大学英语四级分类模拟题321及答案解析.doc

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1、大学英语四级分类模拟题 321 及答案解析(总分：100.00，做题时间：90 分钟)一、Reading Comprehensio(总题数：0，分数：0.00)Global warming is a trend toward warmer conditions around the world. Part of the warming is natural; we have experienced a 20,000-year-long warming as the last ice age ended and the ice 1 away. However, we have already r

2、eached temperatures that are in 2 with other minimum-ice periods, so continued warming is likely not natural. We are 3 to a predicted worldwide increase in temperatures 4 between 1 and 6 over the next 100 years. The warming will be more 5 in some areas, less in others, and some places may even cool

3、off. Likewise, the 6 of this warming will be very different depending on where you arecoastal areas must worry about rising sea levels, while Siberia and northern Canada may become more habitable (宜居的) and 7 for humans than these areas are now. The fact remains, however, that it will likely get warm

4、er, on 8 , everywhere. Scientists are in general agreement that the warmer conditions we have been experiencing are at least in part the result of a human-induced global warming trend. Some scientists 9 that the changes we are seeing fall within the range of random (无规律的) variationsome years are col

5、d, others warm, and we have just had an unremarkable string of warm years 9 but that is becoming an increasingly rare interpretation in the face of continued and increasing warm conditions. A. appealing B. average C. contributing D. dramatic E. frequently F. impact G. line H. maintain I. melted J. p

6、ersist K. ranging L. recently M. resolved N. sensible O. shock（分数：20.00）Accidents are caused; they don“t just happen. The reason may be easy to see: a shelf out of 11 , a patch of ice on the misfortunefrustration, tiredness or just bad temperthat show what the accident really is, a sort of attack on

7、 oneself. Road accidents, for example, happen frequently after a family quarrel, and we all know people who are accident-prone, so often at 12 with themselves and the world that they seem to cause accidents for themselves and others. By 13 , an accident is something you cannot 14 or avoid, and the i

8、dea which used to be current, that the majority of road accidents are caused by a 15 of criminally careless drivers, is not supported by insurance statistics. These show that most accidents involve ordinary motorists in a moments of carelessness or thoughtlessness. It is not always clear, either, wh

9、at sort of conditions make people more likely to have an accident. For instance, the law requires all factories to take safety precautions and most companies have safety committees to make sure the 16 are observed, but still, every day in Britain, some fifty thousand men and women are injured from w

10、ork 17 to accidents. These accidents are largely the result of human 18 or misjudgmentnoise and fatigue, boredom or worry are possible factors which 19 to this. Doctors who work in factories have found that those who drink too much, usually people who have a high 20 level, run three times the normal

11、 risk of accidents at work. A. regulations B. due C. office D. reach E. minority F. increasing G. anxiety H. predict I. definition J. access K. odds L. report M. error N. effects O. contribute（分数：20.00）Zoos have existed for so long that no one knows the origins of the first ones. At one time, zoos w

12、ere 21 to entertain kings, queens, princes and princesses. Today, there are probably over 500 public zoos 22 the world. The one with the greatest 23 of animals is in Berlin. Years ago, zoos always 24 animals in barred cages, but now zoos try to keep their animals in more natural surroundings. As a r

13、esult, there is great 25 in the ways animals are treated, housed and bred. One of the best zoos in the United States is at San Diego in California, where the climate makes it possible for the animals to live 26 most of the year. As civilization spreads and natural wildernesses are reduced, zoos have

14、 become more important. They 27 places where rare animals can be saved from extinction. Game reserves have 28 in parts of Europe for hundreds of years for hunting purposes. Today, however, they are usually places where wildlife are safe from hunters and can live and breed 29 by man. One of the large

15、st 30 in the world is the Kruger National Park in South Africa, where elephants, zebras and lions are among the attractions. A. preparation B. variety C. around D. provide E. used F. outdoors G. kept H. saving I. undisturbed J. improvement K. reserves L. passionate M. reasonable N. existed O. unhapp

