possibility of deadly snakes, ‘capable of making considerable springs when in pursuit of their prey’; not that he sees any. Then there’s a sense of mounting discovery as he comes across great sweeps of terraces, then a mausoleum, followed by monumental staircases and, finally, the grand ceremonial buildings of Machu Picchu. ‘It seemed like an unbelievable dream the sight held me spellbound ’, he wrote.

E We should remember, however, that Lost City of the Incas is a work of hindsight, not written until 1948, many years after his journey. His journal entries of the time reveal a much more gradual appreciation of his achievement. He spent the afternoon at the ruins noting down the dimensions of some of the buildings, then descended and rejoined his companions, to whom he seems to have said little about his discovery. At this stage, Bingham didn’t realise the extent or the importance of the site, nor did he realise what use he could make of the discovery.

F However, soon after returning it occurred to him that he could make a name for himself from this discovery. When he came to write the National Geographic magazine article that broke the story to the world in April 1913, he knew he had to produce a big idea. He wondered whether it could have been the birthplace of the very first Inca, Manco the Great, and whether it could also have been what chroniclers described as ‘the last city of the Incas’. This term refers to Vilcabamba the settlement where the Incas had fled from Spanish invaders in the 1530s. Bingham made desperate attempts to prove this belief for nearly 40 years. Sadly, his vision of the site as both the beginning and end of the Inca civilisation, while a magnificent one, is inaccurate. We now know, that Vilcabamba actually lies 65 kilometres away in the depths of the jungle.

G One question that has perplexed visitors, historians and archaeologists alike ever since Bingham, is why the site seems to have been abandoned before the Spanish Conquest. There are no references to it by any of the Spanish chroniclers – and if they had known of its existence so close to Cusco they would certainly have come in search of gold. An idea which has gained wide acceptance over the past few years is that Machu Picchu was a moya, a country estate built by an Inca emperor to escape the cold winters of Cusco, where the elite could enjoy monumental architecture and spectacular views. Furthermore, the particular architecture of Machu Picchu suggests that it was constructed at the time of the greatest of all the Incas, the emperor Pachacuti (1438-71). By custom, Pachacuti’s descendants built other similar estates for their own use, and so Machu Picchu would have been abandoned after his death, some 50 years before the Spanish Conquest.

Questions 14-20
Reading passage 2 has seven paragraphs A-G. Choose the correct heading for each paragraph from the list of headings below.

List of headings
i Different accounts of the same journey
ii Bingham gains support
iii A common belief
iv The aim of the trip
v A dramatic description
vi A new route
vii Bingham publishes his theory
viii Bingham’s lack of enthusiasm

14. Paragraph A
15. Paragraph B
16. Paragraph C
17. Paragraph D
18. Paragraph E
19. Paragraph F
20. Paragraph G

Questions 21-24
Do the following statements agree with the information given in reading passage 2?

TRUE                        if the statement agrees with the information
FALSE                      if the statement contradicts the information
NOT GIVEN          if there is no information on this

21. Bingham went to South America in search of an Inca city.
22. Bingham chose a particular route down the Urubamba valley because it was the most common route used by travelers.
23. Bingham understood the significance of Machu Picchu as soon as he saw it.
24. Bingham returned to Machu Picchu in order to find evidence to support his theory.

Questions 25 and 26
Complete the sentences below. Choose ONE WORD ONLY from the passage

25. The track that took Bingham down the Urubamba valley had been created for the transportation of……………..
26. Bingham found out about the ruins of Machu Picchu from a…………………………….in the Urubamba valley.

The Benefits Of Being Bilingual

A According to the latest figures, the majority of the world’s population is now bilingual or multilingual, having grown up speaking two or more languages. In the past, such children were considered to be at a disadvantage compared with their monolingual peers. Over the past few decades, however, technological advances have allowed researchers to look more deeply at how bilingualism interacts with and changes the cognitive and neurological systems, thereby identifying several clear benefits of being bilingual.

B Research shows that when a bilingual person uses one language, the other is active at the same time. When we hear a word, we don’t hear the entire word all at once: the sounds arrive in sequential order. Long before the word is finished, the brain’s language system begins to guess what that word might be. If you hear ‘can’, you will likely activate words like ‘candy’ and ‘candle’ as well, at least during the earlier stages of word recognition. For bilingual people, this activation is not limited to a single language; auditory input activates corresponding words regardless of the language to which they belong. Some of the most compelling evidence for this phenomenon, called ‘language co-activation’, comes from studying eye movements. A Russian-English bilingual asked to ‘pick up a marker’ from a set of objects would look more at a stamp than someone who doesn’t know Russian, because the Russian word for ‘stamp’, marka, sounds like the English word he or she heard, ‘marker’. In cases like this, language co-activation occurs because what the listener hears could map onto words in either language.

