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填空题 41)__________. The mystery involves a change in the atmoshpere—a hole, or thinning, of the ozone in the atmosphere over Antarctica. Scientists were not sure what was causing it. 42) __________. It is found both in the air we breathe and in the upper atmosphere. Near the earth, ozone in the air is a danger to life. It is a pollutant. But ozone found 10 kilometers to 50 kilometers up in the atmosphere protects life on earth. Ozone forms in the atmosphere through the action of solar radiation. Once formed, the ozone blocks harmful radiation from reaching the earth. Scientists say a decrease in ozone and an increase in the harmful radiation will cause many more cases of skin cancer and will harm crops, animals and fish. 43) __________. Chlorine is released into the air from the chlorofluorocarbons—or CFCs—used in plastic, air conditioners and spray cans. The use of CFCs has greatly increased worldwide since 1960 and is continuing to increase. The destruction of the ozone in the atmosphere also has increased. An international effort is being made to halt the loss of atmospheric ozone. But many experts fear the effort will not produce results fast enough to prevent harm to life on earth. Thirty-one nations negotiated a treaty last year (1987) calling for a reduction in the worldwide production of chlorofluorocarbons. It was praised at the time as a major step in halting further destruction of the ozone. Cuts in the present production of CFCs will begin in the mid-1990s. 44) __________. Harmful chemicals take from 7 to 10 years to rise up into the atmosphere. Damage from the increase use of CFCs in this past decade still has not been felt. Government scientists say more than two times the mount of these gases will be in the atmosphere before the levels stop rising. 45) __________. Scientists point out a molecule of chlorine remains in the atmosphere for as long as 100 years. During that time, it destroys tens of thousands of ozone molecules. [A] Why has the ozone problem developed? No one knows for sure. But scientists say the evidence is very strong that the chlorine in chlorofluorocarbons (含氯氟烃)is causing much of the problem. [B] Almost 30 years after scientists discovered that common industrial gases were destroying Earth's protective ozone layer, satellite readings and ground observations show for the first time that the dangerous rate of ozone loss is finally slowing.[C] Ozone is a three-atom form of oxygen gas.[D] There have been some new developments in a continuing mystery we have reported about many times.[E] Scientists also say damage to ozone will continue because of the long life of the chemical gases released into the atmosphere.[F] The ozone problem caused by CFCs was first noticed as early as the 1960s.[G] However, most scientists now agree destruction of the ozone will continue for decades. They say this will happen even though industries and governments do their best to control the damage.
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填空题Daisy: Fred, why don't you come and have a picnic with us? Fred: ______. I have long been expecting it.
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填空题联合国秘书长意识到自己仍能得到冲突双方的信赖,从而奋不顾身地飞往战火纷飞的海湾地区。
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填空题For (36) the bloodshed and tragedy of D-Day, the beaches of Normandy will always evoke a certain (37) a yearning for a time when nations in the civilized world buried their differences and combined to oppose absolute evil, when values seemed clearer and the terrible consequences of war stopped (38) of the annihilation of humanity. But over half a century after the Allies hit those wave-battered sand flats and towering cliffs, the Normandy invasion stands as a feat (39) to be repeated. There will never be (40) D-Day. Technology has changed the conditions of warfare in ways that none of the D-Day participants could have (41) All-out war in the beginnings of this century would surely spell all-out (42) for the belligerents, and possibly for the entire human race. No credible scenario for a future world war would allow time for the massive buildup of conventional forces that occurred in the 1940s. The moral equivalent of the Normandy invasion in the nuclear age would involve a presidential decision to put tens of millions of American lives at (43) . And the possible benefits for the allies would be uncertain at best. European defense experts often ask whether the U.S. would be willing to "trade Pittsburgh for Dusseldorf". In practice, the question may well be whether it is worth (44) American cities to avenge a Europe already (45) to rubble.
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填空题eligible, elliptical, eloquent, elusive This metaphor always ____ the students; they feel it quite incomprehensible.
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填空题The man was sentenced to 10 years in prison after he was accused of bri______ a senior bank official.
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填空题The teacher said his work was (satisfy) ______ but there was still room for improvement.
