听力题SECTION 1

听力题SECTION 4 There are ten questions below

听力题SECTION 4 There are ten questions below， Complete the notes below

听力题SECTIOW 4 There are ten questions below

听力题SECTION 1 There are ten questions below

单选题The author believes recent discoveries of the remains of complex societies in Amazonia A are evidence of early indigenous communities. B are the remains of settlements by invaders. C are the ruins of communities established since the European invasions. D show the region has only relatively recently been covered by forest.

单选题What's the percentage of cotton which is grown without the use of pesticides in the global market?

单选题Questions 9-13 Complete the sentences below with NO MORE THAN THREE WORDS OR A NUMBER from the passage.

单选题In India, the GSBF lamps are too expensive for most people

单选题All people going to the farm can hear information about organic farming.________.

单选题According to the woman, which of the following is not the aim of the attendance rules?

单选题Listen to the conversation and circle the appropriate letter.

单选题Which of the following contravened the law during the Tang era? A a qualified doctor's refusal to practise B the use of unorthodox medical practices C a patient dying under medical treatment D the receipt of money for medical treatment

单选题Eddy Courtheoux believes that

单选题More than half of India's population uses

单选题Recycling A. has been going no for a centuries. B. began during the industrial revolution. C. started as a business in the United States.

单选题Question 38-40 Choose THREE letters A-G. Which THREE areas of study are mentioned as a part of ocean waste disposal? A when to dump waste B the effects of nuclear waste burial C the diffusion and mixing of waste D the transportation of nuclear waste E acceptable levels of water contamination F where to bury nuclear waste G other ways of disposing waste

单选题Complete the form below. Write NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer. Property Rental Search: Client Details Address: "The Royal", (1) , Ironbridge Age: (2) Accommodation required from: (3) until 30 June Price range: minimum ￡60 per week, maximum (4) per week Preferred type of property: (5)

单选题You should spend about 20 minutes on Questions 27-40 which are based on Reading Passage 3 below.Assessing the RiskHow do we judge whether it is right to go ahead with a new technology? Apply the precautionary principle properly and you won't go far wrong, says Colin Tudge.Section 1As a title for a supposedly unprejudiced debate on scientific progress, "Panic attack: interrogating our obsession with risk" did not bode well. Held last week at the Royal Institution in London, the event brought together scientists from across the world to ask why society is so obsessed with risk and to call for a "more rational" approach. "We seem to be organising society around the grandmotherly maxim of 'better safe than sorry'," exclaimed Spiked, the online publication that organised the event. "What are the consequences of this overbearing concern with risks?"The debate was preceded by a survey of 40 scientists who were invited to describe how awful our lives would be if the "precautionary principle" had been allowed to prevail in the past. Their response was: no heart surgery or antibiotics, and hardly any drugs at all; no aeroplanes, bicycles or high-voltage power grids; no pasteurisation, pesticides or biotechnology; no quantum mechanics; no wheel; no "discovery" of America. In short, their message was: no risk, no gain.They have absolutely missed the point. The precautionary principle is a subtle idea. It has various forms, but all of them generally include some notion of cost-effectiveness. Thus the point is not simply to ban things that are not known to be absolutely safe. Rather, it says: "Of course you can make no progress without risk. But if there is no obvious gain from taking the risk, then don't take it."Clearly, all the technologies listed by the 40 well-chosen savants were innately risky at their inception, as all technologies are. But all of them would have received the green light under the precautionary principle because they all had the potential to offer tremendous benefits — the solutions to very big problems — if only the snags could be overcome.If the precautionary principle had been in place, the scientists tell us, we would not have antibiotics. But of course we would — if the version of the principle that sensible people now understand had been applied. When penicillin was discovered in the 1920s, infective bacteria were laying waste to the world. Children died from diphtheria and whooping cough, every open drain brought the threat of typhoid, and any wound could lead to septicaemia and even gangrene.Penicillin was turned into a practical drug during the Second World War, when the many pestilences that result from war threatened to kill more people than the bombs. Of course antibiotics were a priority. Of course the risks, such as they could be perceived, were worth taking.And so with the other items on the scientists' list: electric light bulbs, blood transfusions, CAT scans, knives, the measles vaccine — the precautionary principle would have prevented all of them, they tell us. But this is just plain wrong. If the precautionary principle had been applied properly, all these creations would have passed muster, because all offered incomparable advantages compared to the risks perceived at the time.Section 2Another issue is at stake here. Statistics are not the only concept people use when weighing up risk. Human beings, subtle and evolved creatures that we are, do not survive to threescore years and ten simply by thinking like pocket calculators. A crucial issue is consumer's choice. In deciding whether to pursue the development of a new technology, the consumer's right to choose should be considered alongside considerations of risk and benefit. Clearly, skiing is more dangerous than genetically modified tomatoes. But people who ski choose to do so; they do not have skiing thrust upon them by portentous experts of the kind who now feel they have the right to reconstruct our crops. Even with skiing, there is the matter of cost effectiveness to consider: skiing, I am told, is exhilarating. Where is the exhilaration in GM soya?Indeed, in contrast to all the other items on Spiked's fist, GM crops stand out as an example of a technology whose benefits are far from clear. Some of the risks can at least be defined. But in the present economic climate, the benefits that might accrue from them seem dubious. Promoters of GM crops believe that the future population of the world cannot be fed without them. That is untrue. The crops that really matter are wheat and rice, and there is no GM research in the pipeline that will seriously affect the yield of either. GM is used to make production cheaper and hence more profitable, which is an extremely questionable ambition.The precautionary principle provides the world with a very important safeguard. If it had been in place in the past, it might, for example, have prevented insouciant miners from polluting major rivers with mercury. We have come to a sorry pass when scientists, who should above all be dispassionate scholars, feel they should misrepresent such a principle for the purposes of commercial and political propaganda. People at large continue to mistrust science and the high technologies it produces, partly because they doubt the wisdom of scientists. On such evidence as this, these doubts are fully justified.Questions 27-32Do the following statements agree with the information given in Reading Passage 3? In boxes 27-32 on your answer sheet, writeTRUE if the statement agrees with the informationFALSE if the statement contradicts the informationNOT GIVEN if there is no information on this