C Having to deal with this persistent linguistic competition can result in difficulties, however. For instance, knowing more than one language can cause speakers to name pictures more slowly, and can increase ‘tip-of-the-tongue states’, when you can almost, but not quite, bring a word to mind. As a result, the constant juggling of two languages creates a need to control how much a person accesses a language at any given time. For this reason, bilingual people often perform better on tasks that require conflict management. In the classic Stroop Task, people see a word and are asked to name the colour of the word’s font. When the colour and the word match (i., the word ‘red’ printed in red), people correctly name the colour more quickly than when the colour and the word don’t match (i., the word ‘red’ printed in blue). This occurs because the word itself (‘red’) and its font colour (blue) conflict. Bilingual people often excel at tasks such as this, which tap into the ability to ignore competing perceptual information and focus on the relevant aspects of the input. Bilinguals are also better at switching between two tasks; for example, when bilinguals have to switch from categorizing objects by colour (red or green) to categorizing them by shape (circle or triangle), they do so more quickly than monolingual people, reflecting better cognitive control when having to make rapid changes of strategy.

D It also seems that the neurological roots of the bilingual advantage extend to brain areas more traditionally associated with sensory processing. When monolingual and bilingual adolescents listen to simple speech sounds without any intervening background noise, they show highly similar brain stem responses. When researchers play the same sound to both groups in the presence of background noise, however, the bilingual listeners’ neural response is considerably larger, reflecting better encoding of the sound’s fundamental frequency, a feature of sound closely related to pitch perception.

E Such improvements in cognitive and sensory processing may help a bilingual person to process information in the environment, and help explain why bilingual adults acquire a third language better than monolingual adults master a second language. This advantage may be rooted in the skill of focussing on information about the new language while reducing interference from the languages they already know.

F Research also indicates that bilingual experience may help to keep the cognitive mechanisms sharp by recruiting alternate brain networks to compensate for those that become damaged during aging. Older bilinguals enjoy improved memory relative to monolingual people, which can lead to real-world health benefits. In a study of over 200 patients with Alzheimer’s disease, a degenerative brain disease, bilingual patients reported showing initial symptoms of the disease an average of five years later than monolingual patients. In a follow-up study, researchers compared the brains of bilingual and monolingual patients matched on the severity of Alzheimer’s symptoms. Surprisingly, the bilinguals’ brains had more physical signs of disease than their monolingual counterparts, even though their outward behaviour and abilities were the same. If the brain is an engine, bilingualism may help it to go farther on the same amount of fuel.

G Furthermore, the benefits associated with bilingual experience seem to start very early. In one study, researchers taught seven-month-old babies growing up in monolingual or bilingual homes that when they heard a tinkling sound, a puppet appeared on one side of a screen. Halfway through the study, the puppet began appearing on the opposite side of the screen. In order to get a reward, the infants had to adjust the rule they’d learned; only the bilingual babies were able to successfully learn the new rule. This suggests that for very young children, as well as for older people, navigating a multilingual environment imparts advantages that transfer far beyond language.

Questions 27-31

Complete the table below. Write NO MORE THAN TWO WORDS from the passage.

Test	Findings
Observing the (27)………………..of Russina-English bilingual people when asked to select certain objects	bilingual people engage both languages simultaneously a mechanism known as (28)…………………
A test called the (29)……………….focusing on naming colors	bilingual people are more able to handle tasks involving a skill called (30)………………….
A test involving switching between tasks	when changing strategies bilingual people have started (31)…………..

Questions 32-36
Do the following statements agree with the claims of the writer in reading passage 3>

YES                         if the statement agrees with the claims of the writer
NO                           if the statement contradicts the claims of the writer
NOT GIVEN        if it is impossible to say what the writer thinks about this

32. Attitudes towards bilingualism have changed in recent years.
33. Bilingual people are better than monolingual people at guessing correctly what words are before they are finished.
34. Bilingual people consistently name images faster than monolingual people.
35. Bilingual people’s brains process single sounds more efficiently than monolingual people in all situations.
36. Fewer bilingual people than monolingual people suffer from brain disease in old age.

Questions 37-40
Reading passage 3 has seven paragraphs A-G. Which paragraph contains the following information?

37. an example of how bilingual and monolingual people’s brains respond differently to a certain type of non-verbal auditory input
38. a demonstration of how a bilingual upbringing has benefits even before we learn to speak
39. a description of the process by which people identify words that they hear
40. reference to some negative consequences of being bilingual

Cork

Cork – the thick bark of the cork oak tree (Quercus suber) – is a remarkable material. It is tough, elastic, buoyant, and fire-resistant, and suitable for a wide range of purposes. It has also been used for millennia: the ancient Egyptians sealed then sarcophagi (stone coffins) with cork, while the ancient Greeks and Romans used it for anything from beehives to sandals.

And the cork oak itself is an extraordinary tree. Its bark grows up to 20 cm in thickness, insulating the tree like a coat wrapped around the trunk and branches and keeping the inside at a constant 20°C all year round. Developed most probably as a defence against forest fires, the bark of the cork oak has a particular cellular structure – with about 40 million cells per cubic centimetre – that technology has never succeeded in replicating. The cells are filled with air, which is why cork is so buoyant. It also has an elasticity that means you can squash it and watch it spring back to its original size and shape when you release the pressure.