16、y（分数：20.00）When we think of green buildings, we tend to think of new onesthe kind of high-tech, solar-paneled masterpieces that make the covers of architecture magazines. But the U.S. has more than 100 million existing homes, and it would be 31 wasteful to tear them all down and 32 them with greener

17、 versions. An enormous amount of energy and resources went into the construction of those houses. And it would take an average of 65 years for the 33 carbon emissions from a new energy-efficient home to make up for the resources lost by destroying an old one. So in the broadest 34 , the greenest hom

18、e is the one that has already been built. But at the same time, nearly half of U.S. carbon emissions come from heating, cooling and 35 our homes, offices and other buildings. “You can“t deal with climate change without dealing with existing buildings,“ says Richard Moe, the president of the National

19、 Trust. With some 36 , the oldest homes tend to be the least energy-efficient. Houses built before 1939 use about 50% more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that 37 over time and let in more outside air. Fortunately, there are a 38 number of r

20、elatively simple changes that can green older homes, from 39 ones like Lincoln“s Cottage to your own postwar home. And efficiency upgrades (升级) can save more than just the earth; they can help 40 property owners from rising power costs. A. accommodations B. clumsy C. doubtfully D. exceptions E. expa

21、nd F. historic G. incredibly H. powering I. protect J. reduced K. replace L. sense M. shifted N. supplying O. vast（分数：20.00）No one knows exactly how many disabled people there are in the world, but 41 suggest the figure is over 450 million. The number of disabled people in India alone is probably mo

22、re than double the total 42 of Canada. In the United Kingdom, about one in ten people have some disability. Disability is not just something that happens to other people. As we get older, many of us will become less mobile, hard of hearing or have failing 43 . Disablement can take many forms and occ

23、ur at any time of life. Some people are 44 with disabilities. Many others become disabled as they get older. There are many progressive disabling diseases. The longer time goes on, the 45 they become. Some people are disabled in accidents. Many others may have a period of disability in the form of a

24、 mental illness. All are affected by people“s 46 towards them. Disabled people face many physical 47 . Next time you go shopping or to work or visit friends, imagine how you would 48 if you could not get up steps, or on to buses and trains. How would you cope if you could not see where you were goin

25、g or could not hear the traffic? But there are other barriers: prejudice can be even harder to break down and ignorance inevitably represents by far the greatest barrier of all. It is almost impossible for the able-bodied to fully 49 what the severely disabled go through, so it is important to draw

26、50 to these barriers and show that it is the individual person and their ability, not their disability, which counts. A. attention B. eyesight C. born D. reverse E. attitude F. worse G. desperate H. exposed I. require J. barriers K. manage L. estimates M. appreciate N. connection O. population（分数：20

27、.00）大学英语四级分类模拟题 321 答案解析(总分：100.00，做题时间：90 分钟)一、Reading Comprehensio(总题数：0，分数：0.00)Global warming is a trend toward warmer conditions around the world. Part of the warming is natural; we have experienced a 20,000-year-long warming as the last ice age ended and the ice 1 away. However, we have alread

28、y reached temperatures that are in 2 with other minimum-ice periods, so continued warming is likely not natural. We are 3 to a predicted worldwide increase in temperatures 4 between 1 and 6 over the next 100 years. The warming will be more 5 in some areas, less in others, and some places may even co

29、ol off. Likewise, the 6 of this warming will be very different depending on where you arecoastal areas must worry about rising sea levels, while Siberia and northern Canada may become more habitable (宜居的) and 7 for humans than these areas are now. The fact remains, however, that it will likely get w

30、armer, on 8 , everywhere. Scientists are in general agreement that the warmer conditions we have been experiencing are at least in part the result of a human-induced global warming trend. Some scientists 9 that the changes we are seeing fall within the range of random (无规律的) variationsome years are

31、cold, others warm, and we have just had an unremarkable string of warm years 9 but that is becoming an increasingly rare interpretation in the face of continued and increasing warm conditions. A. appealing B. average C. contributing D. dramatic E. frequently F. impact G. line H. maintain I. melted J

