书通作文网 -中小学原创作文中心。
视频 答案 作文 学习方法 范文 语文 数学 英语 高考 一对一
书通网logo
作文
当前位置: 书通网 > 作文 > 话题作文 > 噪音污染英语作文

噪音污染英语作文

投稿时间:2017-08-11 15:13:33 作者:赵旸 分类:话题作文 来源:书通网 我要投稿


we know the sounds of cities are loud enough to cause great harm to people's hearing in the u.s. one person out of twenty has got some hearing loss. and all over the world the situation is getting worse and worse all the time since the noise increases with the population.

with the development of machines, noise has also increased greatly in the 20th century. we live surrounded by loud planes, trucks and electric tools. tv sets and radios add up to 90 or j00 decibels, a certain unit used to measure the loudness of sound. a normal dialogue reaches 55 decibels; a plane goes to 100, and an ordinary train, reaching the station, can be twice as loud as the loudest plane. disco music reaches about 118. at 120 decibels the ear stops hearing sound, and pain starts. how terrible if things go on like this!

书通网专稿，未经允许禁止转载

我要投稿

推荐阅读

点击查看更多内容
声明 :本网站尊重并保护知识产权，根据《信息网络传播权保护条例》，如果我们转载的作品侵犯了您的权利,请在一个月内通知我们(邮箱：980080969@qq.com)，我们会及时删除。

书通网www.kj-cy.cn为广大网友提供： 优美的诗句、伤感的句子、好词好句、唯美的句子、思念的诗句、经典语句等学习生活资源。