单选题请根据下面的短文回答第66-70题
New York, London, Paris and other big cities are exciting places to live in. There are many interesting things to see and do. You can go to different kinds of museums, plays and films. You can also buy things from all over the world.
But there are serious problems in big cities too. It's expensive to live there, and there are too many people in some places in big cities. Every year many people move to the cities to find jobs, to study at good schools and receive good medical care (医学救护). But sometimes these people cannot find work or good places to live in. Also it is hard to keep the cities safe and clean.

单选题 In big cities people can______.

【正确答案】 C

【答案解析】[解析] 根据第一段第三句可知在大城市，人们可以去各种博物馆、剧院，所以答案为C。

单选题 Which of the following is true?

A、 Big cities are not clean and safe enough.
B、 People can easily find good places to live in big cities.
C、 People can always have many chances to find work to do.

【正确答案】 A

【答案解析】[解析] 根据第二段倒数第一句可知大城市的卫生和安全很难保障，所以答案为A。

单选题 In this passage the writer thinks it is fight for people______.

A、 to move to big cities
B、 not to move to big cities
C、 not to move to big cities before they think over the problems of living there

【正确答案】 C

【答案解析】[解析] 文中作者讲了很多在大城市生活的弊端，因此可推断出作者认为去大城市生活之前应该慎重考虑，所以答案为C。

单选题 This passage doesn't tell us that______.

A、 Paris is an exciting place for people to live in
B、 big cities have a lot of serious problems
C、 people in big cities usually are very dirty

【正确答案】 C

【答案解析】[解析] 文章讲到很难维持大城市的清洁，而不是说那里的人很脏，所以答案为C。

单选题 Which is the best title for this passage?

【正确答案】 A

【答案解析】[解析] 文章讲的是大城市的利与弊，而B、C只是其中的一方面，所以答案为A。