Cork oaks grow in a number of Mediterranean countries, including Portugal, Spain, Italy, Greece and Morocco. They flourish in warm, sunny climates where there is a minimum of 400 millimetres of rain per year, and no more than 800 millimetres. Like grape vines, the trees thrive in poor soil, putting down deep root in search of moisture and nutrients. Southern Portugal’s Alentejo region meets all of these requirements, which explains why, by the early 20th century, this region had become the world’s largest producer of cork, and why today it accounts for roughly half of all cork production around the world.

Most cork forests are family-owned. Many of these family businesses, and indeed many of the trees themselves, are around 200 years old. Cork production is, above all, an exercise in patience. From the planting of a cork sapling to the first harvest takes 25 years, and a gap of approximately a decade must separate harvests from an individual tree. And for top- quality cork, it’s necessary to wait a further 15 or 20 years. You even have to wait for the right kind of summer’s day to harvest cork. If the bark is stripped on a day when it’s too cold – or when the air is damp – the tree will be damaged.

Cork harvesting is a very specialised profession. No mechanical means of stripping cork bark has been invented, so the job is done by teams of highly skilled workers. First, they make vertical cuts down the bark using small sharp axes, then lever it away in pieces as large as they can manage. The most skilful cork- strippers prise away a semi-circular husk that runs the length of the trunk from just above ground level to the first branches. It is then dried on the ground for about four months, before being taken to factories, where it is boiled to kill any insects that might remain in the cork. Over 60% of cork then goes on to be made into traditional bottle stoppers, with most of the remainder being used in the construction trade, Corkboard and cork tiles are ideal for thermal and acoustic insulation, while granules of cork are used in the manufacture of concrete.

Recent years have seen the end of the virtual monopoly of cork as the material for bottle stoppers, due to concerns about the effect it may have on the contents of the bottle. This is caused by a chemical compound called 2,4,6-trichloroanisole (TCA), which forms through the interaction of plant phenols, chlorine and mould. The tiniest concentrations – as little as three or four parts to a trillion – can spoil the taste of the product contained in the bottle.

The result has been a gradual yet steady move first towards plastic stoppers and, more recently, to aluminium screw caps. These substitutes are cheaper to manufacture and, in the case of screw caps, more convenient for the user.

The classic cork stopper does have several advantages, however. Firstly, its traditional image is more in keeping with that of the type of high quality goods with which it has long been associated. Secondly – and very importantly – cork is a sustainable product that can be recycled without difficulty. Moreover, cork forests are a resource which support local biodiversity, and prevent desertification in the regions where they are planted. So, given the current concerns about environmental issues, the future of this ancient material once again looks promising.

Questions 1-5
Do the following statements agree with the information given in Reading Passage? In boxes 1-5 on your answer sheet, write

TRUE                              if the statement agrees with the information
FALSE                            if the statement contradicts the information
NOT GIVEN                 if there is no information on this

1. The cork oak has the thickest bark of any living tree.
2. Scientists have developed a synthetic cork with the same cellular structure as natural cork.
3. Individual cork oak trees must be left for 25 years between the first and second harvest.
4. Cork bark should be stripped in dry atmospheric conditions.
5. The only way to remove the bark from cork oak trees is by hand.

Questions 6-13
Complete the notes below. Choose ONE WORD ONLY from the passage for each answer.

Comparison of aluminium screw caps and cork bottle stoppers
Advantages of aluminium screw caps
• do not affect the (6)…………………………………of the bottle contents
• are (7)………………………….. to produce
• are (8)……………………………….. to use
Advantages of cork bottle stoppers
• suit the (9)……………………………. of quality products
• made from a (10)………………………. material
• easily (11)……………………………..
• cork forests aid (12)……………………….
• cork forests stop (13)…………………………….happening

Collecting As A Hobby

Collecting must one of the varied of human activities and its one that many of us psychologists find fascinating. Many forms of collecting have been dignified with a technical name: an archtophilist collects teddy bears, a philatelist collects postage stamps, and a deltiologist collects postcards. Amassing hundreds or even thousands of postcards, chocolate wrappers or whatever, takes time, energy and money that could surely to much more productive use. And yet there are millions of collectors around the world. Why do they do it?

There are the people who collect because they want to make money – this could be called an instrumental reason for collecting; that is, collecting as a means to an end. They’ll look for, say, antiques that they can buy cheaply and expect to be able to sell at a profit. But there may well be a psychological element, too – buying cheap and selling dear can give the collector a sense of triumph. And as selling online is so easy, more and more people are joining in.

Many collectors collect to develop their social life, attending meetings of a group of collectors and exchanging information on items. This is a variant on joining a bridge club or a gym, and similarly brings them into contact with like-minded people.

