Part I writing (30 minutes)
Direction: For this part, you are allowed 30 minutes to write a short essay on the topic Starting Career in a Big City or Small Town? You should write at least 150 words following the outline given below in Chinese:
1. 很多的大学生毕业后留在大城市工作； 2. 也有人选择到小城镇开始自己的职业生涯； 3. 结合自己的实际情况谈谈自己的想法。
注意：此部分试题在答题卡1上。
Part 1I Reading Comprehension (Skimming and Scanning) (15 minutes)
Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1 - 7, mark
Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage.
For questions 8 - 10, complete the sentences with the information given in the passage.
Is Your Life Worth 30 Minutes a Day?
Don’t be afraid of the E word -- it could mean your survival. People who aren’t engaging in regular exercise can reap significant health benefits if they accumulate 30 minutes of moderate-intensity physical activity most days of the week.
What can help prevent stroke (中风), heart disease and some cancer? What can lift depression，ease arthritis (关节炎) pain and increase both the length and quality of life ----- to name just a few of its benefits?
\"If packed into a pill,\" sums up Dr. Robert Butler, former director of the National Institute on Aging, \"it would be the single most widely prescribed (写处方) and beneficial medicine in the nation. \" Best of all, it is free and available to everyone.\" Exercise Can Help People Stay Healthy
Give up? The answer is the E word: exercise. But you don‟t have to change into gym shorts or, heaven forbid, sweat for an hour. Instead, the U.S. Surgeon General‟s report Physical Activity and Health offers this simple exercise prescription: people who aren‟t engaging in regular exercise can reap significant health benefits if they accumulate 30 minutes of moderate-intensity physical activity most days of the week.
Americans Expend Much Less Energy and Time on Exercise
Americans today expend much less energy than did previous generations, perhaps as much as a few hundred calories per day less. All the \"advances\" that make our lives easier ---- like
e-commerce (电子商务) , and automatic doors -- contribute to the current epidemic (流行病) of obesity (肥胖) and related disease.
Experts say that if you expend just ten extra calories a day by being more active, over a year you can lose a pound ------ mostly fat. And if you burn 150 extra calories a day -- the equivalent of a 30-minutes‟ walk ------- in a year that‟s ten pounds. (If you also eat 150 calories less ---- that‟s about half a candy bar ----- you could lose an additional ten pounds.)
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The sad fact is that only about 15 percent of American adults engage regularly in vigorous physical activity for at least 20 minutes three times a week. More than 60 percent are not regularly physically active, and 25 percent are totally sedentary (久坐的). The Benefit of Moderate Exercise
Yet the benefits of moderate exercise are amazing. Consider how exercise helps the following: diabetes (糖尿病). The number of Americans diagnosed with diabetes has increased six fold since 1958, to a record high of ten million presented by www.hongduen.com. This alarming rise is linked to our expanding waistlines, junk food diet and inactivity. Some experts feel that the most common form of diabetes is preventable with a proper diet -- and regular activity. In diabetics, the hormone insulin (荷尔蒙胰岛素) does not properly regulate glucose (葡萄糖) levels in the blood. When people exercise, the body fuels the activity by taking glucose out of their blood to use for energy. Exercise Can Help Patients Suffering from the Following Diseases
Heart Attacks and Stroke. One of the simplest, safest, least expensive and most effective strategies for improving heart health is frequently neglected: exercise. It reduces blood pressure and can help raise the level of \"good\" cholesterol (胆固醇)， while lowering \"bad\" cholesterol when combined with dietary changes.
Remember: for every one percent reduction in blood cholesterol, the occurrence of coronary (冠状动脉的) heart disease is reduced by two percent. Moreover, people who exercise one hour per day cut their risk for stroke nearly in half, according to a study of 11.130 Harvard University alumni (男女校友).
Mental Health. When asked why she started swimming during her freshman year at Boston University, world-class endurance swimmer Julie Ridge replied, \"It was a mental thing.\" While sedentary people may assume that working out is about looking good，habitual exercisers like Ridge know that it is largely about feeling good. A growing body of research shows that physical activity does, indeed, exert a \"feel good\" effect that can work as a powerful treatment for depression.