32、. persist K. ranging L. recently M. resolved N. sensible O. shock（分数：20.00）解析：I解析 此短句与 and 前的 the last ice age ended 并列，故此处应该填一个动词过去式，符合的有 I，M，O 三项，而根据前后的意义来看，此处是说冰川纪结束，冰山消融，melt away 为固定搭配。故选 I。解析：G解析 该空的前一单词为 in，故这里应该用名词，且与后面的 with 搭配，符合要求的名词里面只有 line，可以组成短语 in line with“与一致”，这句话意思是我们已经接近与其他最小冰川期时

33、一致的温度。解析：C解析 此句缺谓语动词，又根据前面的 we are 可以确定此处为现在进行时，需填动词-ing 形式，合适的词只有 appealing，contributing 和 ranging，可以和 to 搭配且意义正确的只有 contributing，意为“我们正在导致世界范围的气温升高”。解析：K解析 根据后面的温度区间可知这是来形容温度的，为后置定语，故为形容词，而且词义为“在之间”，即 range between/from A and B，故选 K。解析：D解析 根据此词前的 more 可以推断此处为形容词，可以选的词语有 appealing, dramatic 和sensib

34、le，这里形容的是气候的变化，因此应该选 dramatic。解析：F解析 根据此词前的 the 可以推断此处应该填名词，可以选的有 average，impact 和 shock，其中可以与 warming 搭配的有 impact 和 shock，此处形容的是这种气候变暖，shock 比 impact 更具感情色彩，此处应该选更为客观的 impact。解析：A解析 and 连接的是并列的两个形容词，故此处应该用形容词，sensible 只能形容人，因此appealing 更为合适。解析：B解析 根据句子成分不缺，可以判断出此处为插入语，可以与 on 搭配的且词义合适的只有average。意为“平

35、均，通常”。解析：H解析 此句缺的是谓语动词，且此篇通篇都是一般现在时，根据后面的 scientists 可知此词应该为原型形式。词义正确的只有 maintain。意为“坚称”。解析：L解析 此句不缺句子成分，故只能选副词，可以选的词语有 recently 和 frequently，只有recently 符合题意。故选 L。Accidents are caused; they don“t just happen. The reason may be easy to see: a shelf out of 11 , a patch of ice on the misfortunefrustrat

36、ion, tiredness or just bad temperthat show what the accident really is, a sort of attack on oneself. Road accidents, for example, happen frequently after a family quarrel, and we all know people who are accident-prone, so often at 12 with themselves and the world that they seem to cause accidents fo

37、r themselves and others. By 13 , an accident is something you cannot 14 or avoid, and the idea which used to be current, that the majority of road accidents are caused by a 15 of criminally careless drivers, is not supported by insurance statistics. These show that most accidents involve ordinary mo

38、torists in a moments of carelessness or thoughtlessness. It is not always clear, either, what sort of conditions make people more likely to have an accident. For instance, the law requires all factories to take safety precautions and most companies have safety committees to make sure the 16 are obse

39、rved, but still, every day in Britain, some fifty thousand men and women are injured from work 17 to accidents. These accidents are largely the result of human 18 or misjudgmentnoise and fatigue, boredom or worry are possible factors which 19 to this. Doctors who work in factories have found that th

40、ose who drink too much, usually people who have a high 20 level, run three times the normal risk of accidents at work. A. regulations B. due C. office D. reach E. minority F. increasing G. anxiety H. predict I. definition J. access K. odds L. report M. error N. effects O. contribute（分数：20.00）解析：D解析

41、out of reach 是固定搭配，意为“触碰不到”，够不到的架子可能造成危险，故选 D。解析：K解析 be at odds with 是固定搭配，意为“与不和”，此处意为“与自己较劲”。解析：I解析 这里需要一个名词，后面是对于 accident 的解释，可以猜测此处意思是“定义上”，by definition 是固定搭配。解析：H解析 这里需要动词原形，符合题意的只有 predict，表示“意外不可预测”。解析：E解析 根据空前的冠词 a 可以推测这里填名词，可以与粗心的司机搭配的只有 minority，意为“少数的”，故选 E。解析：A解析 根据空前的冠词 the 和后空的 are 可

