71. You do not remain at this deep fourth stage all night long, but instead about 80 minutes after you fall into slumber, your brain activity level will increase again slightly.(Passage 2, Para.2, the First Sentence)
72. In creating a lens a lens designer attempts to “trap” light by forcing all the rays arising from a single point in the subject to focus on a single point in the image, as a consequence of their passing through a series of transparent (透明的) elements with precisely curved surfaces.(Passage 3, Para.1, the Third Sentence)
73. The number of possible consequences flowing from any one decision is so large, however, as to be virtually, if not actually, infinite.(Passage 3, Para.1,the Fifth Sentence)
74. We have also expanded the treatment of technical articles — recognizing the potential contribution of article writing to the career of the writer and the value of the article to science and technology.(Passage 4,Para.2,the Last Sentence)
75.Though a study of this chapter is no substitute for training in public speaking, we believe that its recommendations can nevertheless be of substantial assistance to those who use this book on the numerous occasions when they will be called upon to present their ideas in person before a small group or a large audience.(Passage 4, Para.4,the Last Sentence)
Part Ⅴ Writing (30 minutes)
Directions:In this section you are allowed 30 minutes to write a composition entitled “Layoffs(下岗) in Stateowned Enterprises”. The first sentence is given to you. Your composition should be no less than 100 words. Remember that the contents of the outline should be included in your composition. You should write your composition on the Answer Sheet.
Layoffs in Stateowned Enterprises
1. 下岗是改革的需要；
2. 下岗会带来的问题；
3. 如何对待下岗所带来的问题；
答案部分
Part Ⅰ
1. 答案B。
【试题分析】 本题测试判断事实的能力。
【关键词语】 postponed, so, instead
【详细解答】 注意 but一词表示前面的原计划打乒乓球一事没能做，postponed表示“推迟”，“延期”，So…instead提示出真正做了什么。
【作者建议】此题可用排除法“ I was supposed to play table tennis with Tom”这
句话用了虚拟语气。 was supposed to 表示“本来要……却未成功，所以A、C、D都可排除。
2. 答案C。
【试题分析】 此题为词汇意义理解题。
【关键词语】 depends on
【详细解答】 答案往往是能对该词汇进行正确解释的选项。听懂本对话的关键是听懂习语 It all depends(这得视情况而定)，正确答案选项C实际上是对此习语的释义。
3. 答案C。
【试题分析】 此题是价格计算题。
【详细解答】 关键是要听出 three pairs, two pairs, each pair, this pair, 15 dollars以及6 dollars这些数字和单位以及它们之间的关系。弄清三双鞋中有两双的价格为每双
15美元，而第三双鞋是6美元，那么就容易算出这三双鞋的价格共为36美元。
4. 答案B。
【试题分析】 此题测试预知将做某事的能力。
【关键词语】 books, are on sale, expecting
【详细解答】 女士告诉男士：“我在报上看到一则广告，内容说本周五下午有一些书要