Arthritis. Many people -- including some physicians -- still haven‟t heard the new message that exercise can help people with arthritis now affecting nearly 43 million Americans. \"We‟ve come from thinking that physical fitness was impossible for people with arthritis to know that
exercise is one of the best ways to manage their disease and minimize their disability,\" says Marian Minor, an associate professor of Physical therapy at the University of Missouri, Columbia.
Exercise can reduce pain by keeping joints (关节) flexible and the muscles around the joints strong. A person with arthritis who has other medical conditions or a lot of pain should get a physician‟s referral (建议) to a physical therapist who can design an individualized exercise program.
Cancer. Each year over a million Americans learn they have cancer -- the second leading cause of death in the Unites States after heart disease. In 1996 the American Cancer Society added regular physical activity to the list of preventive measures it advocates. According to one large study of people at various levels of fitness, the least fit men died from cancer at a rate more than three times higher than that of the most fit men. And, notes Informed Decisions, the American
Cancer Society‟s guide to the disease, an earlier study found \"the least fit women had fully16 times the cancer death rate of the most fit women.\"
Scientists still don‟t know the precise mechanisms by which exercise appears to exert an “anticancer” effect, but current thinking points to physical activity‟s effect on the immune and endocrine (内分泌的) system.
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So Choose to Move. Stop viewing exercise as a \"workout\" and start thinking of it as play – a welcome daily recess (暂歇) that frees your body from the confines of its workaday routines. And if you have any health concerns, you should, of course, consult a physician first. 注意：实考中此部分试题均在答题卡1上作答。
1. Americans today expend more energy than their forefathers in the past.
2. In a way, some modern conveniences result in people‟s obesity and related diseases. 3. Exercise is a free and available way for people to be away from illness.
4. Exercise can help increase blood pressure and lower the level of \"good\" cholesterol while raising \"bad\" cholesterol when combined with dietary changes.
5. More and more American adults take part in physical activity regularly
6. Regular and moderate physical activity has beneficial effect on people‟s health. 7. Exercise can help smokers and drinkers get rid of cigarette smoking and drinking.
8. One of the simplest, safest, least expensive and most effective strategies for improving heart health is _______________________________.
9. If a person‟s blood cholesterol is reduced one percent, his possibility of suffering from coronary heart disease will be reduced by _______________________________.
10. Exercise can help people with arthritis to reduce pain by _______________ and ________________________.
Part IV Reading Comprehension (Reading in Depth) (25 minutes) Section A
Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once. A college education is an investment in the future. But it can be a 47 one. The College Board 48 that the costs at a four-year public college in the United States increased 10% this past school year. That was less than the 13% increase the year before, but still much higher than the inflation 49 Public colleges and universities still cost a lot less than private ones.
Financial aid often helps. But financial experts 50 parents to start college savings plans when their child is still very young.
All fifty states and the District of Columbia 51 what are called 5 - 29 plans. These plans are named after the part of the federal tax law that created them in 1996. States use private investment companies to operate the 52 of the programs.
Every state has its own rules 53 5 - 29 plans. Some of the plans are 54 of state taxes. And all are not required to pay federal taxes. However, the government could start to tax withdrawals (取钱) in 2011 if Congress does not change the law.
5 -29 plans include investment accounts that increase or decrease in value with the
investments they contain. Families must decide how 55 they want to put money into stocks, or other investments.
Another kind of 5 - 29 plan lets parents begin to pay for their child‟ s education in 56 and long before their child starts college. This kind of savings program is called a prepaid tuition plan. The money goes into an account to pay for an education at a public college or university in the family‟s home state.
A) aggressively F) consumes K) free
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B) estimates G) costly C) offer H) decline D) automatically I) advise E) rate J) capable
L) majority M) advance N) governing O) general
Section B
Directions: There are 2 passages in this section. Each passages is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C), D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre. Passage One
Questions 57 to 61 are based on the following passages.
Most shoplifters agree that the January sales offer wonderful opportunities for the
hard-working thief. With the shops so crowded and the staff so busy, it does not require any
extraordinary talent to help yourself to one or two little things and escape unnoticed. It is known, in the business, as \"hoisting\".