42、以看出这里填复数名词，在根据 observe“遵守”，可知符合题意的只有 regulations，意为“遵守规则”。解析：B解析 due to 意为“因为”，是固定搭配，此处的意思是“因为意外在工作中受伤”。解析：M解析 or 表示并列关系，后面是名词，故这里也填名词，意为“因为人的 -|_|-造成事故”，符合题意的是 error，故选 M。解析：O解析 这里的分句缺少谓语动词且与介词 to 搭配，可选的动词只剩下 access 和 contribute，只有 contribute 符合题意，意为“造成的因素”。解析：G解析 这里需要词修饰 level，可以是形容词，也可以是名词与 level

43、 配合，根据上下文和选项，可以造成意外的是处于高度焦虑的人们，故选 G。Zoos have existed for so long that no one knows the origins of the first ones. At one time, zoos were 21 to entertain kings, queens, princes and princesses. Today, there are probably over 500 public zoos 22 the world. The one with the greatest 23 of animals is in

44、Berlin. Years ago, zoos always 24 animals in barred cages, but now zoos try to keep their animals in more natural surroundings. As a result, there is great 25 in the ways animals are treated, housed and bred. One of the best zoos in the United States is at San Diego in California, where the climate

45、makes it possible for the animals to live 26 most of the year. As civilization spreads and natural wildernesses are reduced, zoos have become more important. They 27 places where rare animals can be saved from extinction. Game reserves have 28 in parts of Europe for hundreds of years for hunting pur

46、poses. Today, however, they are usually places where wildlife are safe from hunters and can live and breed 29 by man. One of the largest 30 in the world is the Kruger National Park in South Africa, where elephants, zebras and lions are among the attractions. A. preparation B. variety C. around D. pr

47、ovide E. used F. outdoors G. kept H. saving I. undisturbed J. improvement K. reserves L. passionate M. reasonable N. existed O. unhappy（分数：20.00）解析：E解析 根据空前 were 后的不定式可知，此处应填入动词被动语态，故填动词的过去分词，而后面的内容是动物园的用途，故填 used。解析：C解析 根据句意可知，此处缺少状语，around the world 为固定搭配，意为“全世界”，作地点状语。解析：B解析 根据空前形容词可知，此处应填名词，合适的名

48、词只有 variety，意为“世界上动物种类最多的动物园在柏林”。解析：G解析 根据语境可知，这里需要一个谓语动词，且为过去时，后面的内容是在笼子里，故此处应填“把动物关在笼子里”，故选 kept。解析：J解析 根据空前形容词 great 可知，这里填名词，描述现在人们对待动物的方式，根据后面的内容看，现在人们很注意动物的生存环境，因此比以前有了很大进步，故这个名词为 improvement。解析：F解析 从整句结构可判断，此处缺少状语，所以应填入副词，故选 outdoors，意为“在户外生活”，作地点状语。解析：D解析 根据整句结构可知，此空应填入谓语动词，再根据时态可知，此处应填动词原形，

49、故只能选 provide，意为“动物园为动物提供了生存场所”。解析：N解析 根据 for hundreds of years 和空前的 have 可知，这里应该填动词的过去分词，而此句是在说狩猎保护区在欧洲的历史，动词应该表示存在，故选 existed。解析：I解析 根据后面的 by 可以猜测这里是一个被动式，此处为过去分词，剩下的动词只有undisturbed 合适，意为“在动物园中生活不被人打扰”。解析：K解析 根据空前 one of the largest 可知，此空应填入名词复数，剩下的名词中只有 reserves符合题意，意为“世界上最大的保护区之一”。When we think of green buildings, we tend to think of new onesthe kind of high-tech, solar-paneled masterpieces that make the covers of architecture magazines. But the U.S. has more than 100 million existing homes,