ife 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 are that you'll be disturbed by jet airplanes, transistor radios, oil-powered engines, etc. We seem to be getting used to noise, too.
Some people feel quite lonely without background music while they're working. Scientific tests have shown that total silence can be a very frightening experience for a human being. However, some people enjoy listening to pop music which is very loud, and this can do harm to their eardrums.
The noise level in some discos is far above the usual safety level for heavy industrial areas.
One recent report about noise and concentration suggested that although lots of people say that noise disturbs their concentration, what really influences their ability to concerttrate 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.
生活日益嘈杂，几乎没有人能够摆脱各种各样的噪音。不论你住在哪里——发达城市的中心，还是遥远的小村庄——都会受到喷气飞机、晶体管收音机和汽油发动机的
干扰。而我们也似乎越来越对这些噪音感到无所谓了。
有人感觉工作时没有背景音乐会非常孤单。科学试验显示，完全安静的环境对人类来说是非常可怕的。但是，有些人喜欢听声音很大的流行音乐，这对人的耳膜伤害很大。一些迪斯科舞厅的噪音强度甚至远远超过重工业地区的一般安全标准。
最近，一项有关噪音与注意力的报告显示，虽然很多人抱怨噪音使他们集中无法集中精力，而事实上真正影响他们集中注意力的是噪音强度的变化。报告还显示，起伏变化不大的背景音(例如，音乐)甚至可以帮助人们集中注意力。
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