But the hoisting game is not what it used to be. Even at the height of the sales, shoplifters today never know if they are being watched by one of those evil little balls that hang from the ceilings of so many department stores above the most desirable goods.
As if that was not trouble enough for them, they can now be filmed at work and obliged to attend a showing of their performance in court.
Selfridges was the first big London store to install closed-circuit video-tape equipment to watch its sales floors. In October last year the store won its first court case for shoplifting using as evidence a videotape clearly showing a couple stealing dresses. It was an important test case which encouraged other stores to install similar equipment.
When the balls, called sputniks, first make an appearance in shops it was widely believed that their only function was to frighten shoplifters. Their somewhat ridiculous appearance, the curious holes and red lights going on and off, certainly make the theory believable.
It did not take long, however, for serious shoplifters to start showing suitable respect. Soon after the equipment was in operation at Selfridges, store detective Brian Chadwick was sitting in the control room watching a woman secretly putting bottles of perfume into her bag.
\"As she turned to go,\" Chadwick recalled, \"she suddenly looked up at the sputnik and stopped. She could not possibly have seen that the camera „was trained on her because it is completely hidden, but she must have had a feeling that I was looking at her.
\"For a moment she paused, but then she returned to counter and started putting everything back. When she had finished, she opened her bag towards the camera to show it was empty and hurried out of the store.
注意：此部分试题请在答题卡2上作答。
57. January is a good month for shoplifters because -- A) they don‟t need to wait for staff to serve Them B) they don‟t need any previous experience as thieves C) there are so many people in the store D) there are more goods in the shops
58. The spumiks hanging from the ceiling are intended A) as an amusing kind of decoration
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B) to make films That can be used in evidence C) to frighten shoplifters by their appearance D) to be used as evidence against shoplifters 59. The case last October was important because -- A) the store got the dresses back
B) it repaid the investment on the equipment C) other shops found out about the equipment D) the kind of evidence supplied was accepted 60. The woman stealing perfume
A) guessed what the sputniks were for B) was frightened by its shape
C) could see the camera filming her r D) knew that the detective had seen her 61. The woman‟s action before leaving the store shows that she A) was sorry for what she had done B) was afraid she would be arrested
C) decided she didn‟t want what she had picked up
D) wanted to prove she had not intended to steal anything Passage Two
Questions 62 to 66 are based on the following passage.
In a recent article, mathematician Aczel argues convincingly that the number of planets suitable for life is extremely large. There are about 300 billion stars in our galaxy (银河系 ) and possibly 100 billion galaxies in the universe. Some may quarrel with Aczel‟ s claim that as many as half of these stars can be presumed to have planets, and that on average one in nine of those planets is suitable for life; but few, I think, will disagree with his conclusion that there are a very large number of planets suitable for life.
The trouble starts when we come to estimate the probability that life will emerge on any of these planets. The problem is that we don‟ t have a good theory of the origin of life on earth. Without one, it is anybody‟ s guess how likely this event actually was. Out of thin air Aczel conjures the figure of 1 in a trillion for this likelihood and concludes that the probability of life existing on at least one other planet is virtually 1.
Statistics are extremely powerful and important, and Aczel is a very clear and capable
exponent (倡导者) of them. But statistics cannot substitute for empirical (经验主义的) knowledge about the way the universe behaves. We now have no reasonable way of arriving at robust estimates for the probability of life arising spontaneously when the conditions are right. So, until we either discover extraterrestrial (外星球的 ) life or understand far more about how at least one form of life----terrestrial life----first appeared, we can do little more than guess at the likelihood that life exists elsewhere in the universe. And as long as we‟ re merely guessing, we should not dress up our interesting speculations as mathematical certainties. 注意：此部分试题请在答题卡2上作答。
62. The term \"Out of thin air\" in Line 3 of Paragraph 2 can be best replaced by__________. A) convincingly B) confidently C) groundlessly D) suitably 63. According to the passage, what we can do about the likelihood of extraterrestrial life is to _____.
