阅读理解。
In today's world, almost everyone knows that air pollution and water
pollution are harmful to people .However, not all the persons know that
noise is also a kind of pollution, and that is harmful to human beings, too.
People who work and live under noisy conditions usually become deaf.
scientists believe that 10 percent of workers in Britain are being deafened
by the noise where they work .Many of the workers who print newspapers
and books, and who weave cloth become deaf. Quite a few people living
near airports also become deaf. Recently it was discovered that many
teenagers in America could hear no better than 65-year-old people, for these
young people like to listen to "pop" music and most of "pop" music is a kind
of noise .
Nowadays the government in many countries have made laws to reduce or
control noise and make it less than 85 decibels. In China, the people's
government is trying to solve not only air and water pollution problems but
also noise pollution problem.
1. The passage mainly tells us something about .
A. air pollution
B. water pollution
C. noise pollution
D. soil pollution
2. Today scientists believe that .
A. 90 percent of all the workers are free from any noise
B. 90 percent of all the workers in Britain are not suffering from noise.
C. 10 percent of all the workers in Britain are working in noisy places.
D. the hearing of 10 percent of all the workers in Britain is being deafened
by the noise where they work.
3. People who become deaf easily.
A. don't print newspapers or books
B. make clothes
C. live far away from airports
D. none of the above
4. Recently many teenagers could hear no better than 65-year-old people in
America, because .
A. they all live near airports.
B. their hearing is harmed by loud music
C. they are younger than the old people
D. their ears are still small
5. From the passage, we can infer that .
A. "pop" music is popular with old people
B. less than 85 decibels can cause deafness
C. a continuous noise of over 85 decibels can cause deafness
D. noise pollution is more serious than water pollution nowadays