PASSAGE 2 – Questions 11-20

Many trees in the Brackham area were brought down in the terrible storms that March. The town itself lost two great lime trees from the former market square. The disappearance of such prominent features had altered the appearance of the town center entirely, to the annoyance of its more conservative inhabitants.

Among the annoyed, under more normal circumstances, would have been Chief Inspector Douglas Pelham, head of the local police force. But at the height of that week’s storm, when the wind brought down even the mature walnut tree in his garden, Pelham had in fact been in no fit state to notice. A large and healthy man, he had for the first time in his life been seriously ill with an attack of bronchitis.

When he first complained of an aching head and tightness in his chest, his wife, Molly, had tried to persuade him to go to the doctor. Convinced that the police force could not do without him, he had, as usual, ignored her and attempted to carry on working. Predictably, though he wouldn't have listened to anyone who tried to tell him so, this had the effect of fogging his memory and shortening his temper.

It was only when his colleague, Sergeant Lloyd, took the initiative and drove him to the doctor's door that he finally gave in. By that time, he didn't have the strength left to argue with her. In no time at all, she was taking him along to the chemist's to get his prescribed antibiotics and then home to his unsurprised wife who sent him straight to bed.

When Molly told him, on the Thursday morning, that the walnut tree had been brought down during the night, Pelham hadn't been able to take it in. On Thursday evening, he had asked weakly about damage to the house, groaned thankfully when he heard there was none, and pulled the sheets over his head.

It wasn't until Saturday, when the antibiotics took effect, his temperature dropped and he got up, that he realized with a shock that the loss of the walnut tree had made a permanent difference to the appearance of the living-room. The Pelhams' large house stood in a sizeable garden. It had not come cheap, but even so Pelham had no regrets about buying it. The leafy garden had created an impression of privacy. Now, though, the storm had changed his outlook.

Previously, the view from the living room had featured the handsome walnut tree. This had not darkened the room because there was also a window on the opposite wall, but it had provided interesting patterns of light and shade that disguised the true state of the worn furniture that the family had brought with them from their previous house.

With the tree gone, the room seemed cruelly bright, its worn furnishings exposed in all their shabbiness. And the view from the window didn't bear looking at. The tall house next door, previously hidden by the tree, was now there, dominating the outlook with its unattractive purple bricks and external pipes. It seemed to have a great many upstairs windows, all of them watching the Pelhams' every movement.

'Doesn't it look terrible?' Pelham croaked to his wife.
But Molly, standing in the doorway, sounded more pleased than dismayed. 'That's what I've been telling you ever since we came here. We have to buy a new sofa, whatever it costs.'

Câu 11: Why were some people in Brackham annoyed after the storm?

PASSAGE 3 – Questions 21-30

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 tasselled ears was presumed to have died out in Britain at least 6,000 years before, 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, a mounted hunter, a speckled cat with tasselled ears. Were it not for 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. [A] 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. [B] 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. [C] Large-scale rewilding is happening almost everywhere — except Britain. [D]

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.

Câu 21: What did the 2006 discovery of the animal bone reveal about the lynx?

PASSAGE 4 – Questions 31-40

Music and the emotions

Neuroscientist Jonah Lehrer considers the emotional power of music
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 Nature Neuroscience by a research team in Montreal, Canada, marks an important step in revealing 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.

[A] 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. [B] 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. [C] The longer we are denied the pattern we expect, the greater the emotional release when the pattern returns, safe and sound. [D]

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 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.

Câu 31: What point does the writer emphasize in the first paragraph?