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填空题{{B}}Directions: Pick out five appropriate expressions from the eight choices below and complete the following dialogue by blackening the corresponding letter on the Answer Sheet.{{/B}} A. Where have you been B. What do you doC. An interesting place D. a part time jobE. And what do you do F. been thereG. That sounds interesting H. Which restaurantJason: Where do you work, Andrea?Andrea: I work for Thomas Cook Travel.Jason: Oh, really?{{U}} 56 {{/U}}there?Andrea: I'm a guide. I take people on tours to countries in South America, like Peru.Jason:{{U}} 57 {{/U}}!Andrea: Yes, it's a great job. I love it.{{U}} 58 {{/U}}?Jason: I'm a student, and I have{{U}} 59 {{/U}}, too.Andrea: Oh? Where do you work?Jason: In a fast-food restaurant.Andrea:{{U}} 60 {{/U}}?Jason: Hamburger Heaven.
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填空题John Bunyan is an English novelist of the 17th century. The main narrative technique he uses in his famous work The Pilgrim"s Progress is______.
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填空题Paper money ______ (use)for over a thousand years.
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填空题Translate the following sentences into Chinese.Write your answers on the ANSWER SHEET.(首都师范大学2010研,考试科目:英语综合水平)I don"t know where she is. She could have been kidnapped for all I know.
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填空题The chairman spoke so forcefully that the rest of the committee yielded ______ his opinion.
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填空题Provided you fulfill the terms of the credit we will accept and pay ______ maturity the draft presented ______ us under this credit and if required, provide discounting facilities ______ current rates.
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填空题Translate the following passage into Chinese.(中国地质大学2007研,考试科目:翻译与写作)With the high degree of specialization, the frontiers of knowledge are steadily being pushed back more rapidly than ever before. But this has not been achieved without considerable cost. The scientist, who outside his own particular subject is little more than a moron, is a modern phenomenon: as is the man of letters who is barely aware of the tremendous strides that have been made in technology. Similarly, specialization has indirectly affected quite ordinary people in every walk of life. Many activities which were once pursued for their own sakes, are often given up in despair : they require techniques, the experts tell us, which take a life-time to master. Why learn to play the piano, when you can listen to the world"s greatest pianists in your own drawing-room?Little by little, we are becoming more and more isolated from each other. It is almost impossible to talk to your neighbor about his job, even if he is engaged in roughly the same work as you are. The Royal Society in Britain(英国皇家学会)includes among its members only the most eminent scientists in the country. Yet it is highly disconcerting to find that even here, as one of its Fellows put it, at a lecture only 10% of the members can understand 50% of what is being said!
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填空题They are part of the authors ______. 这是这位作者讲故事的部分方式。
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填空题Allie is a capuchin 16 who helps her disabled friend perform everyday tasks. Allie is a(n) 17 of many animals who can be 18 to do certain jobs. Besides monkeys, 19 and sea lions can also give people a helping 20 . Dogs are good at 21 down prey and sniffing out 22 and 23 because they have millions of 24 in their nose. Monkeys are good helper for the 25 who cannot look after themselves? Sea lions can help scientists to record the 26 of whales because they can 27 to the deep ocean. In addition, 28 are part of whales' natural environment, which makes the video more 29 . But animals cannot do the jobs 30 training. The main process of training is called 31 , which uses 32 . During the training, trainers 33 an animal for doing something 34 . For monkeys, the positive reinforcement can 35 a year before they are qualified for their jobs. A.hand K.dogs B.earthquake victims L.natural behavior C.natural M.illegal substances D.smell nerves N.monkey E.without O.correctly F.take P.dive G.conditioned Q.conditioning H.reward R.example I.positive reinforcement S.sea lions J.tracking T.disabled
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填空题Shaking with violent anger, the old woman stood up to ______ him.If you lay a hand on my daughter, Ill kill you. 老妇人气得浑身发抖,站起来走到他面前说:“你敢碰我女儿一下,我就杀了你。”
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填空题Author______Title______ The three women sat in the little room, imagined not remembered. Veronica detected in her mother"s cream-coloured dress just a touch of awkwardness, her grandmother"s ineptness at a trade for which she was not wholly suited, a shoulder out of true, a cuff awry, as so many buttons and cuffs and waistbands had been during the making-do in the time of austerity.
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