单选题 A. The benefit of receiving enough sleep is essential to our inner well-being. Not enough sleep, however, means that we lack the opportunity to restore ourselves physiologically, emotionally and cognitively. It affects our mood and can result in behaviour and performance problems. When we sleep, our bodies rest but our brains are active. Sleep lays the groundwork for a productive day ahead. Although most people benefit the most from eight hours of sleep each night, this is not always what they manage to achieve. Men get slightly less sleep than women during the week (6.7 hours/night vs. 7.0 hours /night), but have fewer sleep problems, according to recent Sleep in America polls conducted annually by the National Sleep Foundation (NSF). B. According to current scientific thought, the human body is pre-programmed for sleep. At nightfall, cells in the retina (a light sensitive membrane connected to the eye by the optic nerve) send a sleep signal to a cluster of nerve cells in the brain. These nerve cells are concentrated together in the suprachiasmatic nucleus (SCN) and are located in a part of the brain called the hypothalamus which helps regulate body temperature. The SCN is also known as the circadian clock. This biological "clock" relays the message to other parts of the brain which then signals the body that it is time to sleep. For instance, the pineal gland, also located in the hypothalamus, produces a substance called melatonin, which lowers body temperature, and causes drowsiness. C. A great deal of the information we now know about sleep and the physiological changes it causes in the brain can be traced back to the invention of the electroencephalogram in the 1950s. This machine allowed scientists to record the feeble electric currents generated on the brain without opening the skull and to depict them graphically onto a strip of paper. Brain-wave function could be examined and scientists could thereby observe sleep from moment to moment. In the 1970s it became possible for scientists to make assumptions about the role that correct breathing plays during sleep with the development of the technology to measure respiration. It was here that science really began to understand the nature of sleep and the role it plays in people's lives. D. As well as uncovering the physiological changes occurring during sleep, The New England Journal of Medicine reported that sleep concerns were a public health threat as serious as smoking and in the years since, medical researchers have linked sleep disorders with many life-threatening diseases. Even though more than 70 million Americans have a sleeping problem, most cases go undiagnosed and untreated, so the true economic and sociological damage caused by these disorders is unknown although, the economic cost is conservatively estimated to be billions of dollars a year in healthcare costs and lost productivity. Breathing problems during sleep represent by far the greatest proportion of sleep disorders and cause the most concern, with studies showing that between 50% and 80% of stroke and heart failure patients have breathing problems during sleep. E. Scientific studies have found that children who are identified as snorers or those who have poor sleeping patterns at around the age of four or five, scored lower than average in Intelligence Quotient (IQ) tests, not only during the sleep deprivation period but subsequent to that. There are also suggestions that ongoing sleep deprivation in adults can cause permanent damage. F. Teenagers can have peculiar sleep requirements. It has always been known that adolescents spend more time sleeping than adults, but science has only recently isolated the reasons for this. Research now shows that growth hormones are secreted during slow-wave sleep and teenagers do indeed, need more of this kind of sleep than at any other stage in their lives. Chronic lack of sleep among teenagers means that as a group they are more likely to use stimulants and experience negative mood swings. Statistics also indicate that young drivers are responsible for more than one-half of fall- asleep crashes. G. However, it is not just young people who pay the price for lack of proper sleep. Workers are robbing themselves of sleep in order to increase productivity in both their social and working lives. In recent years, however, the identification of driver fatigue as the possible cause of 1/3 of all accidents provides some indication of the price we are paying for such a trade-off. Extensive scientific research indicates that chronic tiredness has been the cause of environmental disasters, nuclear mishaps and several well-documented near misses in the air. Scientists are beginning to argue that the lengthening of the working day is harming workers, their families and society. In the long run, productivity will suffer. H. As a reaction against this disturbing trend, there has been increased support for regulation of the number of hours worked by employees in demanding jobs, such as doctors, nurses, pilots, bus drivers and truck drivers. Legislation is being drafted to limit work hours, thus forcing companies to become instrumental in changing work cultures to ensure employees are getting enough rest and leisure time in order to avoid chronic tiredness and its devastating consequences. Questions 14-16 Choose the correct letter from (A-D) and write it in boxes 14-16 on your Answer Sheet.