Another motive for collecting is the desire to find something special, or a particular example of the collected item, such as a rare early recording by a particular singer. Some may spend their whole lives in a hunt for this. Psychologically, this can give a purpose to a life that otherwise feels aimless. There is a danger, though, that if the individual is ever lucky enough to find what they’re looking for, rather than celebrating their success, they may feel empty, now that the goal that drove them on has gone.

If you think about collecting postage stamps another potential reason for it – Or, perhaps, a result of collecting is its educational value. Stamp collecting opens a window to other countries, and to the plants, animals, or famous people shown on their stamps. Similarly, in the 19th century, many collectors amassed fossils, animals and plants from around the globe, and their collections provided a vast amount of information about the natural world. Without those collections, our understanding would be greatly inferior to what it is.

In the past – and nowadays, too, though to a lesser extent – a popular form of collecting, particularly among boys and men, was trainspotting. This might involve trying to see every locomotive of a particular type, using published data that identifies each one, and ticking off each engine as it is seen. Trainspotters exchange information, these days often by mobile phone, so they can work out where to go to, to see a particular engine. As a by-product, many practitioners of the hobby become very knowledgeable about railway operations, or the technical specifications of different engine types.

Similarly, people who collect dolls may go beyond simply enlarging their collection, and develop an interest in the way that dolls are made, or the materials that are used. These have changed over the centuries from the wood that was standard in 16th century Europe, through the wax and porcelain of later centuries, to the plastics of today’s dolls. Or collectors might be inspired to study how dolls reflect notions of what children like, or ought to like.

Not all collectors are interested in learning from their hobby, though, so what we might call a psychological reason for collecting is the need for a sense of control, perhaps as a way of dealing with insecurity. Stamp collectors, for instance, arrange their stamps in albums, usually very neatly, organising their collection according to certain commonplace principles-perhaps by country in alphabetical order, or grouping stamps by what they depict -people, birds, maps, and so on.

One reason, conscious or not, for what someone chooses to collect is to show the collector’s individualism. Someone who decides to collect something as unexpected as dog collars, for instance, may be conveying their belief that they must be interesting themselves. And believe it or not, there is at least one dog collar museum in existence, and it grew out of a personal collection.

Of course, all hobbies give pleasure, but the common factor in collecting is usually passion: pleasure is putting it far too mildly. More than most other hobbies, collecting can be totally engrossing, and can give a strong sense of personal fulfilment. To non-collectors it may appear an eccentric, if harmless, way of spending time, but potentially, collecting has a lot going for it.

Questions 14-21
Complete the sentences below. Write ONE WORD ONLY from the passage.

14. The writer mentions collecting………………….as an example of collecting in order to make money.
15. Collectors may get a feeling of ……………………………..from buying and selling items.
16. Collectors’ clubs provide opportunities to share…………………………
17. Collectors’ clubs offer……………………………with people who have similar interests.
18. Collecting sometimes involves a life-long………………………….for a special item.
19. Searching for something particular may prevent people from feeling their life is completely…………………..
20. Stamp collection may be………………………because it provides facts about different countries.
21. ……………………………….tends to be mostly a male hobby.

Questions 22-26
Do the following statements agree with the information given in the passage. In boxes 22-26 write

TRUE                         if the statement agrees with the information
FALSE                       if the statement contradicts the information
NOT GIVEN            if there is no information on this

22. The number of people buying dolls has grown over the centuries.
23. Sixteenth century European dolls were normally made of wax and porcelain.
24. Arranging a stamp collection by the size of the stamps is less common than other methods.
25. Someone who collects unusual objects may want others to think he or she is also unusual.
26. Collecting gives a feeling that other hobbies are unlikely to inspire.

What’s the purpose of gaining knowledge?

A ‘I would found an institution where any person can find instruction in any subject’ That was the founders motto for Cornell University, and it seems an apt characterization of the different university, also in the USA, where I currently teach philosophy. A student can prepare for a career in resort management, engineering, interior design, accounting, music, law enforcement, you name it. But what would the founders of these two institutions have thought of a course called Arson for Profit’? I kid you not: we have it on the books. Any undergraduates who have met the academic requirements can sign up for the course in our program in ‘fire science’.

B Naturally, the course is intended for prospective arson investigators, who can learn all the tricks of the trade for detecting whether a fire was deliberately set, discovering who did it, and establishing a chain of evidence for effective prosecution in a court of law. But wouldn’t this also be the perfect course for prospective arsonists to sign up for? My point is not to criticize academic programs in fire science: they are highly welcome as part of the increasing professionalization of this and many other occupations. However, it’s not unknown for a firefighter to torch a building. This example suggests how dishonest and illegal behavior, with the help of higher education, can creep into every aspect of public and business life.