A) find a good way of reaching a conclusion B) construct a good theory of the origin of life C) replace statistics with empirical knowledge D) find whether the conditions for life are right
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64. Though challenged by many people, Aczel firmly believes that ______. A) about 1 million planets in our galaxy are suitable for life B) it is very likely for life to exist on other planets
C) life exists in approximately 150 billion stars in our galaxy D) there are a very large number of planets suitable for life
65. What is the author‟s attitude towards assumptions based on statistical evidence?
A) positive B) objective C) doubtful D) optimistic 66. The author‟ s purpose in writing this article is to _______.
A) tell the reader not to rely only on statistics when dealing with the universe B) encourage the reader to do some researches about the extraterrestrial life C) tell the reader something about possible extraterrestrial life on other planets
D) show his interest in Aczel‟ s research in extraterrestrial life on other planets
Part V Cloze (15 minutes)
Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A), B), C) and D) on the right side of the paper. You should choose the One that best fits into the passage. Then mark the corresponding letter on the Answer Sheet 2 with a single line through the center.
Today, most countries in the world have canals. Many countries have built canals near the coast, and parallel 67 the coast. Even in the twentieth century, goods can be moved more cheaply by boat than by any other 68 of transport. These waterways make it 69 for boats to travel 70 ports along the coast without being 71 to the dangers of the open. Some canals, such as the Suez and the Panama, save ships weeks of time by making their 72 a thousand miles shorter. Other canals permit boats to reach cities that are not 73 on the coast, still other canals 74 lands where there is too much water, help to 75 fields where there is not enough water, and 76 water power for factories and mills. The size of a canal 77 on the kind of boats going through it. The canal must be wide enough to permit two of the largest boats using it to 78 each other easily. It must be deep enough to leave about two feet of water 79 the keel of the largest boat using the canal. When the planet Mars was first 80 through a telescope, people saw that the round disk of the planet was criss-crossed by a 81 of strange blue-green lines. These were called \"canals\" 82 they looked the same as canals on earth 83 are viewed from an airplane. However, scientists are now 84 that the Martian phenomena are really not
canals. The photographs 85 from space-ships have helped us to 86 the truth about the Martian \"canals\".
注意：此部分试题请在答题卡2上作答。 67. A)off B)with C) to D) by 68. A) way B) means 69. A) possible B) difficult 70. A) among B ) between 71. A) revealed B) exposed 72. A) trip B) journey 73. A) lain B) stationed
C ) method D) approach C) likely D) improbable C) in D) to C) opened D) shown C) voyage D) route C) set D) located
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74. A) escape B) drain 75. A) water B ) wet 76. A) furnish B) afford 77. A) focuses B) bases 78. A) cross B) pass 79. A) down B ) below
C) dry D) leak C) soak D) irrigate C) offer D) give C) depends D) takes C) move D ) advance C) beneath D) off
80. A) studied B) researched C) surveyed D) observed 81. A) few B) number 82. A) although B) because 83. A) that B) where 84. A) exact B) definite 85. A) held B ) taken 86. A) find B) expose
VI. Translation
Directions: Complete the sentences on Answer Sheet 2 by translating into English the Chinese given in brackets.
C) deal D) supply C) so D) if C) when D) as C) certain D ) decisive C) got D) developed C) uncover D ) discover
注意：此部分试题请在答题卡2上作答，只需写出译文部分
87. A lot of people nowadays have muscular problems in the neck, the shoulders and the back, _______________________________________(主要是由于工作中的压力和紧张造成的).
88. More than 3 million children have health insurance now, and ___________________________ ,(超过250万的家庭已经摆脱贫困).
89. _____________________________________________ (除主席之外的所有董事会成员都投票赞成我的建议),to set up a branch office in the suburbs.
90. The emergence of e-commerce and the fast-growing Internet economy are ________________ (为中国的国内外贸易提供了新的增长机遇).
91. The population of elderly people is increasing rapidly because people are living longer than before._____________________________________________(发达国家尤为如此).
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大学英语四级考试预测试卷参考答案与详解
Part I Writing （范文）
Starting Career in a Big City or Small Town?
Want to be a small fish in a big pond or the other way round? Every graduate faces this question when he starts his career. A large number of college graduates prefer to stay in the big cities. To them, big cities mean more experiences, more opportunities to see the big world and more space for career development. At the same time, higher salary is another temptation.
