29. [A]这个小女孩吓坏了，怎么也不肯松开我的胳膊。 30. [D]一个疏于职守的官员是在工作中不负责任的官员。 31. [C]洪水每年造成了价值几十亿美元的财产损失。
32. [D]为纪念历史上一些重要的日子，各国设立了一些特别的节假日。
Lesson 19
33. That was not the first time he ______ us. I think it’s high time we ______ strong actions against him.
A. betrayed... take C. has betrayed... took B. had betrayed... took D. has betrayed... take
34. The ______ of the scientific attitude is that the human mind can succeed in understanding the universe. A. essence B. content C. texture D. threshold
35. With the development in science and technology man can make various flowers ______ before their time. A. be bloomed B. bloom C. bloomed D. blooming
36. The law of supply and demand will eventually take care of a shortage or ______ of dentists. A. surge B. surplus C. flush
D. fluctuation
37. Before we move, we should ______ some of the old furniture, so that we can have more room in the new house. A. discard B. dissipate C. cancel D. conceal
38. According to the American federal government, residents of Hawaii have the longest life ______: 77.2 years. A. rank B. span C. scale D. scope
39. Allen will soon find out that real life is seldom as simple as it is ______ in commercials. A. drafted
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B. depicted C. alleged D. permeated
40. Niagara Falls is a great tourist ______ drawing millions of visitors every year. A. attention B. attraction C. appointment D. arrangement
41. He never arrives on time and my ______ is that he feels the meetings are useless. A. preference B. conference C. inference D. reference
42. The elderly Russians find it hard to live on their state ______. A. pensions B. earnings C. salaries D. donations
43. As the mountains were covered with a ______ of cloud, we couldn’t see their tops. A. coating B. film C. veil D. shade
44. The test results are beyond ______; they have been repeated in labs all over the world. A. negotiation B. conflict C. bargain D. dispute
45. The prison guards were armed and ready to shoot if ______ in any way. A. intervened B. incurred C. provoked D. poked KEYS：
33. [B]那不是他第一次背叛我们。我认为我们该对他采取强硬措施了。 34. [A]科学态度的本质就在于人类的思维能正确地了解宇宙。 35. [B]随着科技的发展，人们可以让各种鲜花提前开放。 36. [B]供求法则最终会平衡牙医数量的短缺或者过剩。
37. [A]搬家前我们应该先扔掉一些旧家具，这样我们就能给新家腾出更多的空间。 38. [B]美国联邦政府的调查表明，夏威夷居民的人均寿命最长，为 77.2 岁。 39. [B]Allen 很快就会发现真正的生活很少像广告上描述的那么简单。
40. [B]尼亚加拉瀑布是一个对游客有巨大吸引力的地方，每年都吸引上百万的游人。 41. [C]他从来不按时到达，因此我推断他认为这些会议毫无用处。 42. [A]上了年纪的俄罗斯公民发现靠政府的养老金维持生计很艰难。
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43. [C]因为云雾笼罩着群山，我们看不见它们的顶部。
44. [D]测试结果不容争辩——因为它们在全球实验室都是一样的。 45. [C]监狱警卫全副武装，如果受到任何挑衅他们就会随时准备开枪
Lesson 20
46. Though ______ rich, he was better off than at any other period in his life. A. by any means B. by some means C. by all means D. by no means
47. Companies are struggling to find the right ______ between supply and demand, but it is no easy task. A. equation B. formula C. balance D. pattern
48. The group of technicians are engaged in a study which ______ all aspects of urban planning. A. inserts B. grips C. performs D. embraces
49. It is a well-known fact that the cat family ______ lions and tigers. A. enriches
B. accommodates C. adopts D. embraces
50. Britain has the highest ______ of road traffic in the world — over 60 cars for every mile of road.
A. popularity B. density C. intensity D. prosperity
51. He found the ______ media attention intolerable and decided to go abroad. A. sufficient B. constant C. steady D. plenty
52. All the key words in the article are printed in ______ type so as to attract readers’ attention. A. dark B. bold C. dense D. black
53. The institution has a highly effective program which helps first-year students make a
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successful______ into college life. A. transformation B. transmission C. transition D. transaction
54. The wooden cases must be secured by overall metal strapping so that they can be strong enough to stand rough handling during ______. A. transit B. motion C. shift D. traffic
55. Professor Smith explained the movement of light ______ that of water. A. by analogy with B. by virtue of C. in line with D. in terms of
56. Mary became ______ homesick and critical of the United States, so she fled from her home in west Bloomfield to her hometown in Austria. A. completely B. sincerely C. absolutely D. increasingly
57. Back in the days when people traveled by horse and carriage, Karl Benz ______ the world with his extraordinary three-wheeled motor vehicle. A. inhibited B. extinguished C. quenched D. stunned
58. The company management attempted to ______ information that was not favorable to them, but it was all in vain. A. suppress B. supplement C. concentrate D. plug KEYS：
46. [D]尽管说不上富裕，但他比生命中以往的任何时期境况都要好一些。 47. [C]各家公司都在努力寻找供需之间恰当的平衡，但是这项任务十分艰巨。 48. [D]这组技术人员正忙于一项涉及到城市规划的所有方面的研究。 49. [D]众所周知，猫科动物包括狮子和老虎。
50. [B]英国的道路交通密度是世界上最大的——每英里的道路上有 60 多辆车。 51. [B]媒体对他的不断关注使他无法忍受，因此他决定出国。
52. [B]文章中所有的关键词都用粗体字印刷，以便吸引读者的注意。
53. [C]这个学院有一个相当有效果的课程，可以帮助一年级的学生成功过渡到大学生活。 54. [A]这些木箱外面必须要用金属条加固，这样才够结实，能经得起搬运过程中的折腾。
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55. [A]史密斯教授根据水的运动类推解释光的运动。
56. [D]玛丽越来越想家，越来越看不惯美国，所以她从西布鲁姆费尔德的家逃回自己在奥地 利的故乡
57. [D]在人们还在使用马车作为交通工具的时代，卡尔·本茨的奇特的机动三轮车震惊了整个世界。
58. [A]公司的管理层企图压制对他们不利的信息，不过没有成功。
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