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Paage One
Questions 56 t0 60 are based on the following paage．
It was once thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic．Today, we know that although these are the areas with the worst air pollution，the problem is literally worldwide．On several occasions over the past decade，a heavy cloud of air pollution has covered the entire eastern half of the United States and led to health warnings even in rural areas away from any major concentration of manufacturing and automobile traffic．In fact，the very climate of the entire earth may be affected by air pollution．
Some scientists feel that the increasing concentration of carbon dioxide in the air resulting from the burning of foil fuels(coal and oil)is creating a“greenhouse effect”-holding in heat reflected from the earth and raising the world’s average temperature．If this view is correct and the world’s temperature is raised only a few degrees。much of the polar ice cap will melt and cities such as New Y0rk，Boston，Miami，and New Orleans will be under water．
Another view, le widely held，is that increasing particulate matter in the atmosphere is blocking sunlight and lowering the earth’s temperature—a result that would be equally disastrous．A drop of just a few degrees could create something close to new ice age and would make agriculture difficult or impoible in many of our top farming areas．
At present we do not know for sure that either of these conditions will happen，though one recent government report prepared by experts in the field concluded that the greenhouse effect is very likely．Perhaps，if we are very lucky, the two tendencies will offset each other and the world’s temperature will stay about the same as it is now．
56．According to the paage，people today think that air pollution________．
A)exists merely in urban and industrial areas
B)may have an effect on the entire earth
C)causes widespread damage in the countryside
D)is not so serious as it used to be
57．The“greenhouse effect” results from________．
A)the concentration of carbon dioxide in the air
B)the increasing particulate matter in the atmosphere
C)the burning of firewood
D)the blocking of sunlight
58．What does the author think of the poibility of a new ice age?
A)He rejects it as being ungrounded．
B)He holds the same view．
C)He is uncertain of its occurrence．
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D)He thinks that would happen soon．
59．The word“offset”(Line 3，Para．4)means________．
A)slip into
B)catch up with
C)set up
D)make up for
60．The paage is mainly about__________．
A)the potential effect of air pollution
B)the poibility of a new ice age
C)the effects of global warming
D)the causes of climate change
Paage Two
Questions 61 t0 65 are based on the following paage．
Becker had one occasional anxiety：the suspicion that he owned more than would fit comfortably into the case．The feeling，when it came，was the signal for him to throw something away or just leave it lying about．This was the automatic fate of his worn—out clothes for example．Having no use for choice or variety,he kept just a raincoat，a suit，a pair of shoes and a few shirts，socks and so on，no more in the clothing line．He bought and read many books，and left them wherever he happened to be sitting when he finished them．They quickly found new owners．
Becker was a profeional traveler, interested and interestin9．He was not one t0 “do” a country in a week or a city in three days．He liked to get the feel of a place by living in it，reading its newspapers，watching its TV and discuing its affairs．He always tried to make a few friends，if neceary even by stopping a suitable—looking person in the street and talking to him．It worked well in about one case inten．Though Becker’s health gave him no cause for alarm，he made．a point of seeing a doctor as soon as he arrived anywhere．“A doctor knows a place and its people better than anyone，”he used to say．
He never went to see a doctor，he always sent for one，that，he found，was the quickest way to gain confidences，which came out freely as soon as he mentioned that he was a writer．
Becker was an artist as well．He painted pictures of his places and，when he had gathered enough information，he wrote about them．He sold his work，through an agent，to newspapers and magazines．It was an agreeable sort of life for a good social mixer, lived nearly always in fine weather, and as Becker never stayed anywhere for long，he enjoyed the satisfying advantage of paying very little in tax．
61．According to the paage，the anxiety of Becker was__________．
A)the doubt that he owned too much clothes B)the thought of having too much baggage
C)the miserable fate of his worn out clothes D)the decline in his memory
62．What is the fate of Becker’s books?
A)They were kept in his case．
B)They were sent to his friends．
C)They were donated to others in need．
D)They were left anywhere．
63．Becker would see a doctor as he arrived at a new place because__________．
A)his health was in danger
B)he wanted to make friends with the doctor
C)he intended to get confidences from the doctor
D)he wanted to know the place and its people through the doctor
64．How did Becker feel about taxation?
A)He was pleased he only had to pay little．
B)He felt ashamed of not paying taxes．
C)He worried about it，so he moved from one place to another．
D)He hated it so much that he broke the tax laws．
65．Which of the following is TRUE according to the paage?
A)Becker was always worried about something that would not happen．
B)Becker kept a good many books．
C)Becker would talk to strangers in the street．
D)Becker often traveled through a country in a couple of days．
56． 【解析】 B。细节题。第一段第二句提到，“现今，虽然我们已经知道这些地方的空气污染最为严重，但是空气污染实际上是全球性的问题。”故答案为B。
57． 【解析】A。细节题。第二段第一句指出，科学家认为，煤和油的燃烧会不断增加空气中的二氧化碳含量，由此导致温室效应。故答案为A。
58． 【解析】 C。态度题。最后一段中作者指出，目前我们并不确定这两种情况是否会发生„„。这两种情况指的就是上文所述：温室效应和冰河世纪再次降临的可能性。故答案为C。
59． 【解析】 D。语义题。此句意思是：但如果我们非常幸运，这两种趋势或许会相互offset，地球气温会像现在一样，保持不变。由此可知，“offset”在文中的意思应为“弥补，抵消”。故答案为D。
60． 【解析】A。主旨题。综观全文，文章主要讲述了空气污染可能造成的严重后果。选项B、C均只概括了文章的部分内容，D项文章未提到。故答案为A。
61． 【解析】 B。细节题。第一段第一句提到，Becker有一个担忧：他时常怀疑自己的东西会多得让箱子装不下。言外之意，担心行李过多。故答案为B。
62． 【解析】 D。推理题。第一段最后两句提到，Becker买了很多书，也读了很多书，并且他在什么地方正好看完了一本书，就会把那本书扔在那里。所以，他的书很快就找到了新的主人。言外之意，他的书被丢得到处 都是。故答案为D。
63． 【解析】 D。细节题。第二段第六、七句提到，尽管Becker的身体没有给他任何危险警号，但他决定每到一个地方必定去看医生。他认为医生比其他人都更了解当地的居民。由此可知，他看医生的目的是想通过医生了解当地居民。故答案为D。
64． 【解析】A。态度题。文章最后一句提到，因为Becker在任何地方呆的时间都不长，所以他只需缴纳一点点税，这个待遇令他非常满意。故答案为A。
65．【解析】C。细节题。第二段第四句提到，Becker总是试图多交朋友，为此他甚至会在大街上叫住一个看上去不错的人，然后跟人攀谈。故答案为C。