C I realized this anew when I was invited to speak before a class in marketing, which is another of our degree programs. The regular instructor is a colleague who appreciates the kind of ethical perspective I can bring as a philosopher. There are endless ways I could have approached this assignment, but I took my cue from the title of the course: ‘Principles of Marketing’. It made me think to ask the students, ‘Is marketing principled?’ After all, a subject matter can have principles in the sense of being codified, having rules, as with football or chess, without being principled in the sense of being ethical. Many of the students immediately assumed that the answer to my question about marketing principles was obvious: no. Just look at the ways in which everything under the sun has been marketed; obviously it need not be done in a principled (=ethical) fashion.

D Is that obvious? I made the suggestion, which may sound downright crazy in light of the evidence, that perhaps marketing is by definition principled. My inspiration for this judgement is the philosopher Immanuel Kant, who argued that any body of knowledge consists of an end (or purpose) and a means.

E Let us apply both the terms ‘means’ and ‘end’ to marketing. The students have signed up for a course in order to learn how to market effectively. But to what end? There seem to be two main attitudes toward that question. One is that the answer is obvious: the purpose of marketing is to sell things and to make money. The other attitude is that the purpose of marketing is irrelevant: Each person comes to the program and course with his or her own plans, and these need not even concern the acquisition of marketing expertise as such. My proposal, which I believe would also be Kant’s, is that neither of these attitudes captures the significance of the end to the means for marketing. A field of knowledge or a professional endeavor is defined by both the means and the end;hence both deserve scrutiny. Students need to study both how to achieve X, and also what X is.

F It is at this point that ‘Arson for Profit’ becomes supremely relevant. That course is presumably all about means: how to detect and prosecute criminal activity. It is therefore assumed that the end is good in an ethical sense. When I ask fire science students to articulate the end, or purpose, of their field, they eventually generalize to something like, ‘The safety and welfare of society,’ which seems right. As we have seen, someone could use the very same knowledge of means to achieve a much less noble end, such as personal profit via destructive, dangerous, reckless activity. But we would not call that firefighting. We have a separate word for it: arson. Similarly, if you employed the ‘principles of marketing’ in an unprincipled way, you would not be doing marketing. We have another term for it: fraud. Kant gives the example of a doctor and a poisoner, who use the identical knowledge to achieve their divergent ends. We would say that one is practicing medicine, the other, murder.

Questions 27-32
Reading passage 3 has six sections A-F. Choose the correct heading for each section from the list of headings below.

List of headings
i Courses that require a high level of commitment
ii A course title with two meanings
iii The equal importance of two key issues
iv Applying a theory in an unexpected context
v The financial benefits of studying
vi A surprising course title
vii Different names for different outcomes
viii The possibility of attracting the wrong kind of student

27. Section A
28. Section B
29. Section C
30. Section D
31. Section E
32. Section F

Questions 33-36
Complete the summary below. Write NO MORE THAN TWO WORDS from the passage.

The ‘Arson for Profit’ course
This is a university course intended for students who are undergraduates and who are studying (33)…………………….. The expectation is that they will become (34)………………………speacialising in arson. The course will help them to detect cases of arson and find (35)…………………………. of criminal intent, leading to successful (36)…………………………. in the courts.

Questions 37-40
Do the following statements agree with the views of the reading passage?

YES                            if the statement agrees with the views of the writer
NO                              if the statement contradicts the views of the writer
NOT GIVEN           if it is impossible to say what the writer thinks about this

37. It is difficult to attract students onto courses that do no focus on a career.
38. The ‘Arson for Profit’ course would be useful for people intending to set fire to buildings.
39. Fire science are too academic to help people to be good at the job of firefighting.
40. The writer’s fire science students provided a detailed definition of the purpose of their studies.

The Phoenicians: an almost forgotten people

The Phoenicians inhabited the region of modern Lebanon and Syria from about 3000 BC. They became the greatest traders of the pre-classical world, and were the first people to establish a large colonial network. Both of these activities were based on seafaring, an ability the Phoenicians developed from the example of their maritime predecessors, the Minoans of Crete.

An Egyptian narrative of about 1080 BC, the Story of Wen-Amen, provides an insight into the scale of their trading activity. One of the characters is Wereket-El, a Phoenician merchant living at Tanis in Egypt’s Nile delta. As many as 50 ships carry out his business, plying back and forth between the Nile and the Phoenician port of Sidon.

The most prosperous period for Phoenicia was the 10th century BC, when the surrounding region was stable. Hiram, the king of the Phoenician city of Tyre, was an ally and business partner of Solomon, King of Israel. For Solomon’s temple in Jerusalem, Hiram provided craftsmen with particular skills that were needed for this major construction project. He also supplied materials – particularly timber, including cedar from the forests of Lebanon. And the two kings went into trade in partnership. They sent out Phoenician vessels on long expeditions (of up to three years for the return trip) to bring back gold, sandalwood, ivory, monkeys and peacocks from Ophir. This is an unidentified place, probably on the east coast of Africa or the west coast of India.

Phoenicia was famous for its luxury goods. The cedar wood was not only exported as top-quality timber for architecture and shipbuilding. It was also carved by the Phoenicians, and the same skill was adapted to even more precious work in ivory. The rare and expensive dye for cloth, Tyrian purple, complemented another famous local product, fine linen. The metalworkers of the region, particularly those working in gold, were famous. Tyre and Sidon were also known for their glass.