But some other graduates want to start in small towns. Even though there may not be many big companies, they can have a quieter and less competitive life. Another reason is that they can be a big fish in a small pond. They can easily get the management's attention and may win promotion earlier.
As far as I am concerned, I prefer to start in a metropolis like Shanghai. A good begin is half the battle, and in Shanghai I can find a job in a big company where I can meet people from different places and cultures. I will learn from them what I can not get from textbooks. Part II Reading Comprehension (Skimming and Scanning)
1．N 作者在提出锻炼有益健康后，在文章的第四段到第六段指出，现在的美国人要比前几代人消耗的能量少多了。与问题内容相矛盾，因此它是错误的。
2. Y 在文章的第四段，作者指出所有的使我们的生活变得更轻松的“进步”——像电子商务，自动门——都导致了现在的流行病肥胖症及相关疾病的产生。因此它是正确的。
3．Y 文章的第二段最后一句话提到锻炼对每个人来说都是无需花钱、能够拥有的。故它是正确的。
4．N 在涉及心脏病和中风那一段，文章提出运动可以降低血压，当运动与饮食变化相结合，就可以提高“好”胆固醇的水平，而降低“坏”胆固醇。与问题内容相矛盾，故它是错误的。 5．N 文章第六段指出：可悲的是只有15％的美国成年人每周至少三次、每次至少20分钟有规律地参加体育活动。与问题内容相矛盾，因此不正确。
6，Y 在适度运动的好处中，作者明确提出适度运动的好处是惊人的，然后将它对不同类型病症的好处分别阐述。因此它是正确的。
7．NG 锻炼身体能够帮助人们戒烟、戒酒，这是文中没有提到的。 8. exercise 在适度锻炼的好处那一部分，有关心脏病与中风的段落中，提到锻炼是最简单、最安全、最省钱、最有效的治疗心脏病的方法。因此这里应填exercise．
9．two percent 在有关心脏病与中风的段落中，提到血液中胆固醇的含量每下降1％，发生冠状动脉心脏病的可能性就降低2％，因此此处应填two percent．
10．keeping joints flexible (and) the muscle around the joints strong 在适度锻炼的好处那一部分，有关关节炎的段落中，提出锻炼能够使关节灵活、关节周围的肌肉强壮，从而减轻疼痛。故此处填keeping joints flexible (and) the muscle around the joints strong．
Part III Listening Comprehension. （35minutes）
11.C 12.D 13.D 14.A 15.B 16.B 17.B 18.C 19.C 20.A 21.C 22.B 23.A 24.A 25.C 26.A 27.B 28.C 29.B 30.D 31.C 32.B 33.A 34.C 35.D
36. confusing 37. size 38. stick 39. indicate 40. silver-colored 41. meters 42. fares 43. normal 44. One has to keep considerable change on hand
45. Bus drivers, however, are often not allowed to give change in many cities
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46. they also come in $50 and $100 bills, but these are seen less often by most of us
Part IV Reading Comprehension (Reading in Depth) (25 minutes) Section A
47．G 根据结构分析可知此处需填人一个形容词或相当于形容词功能的词来修饰one，可选范围缩小到G、J、K、N和O，根据文章的主题：5—29计划对支付昂贵的高等教育费用的帮助，以及本段中下文对高等教育费用的具体介绍，特别是第3个空前的higher，可判断答案为G。 48．B 此处需要填人一个动词，而且因为主语是第三人称单数，故可选范围缩小到B和F，把两个单词分别放人空白处，根据我们的逻辑可判断B为正确答案。
49．E 根据句子结构分析，可判断此处可填人一个名词或动名词，也可填人一个副词作整个句子的状语，可选范围为A、C、D、E、L、M和N，但是根据前半句That was less than the13％ increase the year’before对教育费用增长率的介绍可推断后半句应该是与物价上涨(inflation)的增长率(rate)的对比，故正确答案为E。
