People who work and live under noisy conditions usually become deaf. Today, however, 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（纺织）cloth become deaf. Recently it was discovered that many teenagers in America could hear no better than 65-year-old people, for these young like to listen to“pop”music and most of“pop”music is a kind of noise. Besides, noise produced by jet planes or machines will make people's life difficult and unpleasant, or even make people ill or even drive them mad.

　　Nowadays the government in many countries have made laws to reduce or control noise and make it less than 85 decibels（分贝）. In China, the people's government is trying to solve not only air and water pollution problems but also noise pollution problem.

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

A．don't print newspapers or books

B．make clothes

C．live far away from airports

D．none of the above

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

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

　　People ___2___ work and live under noisy conditions usually become deaf. Today, however, ___3___ 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（织）cloth become deaf. Quite a few people ___4___ near airports also become deaf. Recently it was ___5___ that many teenagers in America could hear no ___6___ than 65-year-old people, for these young like to listen to“pop”music and most of“pop”music is a kind of noise.___7___, noise produced by jet planes or machines will make people's life difficult and unpleasant, or even make people iii or even drive them mad.

　　Nowadays the government（政府）in many countries have ___8___ laws（法律）to reduce or control noise and make it less than 85 decibels（分贝）. In China, the people's government is trying to ___9___ not only air and water pollution problems but ___10___ noise pollution problem.