These were the main products which the Phoenicians exported. In addition, as traders and middlemen, they took a commission on a much greater range of precious goods that they transported from elsewhere.

The extensive trade of Phoenicia required much book-keeping and correspondence, and it was in the field of writing that the Phoenicians made their most lasting contribution to world history. The scripts in use in the world up to the second millennium BC (in Egypt, Mesopotamia or China) all required the writer to learn a large number of separate characters – each of them expressing either a whole word or an element of its meaning. By contrast, the Phoenicians, in about 1500 BC, developed an entirely new approach to writing. The marks made (with a pointed tool called a stylus, on damp clay) now attempted to capture the sound of a word. This required an alphabet of individual letters.

The trading and seafaring skills of the Phoenicians resulted in a network of colonies, spreading westwards through the Mediterranean. The first was probably Citium, in Cyprus, established in the 9th century BC. But the main expansion came from the 8th century BC onwards, when pressure from Assyria to the east disrupted the patterns of trade on the Phoenician coast.

Trading colonies were developed on the string of islands in the centre of the Mediterranean – Crete, Sicily, Malta, Sardinia, Ibiza – and also on the coast of north Africa. The African colonies clustered in particular around the great promontory which, with Sicily opposite, forms the narrowest channel on the main Mediterranean sea route. This is the site of Carthage.

Carthage was the largest of the towns founded by the Phoenicians on the north African coast, and it rapidly assumed a leading position among the neighbouring colonies. The traditional date of its founding is 814 BC, but archaeological evidence suggests that it was probably settled a little over a century later.

The subsequent spread and growth of Phoenician colonies in the western Mediterranean, and even out to the Atlantic coasts of Africa and Spain, was as much the achievement of Carthage as of the original Phoenician trading cities such as Tyre and Sidon. But no doubt links were maintained with the homeland, and new colonists continued to travel west.

From the 8th century BC, many of the coastal cities of Phoenicia came under the control of a succession of imperial powers, each of them defeated and replaced in the region by the next: first the Assyrians, then the Babylonians, Persians and Macedonian Greeks. In 64 BC, the area of Phoenicia became part of the Roman province of Syria. The Phoenicians as an identifiable people then faded from history, merging into the populations of modern Lebanon and northern Syria.

Questions 1-8
Complete the sentences below. Choose ONE WORD ONLY from the passage for each answer.

The Phoenician’s trading activities
1. The Phoenicians’ skill at……………………………….helped them to trade.
2. In an ancient story, a…………………………………..from Phoenicia, who lived in Egypt, owned 50 ships.
3. A king of Israel built a…………………………………….using supplies from Phoenicia.
4. Phoenicia supplied Solomon with skilled…………………………….
5. The main material that Phoenicia sent to Israel was……………………………
6. The kings of Phoenicia and Israel formed a business………………………………….in order to carry out trade.
7. Phoenicians carved………………………………………., as well as cedar.
8. The Phoenicians also earned a………………………………………. for shipping goods.

Questions 9-13
Do the following statements agree with the information given in Reading Passage 1?

TRUE                             if the statement agrees with the information
FALSE                           if the statement contradicts the information
NOT GIVEN                if there is no information on this

9 Problems with Assyria led to the establishment of a number of Phoenician colonies.
10 Carthage was an enemy town which the Phoenicians won in battle.
11 Phoenicians reached the Atlantic ocean.
12 Parts of Phoenicia were conquered by a series of empires.
13 The Phoenicians welcomed Roman control of the area.

The Hollywood Film Industry

A This chapter examines the ‘Golden Age’ of the Hollywood film studio system and explores how a particular kind of filmmaking developed during this period in US film history. It also focuses on the two key elements which influenced the emergence of the classic Hollywood studio system: the advent of sound and the business ideal of vertical integration. In addition to its historical interest, inspecting the growth of the studio system may offer clues regarding the kinds of struggles that accompany the growth of any new medium. It might, in fact, be intriguing to examine which changes occurred during the growth of the Hollywood studio, and compare those changes to contemporary struggles in which production companies are trying to define and control emerging industries, such as online film and interactive television.

B The shift of the industry away from ‘silent’ films began during the late 1920s. Warner Bros.’ 1927 film The Jazz Singer was the first to feature synchronized speech, and with it came a period of turmoil for the industry. Studios now had proof that ‘talkie’ films would make them money, but the financial investment this kind of filmmaking would require, from new camera equipment to new projection facilities, made the studios hesitant to invest at first. In the end, the power of cinematic sound to both move audiences and enhance the story persuaded studios that talkies were worth investing in. Overall, the use of sound in film was well-received by audiences, but there were still many technical factors to consider. Although full integration of sound into movies was complete by 1930, it would take somewhat longer for them to regain their stylistic elegance and dexterity. The camera now had to be encased in a big, clumsy, unmoveable soundproof box. In addition, actors struggled, having to direct their speech to awkwardly-hidden microphones in huge plants, telephones or even costumes.