50．I 此处需要填入一个动词，而且因为主语是复数，故可选范围缩小到C、H、I和M，根据上下文的逻辑关系以及和动词不定式的搭配(只有advise和动词不定式搭配)可判断正确答案为I。
51．C 此处需要填人一个动词，而且因为主语是复数，故可选范围缩小到C、H和M；另外这里需要的是一个及物动词，故可排除M，根据下文对这些plans的介绍可以判断这里是提供而不是拒绝这些计划，故可判断正确答案为C。
52.L 根据结构分析可知此处需填入一个名词或动词，故可选范围缩小至C，L，M和N；根据逻辑可以判断operate和offer，advance搭配不合理，而governing和plan搭配不合理，故可判断正确答案为L。
53．N 根据句子结构分析可判断此处可填入一个介词或者动名词以修饰rules，根据上下文可知这里要表达的意思是每个州都有自己的指导5—29计划的法规，据此可判断正确答案为N。 54．K 根据句子结构分析可判断此处需要填人一个形容词或动词的分词形式，选择范围缩小到J、K和O，根据下文AndaUarenotrequiredtOpayfederaltaxes可判断正确答案为K。
55．A 此处需要填入一个副词作状语，选择范围缩小到A、D，分别放人空白处，可判断正确答案为A。 56．M 位于介词in之后，此处只能填人名词或动名词，根据下文and long before their child starts college可判断这里表达的意思是预先缴费，故正确答案为M。
Section B Passage One
57．C 该题问考生“一月份对shoplifters(从超市偷东西的小偷)是美妙的月份，原因是 ---。”解答该题应定位在第一段第二行，“with the shops so crowded and the staff so busy(商店如此拥挤，营业员十分忙碌)„”。C项应该是正确答案。A项表示：他们不需要等候营业员服务。B项表示：他们不需要以往做贼的经验。D项表示：商店里有更多的东西。
58．B 问题问这些悬挂在天花板上的小球的功能是什么。依据第三段“．．．，they can now be filmed at work and obliged to attend a showing of their performance in court．”(作案时被摄制下来，并且被迫在法庭上观看)，可以确定，选项B应为正确答案。A项说“作为一种有趣的装饰物”显然不对。文章第五段确实谈到了当这些闪烁不定的小球刚亮相时，许多人认为它是用来吓唬人的。但随后的第六段对此进行了否定，所以C项“用外表来吓唬小偷们”不是正确答案。前面讲到这些小球是用来摄像的，而小球本身不可能作为证据指控shoplifters。所以D项也不对。
59．D 该题有一定难度。主要干扰项体现在C、D两项。C项说“其他商店搞明白了该设备的功能”。D项说“这种证据被(法庭)接受了”。依据题干，答案应定位在文章第四段，尤其是最
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后一句\"It was an important test case which encouraged other stores to install similar equipment．”其中最关键的词应该是“test case”(判例案件)，说明该诉讼案件的判例可供以后类似案件的判例作为比照，直接导致其他商家纷纷安装相似设备是因为这种证据(录像带)被法庭接受了。据此，D项为正确答案，。
60．A 依据文章第七段，偷香水的女人不可能看到对着她的camera，因为\"it is completely hidden”。所以C项错。B项在前面题目中就已排除。第六段提到detective Brian Chadwick坐在监控室，D项也不对。再依据第七段第一、二行，可推断该妇女猜到了这些小球是干什么的。所以A项正确。
61．B 该题干扰项主要在B、D两项。该妇女在离开商店前返回到柜台，把包里的东西放回，明确说明她有偷东西的企图，只是离开时看到这些小球才突然停下来。所以D项是不对的。 Passage Two
62．C 语义题。根据上下文可知，作者对Aczel的观点和statistics(数据)持怀疑的态度。而且这里在对Aczel的观点进行描述时，根据前一句“Without one，讧is anybody’s guess how likely this event actually was．”可知因为Aczel的观点不是基于一个令人信服的有关地球生命起源的理论之上的。Out of thin air所在句用的动词为conjure(想像)，所以这里out of thin air应为“无中生有的”、“没有根据的”的意思。故答案为C。 63．B 细节题。根据最后一段第四句“SO，until we either discover extraterrestrial life Or understand far more about how at least one form Of life—terrestrial life—first appeared，we can do
littlemorethanguessatthelikel~oodthatlifeexistselsewhereintheuniverse，’’大意是：除非我们发现了外星生物，或至少了解一种地球生命的起源，否则我们对外星生命存在的可能性的判断都只能是猜测而已。可知我们现在所缺乏的是a good theory of the origin of life on earth，故答案为B。
