Question

Each year there is an increasing number of cars on roads and streets as millions of new cars and trucks are produced. One out of every six Americans work at putting together the parts of cars, driving trucks, building roads or filling cars and trucks with gas. 1.. Because most Americans find they are using their cars in almost every aspect of their life. 2.. The polluted air becomes poisonous and dangerous to health.

3.. That’s what several of the large car factories have been trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.

Another way is to take the place of the car engine by something else.4.. Many makers believe that it will take years to develop a practical model that pleases man.

To prevent the world from being polluted by cars, we’ll have to make some changes in the way many of us live. Americans, for example, have to cut down on the number of their total cars. They are encouraged to travel and go to work by bicycle. Bicycling is thought to help keep the air clean. But this change does not come easily. A large number of workers may find themselves without jobs if a car factory closes down.5..

Although cars have led us to a better life, they have also brought us new problems.

A. Americans know cars very well.

B. Americans won’t live without cars!

C. Inventors are now working on steam cars as well as electric cars.

D. However, the number of vehicles has continued to increase in recent years.

E. One way to get rid of the polluted air is to build a car that does not pollute.

F. Thus the problem of air pollution would become less important than that of unemployment.

G. However, some have realized the serious problems of the air pollution that is caused by cars.

Answer

1. B

2. D

3. E

4. C

5. F

【解析】

本文是一篇记叙文。全文主要讲述了汽车不仅给人们带来了便利，而且给人们带来了一些严重的问题。

1.下文提示“因为大多数美国人发现他们几乎在生活的各个方面都在使用汽车。”承接下文，B项Americans won’t live without cars!（美国人的生活离不开汽车!）。该项和下文构成因果关系，故选B。

2.上文提示“因为大多数美国人发现他们几乎在生活的各个方面都在使用汽车。”再根据下文提示“被污染的空气变得有毒，对健康有害。”承接上下文，D项However, the number of vehicles has continued to increase in recent years.“然而，近年来汽车的数量一直在增加。”该项中的However表示一种转折关系，结合句意可知答案为D。

3.下文提示“这就是几家大型汽车厂一直在努力做的事情。”承接下文，E项One way to get rid of the polluted air is to build a car that does not pollute.（消除空气污染的一个方法是制造一辆不污染的汽车。）切题。故选E。

4.上文提示“另一种方法是用别的东西代替汽车发动机。”承接上文，C项Inventors are now working on steam cars as well as electric cars.（发明家们正在研制蒸汽汽车和电动汽车。）切题。故选C。

5.上文提示“如果汽车厂倒闭，许多工人可能会失业。”由此推知，F项Thus the problem of air pollution would become less important than that of unemployment.（因此，空气污染问题将变得没有失业问题那么重要。）切题。该项中的Thus表示产生一种结果。故选F。