发布时间 : 星期六 文章大学英语B统考2011.9月 大学英语B网考 电大开放教育 网络远程教育 网络教育学院（完型填空）更新完毕开始阅读aef9a353d4bbfd0a79563c1ec5da50e2524dd19e
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1、Many people would agree that stress is a major problem in modern life. It is certainly true that worry and quarrel can cause all kinds of illnesses, 1 backache to severe headaches, or even more serious complaints such as high blood pressure.
Many of us think 2 stress as something that other people impose on us. We often complain about how other people put us 3 pressure. But we should try not to let such pressure affect us. We should not forget that we are largely responsible for some of the stress ourselves. We sometimes take 4 more work than our bodies and our minds can handle. We should learn to 5 our limitations. We should be aware of which things are really important and which are not. (1)、 A：of B：under C：accept D：from E：on 答案：D (2)、 A：of
B：under C：accept D：from E：on 答案：A (3)、 A：of
B：under C：accept D：from E：on 答案：B (4)、 A：of B：under C：accept D：from
E：on 答案：E (5)、 A：of
B：under C：accept D：from E：on 答案：C
7、Modern zoos are very different from zoos that were built fifty years ago. At that time, zoos were places 1 people could go to see animals from many parts of the world. The animals lived in cages that were made 2 concrete with iron bars, cages that were easy to keep clean. Unfortunately for the animals, the cages were small and impossible to hide in. The zoo environment was anything but natural. 3 the zoo keepers took good care of the animals and fed them well, many of the animals did not thrive; they behaved in strange ways, and they often became ill.
In modern zoos, people can see animals in more natural habitats. The animals are given more 4 in large areas so that they can live more comfortably as they would in nature. Even the appearance of zoos has changed. Trees and grass grow in the cages, and streams of water flow 5 the areas that animals live in. (1)、 A：of B：Although C：where D：over E：freedom 答案：C (2)、 A：of B：Although C：where D：over E：freedom 答案：A
(3)、 A：of B：Although C：where D：over E：freedom 答案：B (4)、 A：of B：Although C：where D：over E：freedom 答案：E (5)、 A：of B：Although C：where D：over E：freedom 答案：D
10、 The world is not only hungry; it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth's surface is covered with water. But about 97% of this huge amount is seawater, 1 salt water. Man can only drink and use the other 3% of the fresh water that comes from rivers, lakes, underground, and other 2 .
And we can't even use all of that, because some of it is in the form of icebergs and glaciers. Even worse, some of it has been polluted.
However, as things stand today, this small amount of fresh water,which is constantly being replaced by rainfall, is still enough for us. But our need 3 water is increasing rapidly - almost day by day. We all have to learn how to stop wasting our previous water. One of the first steps we should 4 is to develop ways of reusing it.
Experiments have already been done in this 5 , but only on a small scale. The systems that have been worked out resemble those used in spacecraft. (1)、 A：take
B：or C：sources D：for E：case 答案：B (2)、 A：take B：or C：sources D：for E：case 答案：C (3)、 A：take B：or C：sources D：for E：case 答案：D (4)、 A：take B：or C：sources D：for E：case 答案：A (5)、 A：take B：or C：sources D：for E：case 答案：E