64．B 细节题。题干问“尽管遭到质疑，Aczel仍然坚信的观点是什么”。根据第一段的描述进行简单的数学计算可知选项A和C均为误。根据第二段最后一句“Aczel conjures．．．and concludes that the probability Of life existing On at least one other planet is virtually1”, 可知Aczel是坚信其他行星上肯定有生命存在的，但是根据第一段中Some may quarrel with Aczel’s claim that as many as haft of these stars can be presumed to have planets可知这一观点遭到了质疑，故选项B正确。选项D有一定的迷惑性，虽然它是Aczel坚信的观点，但是正如作者所说，few will disagree with his conclusion that there are a very large number Of planets suitable for life，故选项D为误。答案为B。
65．C 观点态度题。根据最后一段But statistics cannot substitute for empirical和we should not dressup our interesting speculations朋mathematical certainties可知，作者对基于统计数据的假设是持一种怀疑的态度，故答案为C。 66．A 写作意图题。根据文章的主旨、本文的基调以及最后一句：And as long as we’re merely guessing，we should not dress up our interesting speculations as mathematical certainties (只要我们还仅仅是在猜测，我们就不应该用数学意义上的确定性来装饰我们的趣味十足的遐 想)，故答案为A。 V．Cloze
67．C 考查固定搭配。parallel to“与„„平行”。
68．B 考查固定搭配。Means of transport“交通工具”。
69．A 考查上下文语义逻辑。指“这些水路使得船只有可能在港口之间航行”，表示“使„„成为可能”，用make it possible而不用make it likely。
70．B 考查介词搭配。between指在两个港口间航行。among指三个或三个以上。
71．B 考查固定词组搭配。 “be exposed to”。expose“使暴露、面临”后接to；reveal 显示”；show“展示”；open意为打开。本句意为暴露在危险面前。
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72．C 考查上下文词义搭配。voyage特指水上航行，其他选项均与水无关。
73．D 考查动词辨义locate“位于”；stationed“驻扎于”；set“放置于”。Lie则不用被动式。
74．B 考查上下文词义搭配。drain指排掉(过多的水)；其他选项escape“逃跑”、dry “弄干”、leak“泄漏”均不符合题意。
75．D 考查动词上下文搭配。irrigate“灌溉”，其他选项不符合题意。 76．A 考查动词介词搭配。四个选项中能与介词for搭配的只有furnish。 77．C 考查固定词组用法。Depend on“取决于”；base on“把„„基于”；take on“承担”；focus on“集中注意力”。 78．B 考查上下文词义。本句的意思是“运河必须有能够允许两条最大的船通过的宽度”。 只有pass“通过”符合句意。cross“穿过、横跨”与句意不符。
79．C 考查介词用法。beneath指在„„以下，表示位置；down指向下，表方向；below用于抽象概念；off表示距离。
80．D 根据上下文含义考查动词辨义。表示“用„„观测”，要用observe；study、 research指系统研究；survey指调查、检查。
81．B 考查固定词组用法。A few“少许，少数”，修饰可数名词；a deal of不能修饰可数名词；a number of指大量的；无a supply of的用法。
82．B 考查逻辑搭配。根据句意，这里要用表原因的连词来引导一个状语从句。 83．A 考查从句用法。此处用that指代canals。
84．C 考查上下文词义。在四个选项中，只有certain有确信的意思。exact和definite的主 语应为事物，decisive不符合句意。
85．B 考查固定搭配。Take photographs是固定搭配，意为拍照。
86．D 根据上下文考查动词辨义。discover指发现抽象的事物；find指发现实物；expose指暴露；uncover指揭开。后两词不符合句意。 VI． Translation
87. mainly due to stress and tension in their work
88. more than two and a half million families have been lifted out of poverty 89. All the board members except the Chairman voted for my proposal
90. providing new growth opportunities for China\\'s foreign and domestic trade 91. This is especially true of developed countries
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