C Vertical integration is the other key component in the rise of the Hollywood studio system. The major studios realized they could increase their profits by handling each stage of a film’s life: production (making the film), distribution (getting the film out to people) and exhibition (owning the theaters in major cities where films were shown first). Five studios, ‘The Big Five’, worked to achieve vertical integration through the late 1940s, owning vast real estate on which to construct elaborate sets. In addition, these studios set the exact terms of films’ release dates and patterns. Warner Bros., Paramount, 20th Century Fox, MGM and RKO formed this exclusive club. ‘The Little Three’ studios – Universal, Columbia and United Artists – also made pictures, but each lacked one of the crucial elements of vertical integration. Together these eight companies operated as a mature oligopoly, essentially running the entire market.

D During the Golden Age, the studios were remarkably consistent and stable enterprises, due in large part to long-term management heads – the infamous ‘movie moguls’ who ruled their kingdoms with iron fists. At MGM, Warner Bros, and Columbia, the same men ran their studios for decades. The rise of the studio system also hinges on the treatment of stars, who were constructed and exploited to suit a studio’s image and schedule. Actors were bound up in seven-year contracts to a single studio, and the studio boss generally held all the options. Stars could be loaned out to other production companies at any time. Studio bosses could also force bad roles on actors, and manipulate every single detail of stars’ images with their mammoth in-house publicity departments. Some have compared the Hollywood studio system to a factory, and it is useful to remember that studios were out to make money first and art second.

E On the other hand, studios also had to cultivate flexibility, in addition to consistent factory output. Studio heads realized that they couldn’t make virtually the same film over and over again with the same cast of stars and still expect to keep turning a profit. They also had to create product differentiation. Examining how each production company tried to differentiate itself has led to loose characterizations of individual studios’ styles. MGM tended to put out a lot of all-star productions while Paramount excelled in comedy and Warner Bros, developed a reputation for gritty social realism. 20th Century Fox forged the musical and a great deal of prestige biographies, while Universal specialized in classic horror movies.

F In 1948, struggling independent movie producers and exhibitors finally triumphed in their battle against the big studios’ monopolistic behavior. In the United States versus Paramount federal decree of that year, the studios were ordered to give up their theaters in what is commonly referred to as ‘divestiture’ – opening the market to smaller producers. This, coupled with the advent of television in the 1950s, seriously compromised the studio system’s influence and profits. Hence, 1930 and 1948 are generally considered bookends to Hollywood’s Golden Age.

Questions 14-19
Reading Passage 2 has six paragraphs, A-F. Choose the correct heading for each paragraph from the list of headings below.

List of Headings
i The power within each studio
ii The movie industry adapts to innovation
iii Contrasts between cinema and other media of the time
iv The value of studying Hollywood’s Golden Age
v Distinguishing themselves from the rest of the market
vi A double attack on film studios’ power
vii Gaining control of the industry
viii The top movies of Hollywood’s Golden Age

14 Paragraph A
15 Paragraph B
16 Paragraph C
17 Paragraph D
18 Paragraph E
19 Paragraph F

Questions 20-23
Do the following statements agree with the information given in Reading Passage 2?

TRUE                            if the statement agrees with the information
FALSE                          if the statement contradicts the information
NOT GIVEN               if there is no information on this

20 After The Jazz Singer came out, other studios immediately began making movies with synchronized sound.
21 There were some drawbacks to recording movie actors’ voices in the early 1930s.
22 There was intense competition between actors for contracts with the leading studios.
23 Studios had total control over how their actors were perceived by the public.

Questions 24-26
Complete the summary below. Choose NO MORE THAN TWO WORDS from the passage for each answer.

THE HOLLYWOOD STUDIOS
Throughout its Golden Age, the Hollywood movie industry was controlled by a handful of studios. Using a system known as (24)……………………………… , the biggest studios not only made movies, but handled their distribution and then finally showed them in their own theaters. These studios were often run by autocratic bosses – men known as (25)………………………………… , who often remained at the head of organisations for decades. However, the domination of the industry by the leading studios came to an end in 1948, when they were forced to open the market to smaller producers – a process known as (26)…………………………

Left or right?

A Creatures across the animal kingdom have a preference for one foot, eye or even antenna. The cause of this trait, called lateralisation, is fairly simple: one side of the brain, which generally controls the opposite side of the body, is more dominant than the other when processing certain tasks. This does, on some occasions, let the animal down: such as when a toad fails to escape from a snake approaching from the right, just because its right eye is worse at spotting danger than its left. So why would animals evolve a characteristic that seems to endanger them?

