题目内容：

In today’s world, almost everyone knows that air pollution is harmful to people’s health. ______not all people know that noise is also a kind of pollution and is harmful to humans’ health.

People who work and live in ____ conditions may go deaf. For example, many of the workers who ____ newspapers and books go deaf. Quite a few people living near ____ also have hearing loss. Recently it was reported that many ______ in America can hear no better than 65-year-old people do, because these young people always listen to ____ pop music. Making a loud noise in _____ is also a kind of pollution. It not only disturbs（打扰） ____ but also does great harm to people’s hearing. Cars and ____ also produce too much noise. Such pollution makes people feel uncomfortable and unpleasant, and it can even cause them to become ____ or deaf.

Nowadays many countries are trying to solve all sorts of environmental problems, including noise pollution.

1.A. And    B. But    C. Or    D. So

2.A. good    B. quiet    C. noisy    D. difficult

3.A. read    B. print    C. works for    D. sell

4.A. schools    B. libraries    C. airports    D. hospitals

5.A. babies    B. patients    C. engineers    D. teenagers

6.A. loud    B. soft    C. nice    D. some

7.A. bed    B. time    C. class    D. public

8.A. others    B. you    C. children    D. the old

9.A. bicycles    B. machines    C. planets（星球）    D. supermarkets

10.A. brave    B. happy    C. outgoing    D. sick