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1、199816.People of diverse backgrounds now fly to distant places for pleasure, business or education. (A)A. differentB. distinctiveC. similarD. separated17The fun of playing the game was a greater incentive than the prize. (A)A. motiveB. initiativeC. excitementD. entertainment18.Sometimes, the message
2、s are conveyed through deliberate, conscious gestures; other times, our bodies talk without our even knowing. (B)A. definiteB. intentionalC. delicateD. interactive19.Hunters have almost exterminated many of the larger animals while farmers destroyed many smaller animals. (C)A. woundedB. reducedC. ki
3、lledD. trapped20.Today black children in south Africa are still reluctant to study subjects from which they were effectively barred for so long. (D)A. anxiousB. curiousC. opposedD. unwilling21.If a cat comes too close to its nest, the mocking bird initiates a set of actions to protect its off-spring
4、. (B)A. hastensB. triggersC. devisesD. releases22.Panic swept through the swimmers as they caught sight of a huge shark approaching menacingly. (C)A. TensionB. ExcitementC. FearD. Nervousness23Lighting levels are carefully controlled to fall within an acceptable level for optimal reading convenience
5、. (A)A. idealB. requiredC. optionalD. standard24.Many observers believe that country will remain in state of chaos if it fails to solve its chronic food shortage problem. (C)A. transientB. starvingC. continuousD. serial25.The exhibition is designed to facilitate further cooperation between Chinese T
6、V industry and overseas TV industries. (D)A. establishB. maximizeC. guaranteeD. promote26.Anyone who can study abroad is fortunate; but, of course, it is not easy to make the _ from one culture to another. (D)A. translationB. transportationC. transmissionD. transition27.We _ that diet is related to
7、most types of cancer, but we dont have definite proof. (B)A. assureB. suspectC. ascertainD. suspend28.How large a proportion of the sales of stores in or near resort areas can be _ to tourist spending? (C)A. contributedB. appliedC. attributedD. attached29.Not all persons arrested and _ with a crime
8、are guilty, and the main function of criminal courts is to determine who is guilty under the law. (D)A. sentencedB. accusedC. persecutedD. charged30.He _ in court that he had seen the prisoner run out of the bank after it had been robbed. (B)A. justifiedB. witnessedC. testifiedD. identified31.If you
9、 are a member of a club, you must _ to the rules of that club. (A)A. conformB. appealC. referD. access32.With the constant change of the conditions, the outcome is not always _. (B)A. favorableB. predictableC. dependableD. reasonable33.Instead of answering the question, the manager _ his shoulders a
10、s if it were not important. (A)A. shruggedB. touchedC. raisedD. patted34.I am sorry for the _ tone in your letter, but I feel sure that things are not so bad with you as you say. (C)A. apologeticB. threateningC. pessimisticD. grateful35.A patient who is dying of incurable cancer of the throat is in
11、terrible pain, which can no longer be satisfactorily _. (B)A. diminishedB. alleviatedC. replacedD. abolishedPassage OneNuclear powers danger to health, safety, and even life itself can be summed up in one word: radiation.Nuclear radiation has a certain mystery about it, partly because it cannot be d
12、etected by human senses. It cant be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we cant detect them, sense them, without a radio receiver. Similarly, we cant sense radio activity without a
13、radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.At very high levels, radiation can kill an animal or human being outright by killing masses of cells in vital organs. But even the lowest levels can do serious damage. There i
14、s no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit. And if they are killed outright, your body will replace the dead cells with healthy ones. But if the few cells are onl
15、y damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in a deformed way. They can grow into cancer. Sometimes this does not show up for many years.This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the vi
16、ctim being aware at the time that damage has occurred. A person can be irradiated and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or liable to serious illness as a result of radiation absorbed by its grandparents.Radiation can hurt us. We m
17、ust know the truth.36.According to the passage, the danger of nuclear power lies in _.A. nuclear mysteryB. radiation detectionC. radiation levelD. nuclear radiation37.Radiation can cause serious consequences at the lowest level _.A. when it kills few cellsB. if it damages the few cellsC. though the
18、damaged cells can repair themselvesD. unless the damaged cells can reproduce themselves38.The word “significant” in Paragraph 3 most probably means _.A. responsibleB. meaningfulC. fatalD. harmful39.Radiation can hurt us in the way that it can _.A. kill large numbers of cells in main organs so as to
19、cause death immediatelyB. damage cells which may grow into cancer years laterC. affect the healthy grow of our offspringD. all of the above40.Which of the following can be best inferred from the passage?A. The importance of protection from radiation cannot be over-emphasized.B. The mystery about rad
20、iation remains unsolved.C. Cancer is mainly caused by radiation.D. Radiation can hurt those who are not aware of its danger.Key: D, B, D, D, APassage TwoIn some ways, the United States has made spectacular progress. Fires no longer destroy 18,000 buildings as they did in the Great Chicago Fire of 18
21、71, or kill half a town of 2,400 people, as they did the same night in Peshtigo, Wisconsin. other than the Beverly Hill Supper Club fire in Kentucky in 1977, it has been four decades since more than 100 Americans died in a fire.But even with such successes, the United States still has one of the wor
22、st fire death rates in the world. Safety experts say the problem is neither money nor technology, but the indifference of a country that just will not take fires seriously enough.American fire departments are some of the worlds fastest and best-equipped. They have to be. The United States has twice
23、Japans population, and 40 times as many fires. It spends far less on preventing fires than on fighting them. And American fire-safety lessons are aimed almost entirely at children, who die in disproportionately large numbers in fires but who, contrary to popular myth, start very few of them.Experts
24、say the fatal error is an attitude that fires are not really anyones fault. That is not so in other countries, where both public education and the law treat fires as either a personal failing or a crime. Japan has many wood houses; of the estimated 48 fires in world history, that burned more than 10