B For many years it was assumed that lateralisation was a uniquely human trait, but this notion rapidly fell apart as researchers started uncovering evidence of lateralisation in all sorts of animals. For example, in the 1970s, Lesley Rogers, now at the University of New England in Australia, was studying memory and learning in chicks. She had been injecting a chemical into chicks’ brains to stop them learning how to spot grains of food among distracting pebbles, and was surprised to observe that the chemical only worked when applied to the left hemisphere of the brain. That strongly suggested that the right side of the chicks brain played little or no role in the learning of such behaviours. Similar evidence appeared in songbirds and rats around the same time, and since then, researchers have built up an impressive catalogue of animal lateralisation.

C In some animals, lateralisation is simply a preference for a single paw or foot, while in others it appears in more general patterns of behaviour. The left side of most vertebrate brains, for example, seems to process and control feeding. Since the left hemisphere processes input from the right side of the body, that means animals as diverse as fish, toads and birds are more likely to attack prey or food items viewed with their right eye. Even humpback whales prefer to use the right side of their jaws to scrape sand eels from the ocean floor.

D Genetics plays a part in determining lateralisation, but environmental factors have an impact too. Rogers found that a chicks lateralisation depends on whether it is exposed to light before hatching from its egg – if it is kept in the dark during this period, neither hemisphere becomes dominant. In 2004, Rogers used this observation to test the advantages of brain bias in chicks faced with the challenge of multitasking. She hatched chicks with either strong or weak lateralisation, then presented the two groups with food hidden among small pebbles and the threatening shape of a fake predator flying overhead. As predicted, the birds incubated in the light looked for food mainly with their right eye, while using the other to check out the predator. The weakly-lateralised chicks, meanwhile, had difficulty performing these two activities simultaneously.

E Similar results probably hold true for many other animals. In 2006, Angelo Bisazza at the University of Padua set out to observe the differences in feeding behaviour between strongly-lateralised and weakly-lateralised fish. He found that strongly-lateralised individuals were able to feed twice as fast as weakly-lateralised ones when there was a threat of a predator looming above them. Assigning different jobs to different brain halves may be especially advantageous for animals such as birds or fish, whose eyes are placed on the sides of their heads. This enables them to process input from each side separately, with different tasks in mind.

F And what of those animals who favour a specific side for almost all tasks? In 2009, Maria Magat and Culum Brown at Macquarie University in Australia wanted to see if there was general cognitive advantage in lateralisation. To investigate, they turned to parrots, which can be either strongly right- or left-footed, or ambidextrous (without dominance). The parrots were given the intellectually demanding task of pulling a snack on a string up to their beaks, using a co-ordinated combination of claws and beak. The results showed that the parrots with the strongest foot preferences worked out the puzzle far more quickly than their ambidextrous peers.

G A further puzzle is why are there always a few exceptions, like left-handed humans, who are wired differently from the majority of the population? Giorgio Vallortigara and Stefano Ghirlanda of Stockholm University seem to have found the answer via mathematical models. These have shown that a group of fish is likely to survive a shark attack with the fewest casualties if the majority turn together in one direction while a very small proportion of the group escape in the direction that the predator is not expecting.

H This imbalance of lateralisation within populations may also have advantages for individuals. Whereas most co-operative interactions require participants to react similarly, there are some situations – such as aggressive interactions – where it can benefit an individual to launch an attack from an unexpected quarter. Perhaps this can partly explain the existence of left-handers in human societies. It has been suggested that when it comes to hand-to-hand fighting, left-handers may have the advantage over the right-handed majority. Where survival depends on the element of surprise, it may indeed pay to be different.

Questions 27-30
Complete each sentence with the correct ending, A-F, below.

27 In the 1970s, Lesley Rogers discovered that
28 Angelo Bisazza’s experiments revealed that
29 Magat and Brown’s studies show that
30 Vallortigara and Ghirlanda’s research findings suggest that

A lateralisation is more common in some species than in others.
B it benefits a population if some members have a different lateralisation than the majority.
C lateralisation helps animals do two things at the same time.
D lateralisation is not confined to human beings.
E the greater an animal’s lateralisation, the better it is at problem-solving.
F strong lateralisation may sometimes put groups of animals in danger.

Questions 31-35
Complete the summary below. Choose ONE WORD ONLY from the passage for each answer.

Lesley Rogers’ 2004 Experiment
Lateralisation is determined by both genetic and (31)………………………… influences. Rogers found that chicks whose eggs are given (32)……………………………. during the incubation period tend to have a stronger lateralisation. Her 2004 experiment set out to prove that these chicks were better at (33)………………………………than weakly lateralized chicks. As expected, the strongly lateralised birds in the experiment were more able to locate (34)……………………… using their right eye, while using their left eye to monitor an imitation (35)……………………………located above them.

Questions 36-40
Reading Passage 3 has eight paragraphs, A-H.

Which paragraph contains the following information?

36. description of a study which supports another scientist’s findings
37. the suggestion that a person could gain from having an opposing lateralisation to most of the population
38. reference to the large amount of knowledge of animal lateralisation that has accumulated
39. research findings that were among the first to contradict a previous belief
40. a suggestion that lateralisation would seem to disadvantage animals