问题补充：
Life gets noisier every day and very few people can be free from noise of some sort or another. It doesn’t matter where you live—in the middle of a modern city, or a faraway village—the chances that you will be disturbed by jet aero planes, transistor radios, oil-powered engines, etc. are almost everywhere.We seem to be getting used to noise, too. Some people feel quite lonely without background music while they are working.
Scientific tests have shown that total silence can be very frightening experience for human beings. However, some people enjoy listening to pop music which is very loud, and this can do harm to their eardrums(耳鼓).The noise level in some disco is far above the usual safety level for heavy industrial areas.
One recent report about noise and concentration(专心) suggested that although a lot of people say that any noise disturbs their concentration, what really affects their ability to concentrate is a change in the level of noise. It goes on to say that a background noise, which doesn’t change too much (music, for example) may even help people to concentrate.
【小题1】The best title for this passage is .A．Noisy LifeB．Background NoiseC．Disturbed ConcentrationD．Changeable Noise【小题2】From this passage, the pollution of noise .A．doesn’t matter muchB．has become worse everywhereC．has become better in big citiesD．has become better in villages【小题3】 “Background music” in the passage means .A．music played in the concertB．a kind of noise coming into your earsC．music helps people to concentrateD．music played while people are working【小题4】 Some people may have their hearing hurt .A．while they are in completely silenceB．while they are dancing violentlyC．while they are listening to pop musicD．while they are listening to soft music【小题5】 Scientists have discovered that what prevents people from concentrating is .A．any kind of noiseB．great changes in level of noiseC．background noiseD．various background musicA
答案：
(答案→)A
解析：
【小题1】根据短文第一句Life gets noisier every day and very few people can be free from noise of some sort or another.及下文描述，可知本文主要讲的就是吵闹的生活，故选A。
【小题1】根据第一段and very few people can be free from noise of some sort or another.及下文It doesn’t matter where you live……etc. are almost everywhere.描述，可知噪音污染无处不在，故选B。
【小题1】联系下文描述，可知选D。
【小题1】根据some people enjoy listening to pop music which is very loud, and this can do harm to their eardrums(耳鼓).描述，可知选C。
【小题1】根据最后一段One recent report about noise and concentration(专心) suggested that although a lot of people say that any noise disturbs their concentration, what really affects their ability to concentrate is a change in the level of noise. 描述，可知选B。