25、,000 buildings, Japan has had 27. Penalties for causing a severe fire by negligence can be as high as life imprisonment.In the United States, most education dollars are spent in elementary schools. But the lessons are aimed at a too limited audience; just 9 percent of all fire deaths are caused by c
26、hildren playing with matches.The United States continues to rely more on technology than laws or social pressure. There are smoke detectors in 85 percent of all homes. Some local building codes now require home sprinklers. New heaters and irons shut themselves off if they are tipped.41.The reason wh
27、y so many Americans die in fires is that _.A. they took no interest in new technologyB. they did not attach great importance to preventing firesC. they showed indifference to fighting firesD. they did not spend enough money on fire facilities42.Although the fire death rate has declined, the United S
28、tates _.A. still has the worst fire death rate in the worldB. is still alert to the fire problemC. is still training a large number of safety expertsD. is still confronted with the serious fire problem43.It can be inferred from the passage that _.A. fire safety lessons should be aimed at American ad
29、ultsB. American children have not received enough education of fire safety lessonC. Japan is better equipped with fire facilities than the United StatesD. Americas large population accounts for high fire frequency44.In what aspects should the United States learn from Japan?A. Architecture and buildi
30、ng material.B. Education and technology.C. Laws and attitude.D. All of the above.45.To narrow the gap between the fire death rate in the United States and that in other countries, the author suggests _.A. developing new technologyB. counting more on laws and social pressureC. placing a fire extingui
31、sher in every familyD. reinforcing the safeness of household appliancesKey: B, D, A, C, BPassage ThreeThere are hidden factors which scientists call “feedback mechanisms”. No one knows how they will interact with the changing climate. Heres one example: plants and animals adapt to climate change ove
32、r centuries. At the current estimate of half a degree centigrade of warming per decade, vegetation (植物) may not keep up. Climatologist James Hansen predicts climate zones will shift toward the poles by 50 to 75 kilometers a yearfaster than trees can naturally migrate. Species that find themselves in
33、 an unfamiliar environment will die. The 1000-kilometre wide strip of forest running through Canada, the USSR and Scandinavia could be cut by half. Millions of dying trees would soon lead to massive forest fires; releasing tons of CO2 and further boosting global warming.There are dozens of other pos
34、sible “feedback mechanisms”. Higher temperatures will fuel condensation and increase cloudiness, which may actually damp down global warming. Others, like the “albedo” effect, will do the opposite. The “albedo” effect is the amount of solar energy reflected by the earths surface. As the northern sno
35、w melts and the darker sea and land pokes (戳) through, more heat will be absorbed, adding to the global temperature increase.Even if we were to magically stop all greenhouse-gas emissions tomorrow the impact on global climate would continue for decades. Delay simply makes the problem worse. The fact
36、 is that some of us are doing quite well the way things are. In the developed world prosperity has been built on 150 years of cheap fossil fuels.Material progress has been linked to energy consumption. Today 75 percent of all the worlds energy is consumed by a quarter of the worlds population. The a
37、verage rich world resident adds about 3.2 tons of CO2 yearly to the atmosphere, more than four times the level added by each Third World citizen. The US, with just 7 percent of the global population, is responsible for 22 percent of global warming.46.“Feedback mechanisms” in paragraph 1 most probabl
38、y refers to _.A. how plants and animals adapt to hidden factorsB. how plants and animals interact with the changing climateC. how climate changesD. how climate zones shift47.James Hansen predicts that the shift of climate zones will be accompanied by _.A. the cutting of many treesB. desirable enviro
39、nmental changesC. successful migration of speciesD. unsuccessful migration of trees48.We can learn from the passage that _.A. some feedback mechanisms may slow down global warmingB. the basic facts of global warming are unknownC. developing countries benefit from cheap fossil fuelsD. developed count
40、ries have decided to reduce their energy consumption49.It can be inferred from the passage that _.A. he developing world has decided to increase its energy consumptionB. a third-world citizen adds less than a ton of CO2 yearly to the atmosphereC. the world climate would soon gain its balance if we s
41、topped greenhouse gas emissionsD. future prosperity of the world is dependent on cheap fossil fuels50.Which of the following is the main topic of the passage?A. Material progress and energy consumption.B. Prosperity and cheap fossil fuels.C. Impact of global warming on climate.D. Plants and animals
42、in the changing climate.Key: B, D, A, B, CPassage FourLearning disabilities are very common. They affect perhaps 10 percent of all children. Four times as many boys as girls have learning disabilities.Since about 1970, new research has helped brain scientists understand these problems better. Scient
43、ists now know there are many different kinds of learning disabilities and that they are caused by many different things. There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a lea
44、rning disability. There is no outward sign of the disorder. So some researchers began looking at the brain itself to learn what might be wrong.In one study, researchers examined the brain of the learning-disabled person who. had died in an accident. They found two unusual things. One involved cell i
45、n the left side of the brain, which control language. These cells normally are white. In the learning-disabled person, however, these cells were gray. The researchers also found that many of the nerve cells were not in a line the way they should have been. The nerve cells were mixed together.The stu
46、dy was carried out under the guidance of Norman Geschwind, an early expert on learning disabilities. Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally. Probably, he said, ner
47、ve cells there did not connect as they should. So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue. Instead, they measured the brains electrical activity and made a map of the electrical signals.Frank Duffy experimented with this
48、technique at Childrens Hospital Medical Center in Boston. Doctor Duffy found large differences in the brain activity of normal children and those with reading problems. The differences appeared throughout the brain. Doctor Duffy said his research is evidence that reading disabilities involve damage to a wide area of the brain, not just