1、国家公共英语二级（阅读理解）练习试卷 30及答案与解析 0 WASHINGTON Nearly 40 million children in developing countries stand to lose one or both parents due to AIDS (艾滋病 ) over the next 13 years, and almost 3 million children under 15 have caught the disease worldwide, US experts said. “More than 40 million children in 23 dev
2、eloping nations will likely have lost one or both their parents by 2010. Most of these deaths will be the result of the HIV/AIDS and complicated illnesses.“ Brian Atwood, a US official said. Meanwhile, since the first report death of a child by AIDS in Los Angelesl5 years ago, almost 3 million child
3、ren under 15 are estimated (估计 ) to have caught the disease worldwide, and at least 1000 were dying each day. “In countries across Africa, Asia and Latin America, HIV/AIDS is pulling years of progress in economic and social development,“ he added. “Life expectancy (估计寿命 ) which has been steadily on
4、the rise for last thirty years will drop to 40 years or less in nine African countries by the year 2020.“ Atwood said serious work to help stop children from dying in developing countries was being wiped out. “In all 23 countries included in this study, AIDS-related death will take away the gains ma
5、de in child survival over the past 20 years. In Zambia and Zimbabwe, childrens death rates will likely nearly double,“ Atwood said. 1 AIDS is developing fast in _. （ A） Europe （ B） North Africa （ C） developing countries （ D） rich countries 2 The first child who was reported death of AIDS lived in _.
6、 （ A） England （ B） Russia （ C） Japan （ D） America 3 AIDS is not only causing millions of death to human beings, but also _. （ A） speeding the development of society （ B） slowing down file development of society （ C） polluting the air （ D） breaking the balance of nature 4 Which one is TRUE according
7、to the passage? （ A） Scientists hove made great progress in stopping children from dying of AIDS/HIV. （ B） Nearly 40 million children died world wide every year. （ C） Almost 3 million children under 15 have been infected (感染 ) by H1V/A1DS in the world. （ D） In the world, childrens death rates will d
8、oubl 4 No one knows exactly why we sleep. But scientists have learned a lot about how we sleep. When you first fall asleep, your heart starts to beat more slowly and your breathing slows down. If something wakes you, you might not think that you had been asleep. Some people call it dozing (打盹 ). Nex
9、t, you enter into a deeper sleep. Your pulse (脉搏 ) and breathing become even slower. But you can still be awakened quite easily. If you take a catnap, you probably will not get any further than this stage (阶段 ) of sleep. If you sleep longer than about twenty minutes, you get into the third one. Your
10、 body is very relaxed. It would take a loud noise to wake you up. You may have heard of people who walk in their sleep. No one knows what makes people sleepwalk. But a person can sleepwalk only during stage four. This is the last and deepest kind of sleep. If someone wakes you up, you might feel ver
11、y uncomfortable and you need a few minutes to get used to being awake. After about ten minutes of this stage sleep, you go back to stage three and then to stage two. Then something quite different begins to happen. Your heartbeat becomes rapid. Your eyelids flutter (颤动 ), and your eyes move. This st
12、age of sleep is called REM (rapid eye movement) sleep. Most dreams happen during REM sleep. Scientists who study dreams often make noises or talk to sleeping people in the REM stage. They are trying to find out what effects noises can have on dreams, what causes dreams and how dreams might be helpfu
13、l to people. 5 The sleep experiment show that there are _ different stages of sleep. （ A） two （ B） three （ C） four （ D） five 6 When a person is seen dozing, it suggests that he _. （ A） is sleepy （ B） is awake （ C） is falling asleep （ D） has fallen asleep 7 The following phenomena might happen when o
14、ne sleeps. Which happens last during his non-REM sleep? （ A） Sleepwalking. （ B） Nap. （ C） Doze. （ D） Dream. 8 When a dream happens, the right order of stages of sleep is _. （ A） 2-3-4-1-2-3 （ B） 1-2-3-4-3-2 （ C） 1-2-3-4-1-2 （ D） 3-4-1-2-3-4 国家公共英语二级（阅读理解）练习试卷 30答案与解析 【知识模块】 阅读理解 1 【正确答案】 C 【试题解析】 根据
15、文章的第一句可以判断出答案： “Nearly 40 million children in developing counties” ，而且在后面也提到了一些国家的名字，他们多是发展中国家。所以本题的正确答案是 C。 【知识模块】 阅读理解 2 【正确答案】 D 【试题解析】 文中提到 “since the first report death of a child by AIDS in Los Angeles 15 years ago,”“Los Angeles”是美国的一个城市，所以本题答案是 D。 【知识模块】 阅读理解 3 【正确答案】 B 【试题解析】 文中提到 “HIV/AIDS
16、is pulling years of progress in economic and social development ”由此可以判断出只有选项 B是合适的答案。选项 A错误，而C和 D在文章中没有提到。 【知识模块】 阅读理解 4 【正确答案】 C 【试题解析】 文中提到 “almost 3 million children under 15 are estimated ( 估计 )to have caught the disease worldwide” ，由此可以看出选项 C的内容与之相符，故 C是正确答案。文章的最后讲到： “.AIDS-related death will t
17、ake away the gains made in child survival over the past 20 years.”很显然，在攻克艾滋病的研究中取得的成绩并不大，以至于在赞比亚和津巴布韦的儿童死亡率会成倍升高。所以选项 A的内容是不正确的。根据第一句和最后一句的内容可以判断出选项 B和D也是错误的。 【知识模块】 阅读理解 【知识模块】 阅读理解 5 【正确答案】 C 【试题解析】 注意第二段中一些表明顺序的词和短语如： “first ， Next ，you get into the third one.But a person can sleepwalk only durin
18、g stage four. This is the last and deepest kind” 。这些词和短语明显地表明：睡眠一共有 4个阶段。因此正确答案是 C。 【知识模块】 阅读理解 6 【正确答案】 D 【试题解析】 第二段的开头讲到睡眠的第一阶段， “Some people call it dozing.”说明打盹的人也是睡着了的。所以正确答案是 D。选项 C表示 “马上要睡着 ”，因此是不正确的。 【知识模块】 阅 读理解 7 【正确答案】 A 【试题解析】 根据第二段的描述，一个人的睡眠经过第一、二、三个阶段到第四阶段，第四阶段是睡眠最沉的一个阶段，并且会发生梦游的现象。第四阶段后，睡眠又进入到第三和第二阶段，这一阶段被称为 REM，也就是说第一到第四阶段是 non-REM。由以上分析可以看出， non-REM阶段中最后可能发生的现象是 “梦游 ”，故 A是正确答案。 【知识模块】 阅读理解 8 【正确答案】 B 【试题解析】 根据文章所述，大部分梦都出现在 REM阶段。结合第 19题的分析可以看出，一个人 所经历的睡眠阶段应该是从第一到第四阶段，然后再到第三、第二阶段。所以 B是正确答案。 【知识模块】 阅读理解
