air成都市高中毕业班第二次诊断性检测(编辑修改稿)

air成都市高中毕业班第二次诊断性检测(编辑修改稿)内容摘要：

rs who spent long periods in the trenches(战壕 ), cold and wet, showed no increased tendency to catch colds. In the Second World War prisoners at the notorious notorious Auschwitz concentration camp(奥斯维辛集中营 ), naked and starving, were astonished to find that they seldom had colds. At the Common Cold Research Unit England, volunteers took part in experiments in which they gave themselves to the disforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be dipped with cold water, and then stood about dripping wet in drafty room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose. In the cold we have nothing to do with catching colds, Why are they more freguent in the winter? Despite the most pains taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on. No one has yet found a cure for the cold. There are drugs and pain suppressors(止痛片 )such as aspirin, but all they do is to relieve the symptoms(症状 ). 59. The writer offered ______ examples to support his argument. A. 4 B. 5 C. 6 D. 3 60. Which of the following does not agree wich the chosen passage? A. The Eskimos do not suffer from colds all the time. B. Colds are not caused by cold. C. People suffer from colds just because they like to stay indoors. D. A person may catch a cold by touching someone who already has one. 61. Arctic explorers may catch colds when A. they are working in the isolated arctic regions. B. they are writing reports in terribly cold weather. C. they are free from work in the isolated arctic regions. D. they are ing into touch again with the outside world 62. Volunteers taking part in the experiments in the Common Cold Research Unit A. suffered a lot B. never caught colds C. often caught colds very strong (C) Why, you may wonder,should spiders be our friends? Because they destroy so many insects, and insects include some of the greatest enemies of the human race. Insects would make it impossible for us to live in the world。 they would devour(吞食、毁灭 )all our crops and kill our cattle, if it were not for the protection we get from insect eating animals. We owe a lot to the birds and beats who eat insects, but all of them put together kill only a very small amount of the number destroyed by spiders. Moreover, unlike some of the insect eaters, spiders never do the least harm to us or our belongings. Spiders are not insects, as many people think, nor even nearly related to them. Onecan tell the difference almost at a glance for a spider always has eight legs and an insect never more than six. How many spiders are engaged in the work on our behalf? One authority on spiders made a research of the spiders and found that there were more than 2,250,000 in one acre。 that is something like 6,000,000 spiders of different kinds on a football field. Spiders are busy for at least half the year in killing insects. It is impossible to make more than the wildest guess at how many they kill, but they are hungry creatures, not content with only three meals a day. It has been estimated that the weight of all the insects destroyed by the spiders in Britain in one year would be greater than the total weight of all human beings in the country. 63. Spiders should be our friends, because_____________ A. they only eat harmful insects B. they39。 are great insect eating animals C. they destroy large numbers of insects which do harm to the human race D. their harmfulness is the least 64. The difference between spiders and insects is that _________ A. insects have only six legs B. insects only eat plants C. spiders eat insects D. spiders have more legs than insects. 65. One authority on spiders estimated A. that there were more than 2,250,000 insects in a grass field in the south of England B. that every football field in England had 6,000,000 spiders C. the quantity of different spiders in England was very big D. that there were 6,000,000 kinds of spiders on a football field 66. In the last sentence the writer means A. experts on spiders know exactly how much spiders eat in one year B. esperts on spiders can only make an estimation of the weight of insects eaten by spiders C. authority on spiders know the weight of all the people in England D. authority on spiders know both the weight of the insects eaten by spiders and the weight of people in England 67. Which one of the following statements is the main idea? A. Spiders, the greatest insects eating animals, protect us from being destroyed by harmful insects and they should be our friends. B. Spiders are not insects but in fact animals. C. There are great numbers of spiders engaged in destroying harmful insects on behalf of the human race. D. The weight of the insects eaten by spiders in one year is greater than the weight of all people in England. (D) In recent years many countries of the world have been faced with the problem of how to m ake their workers more productive. Some experts claim the answer is to make jobs more do more various jobs lead to greater productivity? There is evidence to suggest that while variety certainly makes the worker39。 s life more enjoyable,it does not actually makes him work harder. as far as increasing productivity is concerned, then variety is not an important factor. Other experts feel that giving the worker freedom to do his job in his own. way is important, and there is no doubt that this is true. The problem is that this kind of fre。