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标题: 新概念入门第四册 25 PART B [打印本页]

作者: Rebecca949    时间: 2011-12-31 09:48     标题: 新概念入门第四册 25 PART B

[audio]http://sound.yywz123.com/tingbbs/xgnrm/xgnrmdsic/25b.mp3[/audio]




Lesson 25 Non-auditory effects of noise

What is needed in the case of noise is a study of large numbers of people living under noisy conditions, to discover whether they are mentally ill more often than other people are. Some time ago the United States Navy, for instance, examined a very large number of men working on aircraft carriers: the study was known as Project Anehin. It can be unpleasant to live even several miles from an aerodrome; if you think what it must be like to share the deck of a ship with several squadrons of jet aircraft, you will realize that a modern navy is a good place to study noise. (1)_______________________. This result merely confirms earlier American and British studies: if there is any effect of noise upon mental health, it must be so small that present methods of psychiatric diagnosis cannot find it. That does not prove that it does exist: (2)_______________________.


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