在国庆节里到处人山人海、人满为患,可我就是觉得有什么不对劲,原来是有很多噪音, 音乐给人的美感是无穷的，但是噪音的危害也是无发想象的,它会影响人们正常的学习和工作，对人们的身心健康也起了负面作用。
通过互联网上的查找发现噪音对人有很大的危害,噪音是一类引起烦躁、危害人体的声音。强的噪声可以引起耳部的不适，如耳鸣、耳痛、听力损伤。据测定，超过 115分贝的噪声还会造成耳聋。医学专家研究认为，家庭噪音是造成儿童聋哑的病因之一。 噪声超过85分贝，会使人感到心烦意乱，无法专心地工作，结果会导致工作效率降低。高噪声的工作环境，可使人出现头晕、头痛、失眠、多梦、全身乏记忆力减退以及恐惧、易怒、自卑甚至精神错乱，从而影响到工作和学习。
噪音污染主要来源于很多东西。比如说商场里吧！商场里人山人海，很多人大声说话，服务员在高兴的聊天，小朋友跟着爸爸、妈妈一起聊着天，一边挑选着精美的礼物，广播里播放出高昂的音乐声，这样商场里就出现了很大的噪音。再如隔壁在装修的时候，每天制造出很多刺耳的声音，让我们受影响，这些给我们带来的危害是很大的。还有汽车、建筑工地、歌舞厅、飞机、工厂等都是制造噪音的主要地方。
Noise Pollution 噪音污染
Noise is among the most pervasive pollutants today. Noise from road traffic, jet planes, jet skis, garbage trucks, construction equipment, manufacturing processes, lawn mowers, leaf blowers, and boom boxes, to name a few, are among the audible litter that are routinely broadcast into the air.
Noise negatively affects human health and well-being. Problems related to noise include hearing loss, stress, high blood pressure, sleep loss, distraction and lost productivity, and a general reduction in the quality of life and opportunities for tranquillity.
We experience noise in a number of ways. On some occasions, we can be both the cause and the victim of noise, such as when we are operating noisy appliances or equipment. There are also instances when we experience noise generated by others just as people experience second-hand **oke. While in both instances, noises are equally damaging, second-hand noise is more troubling because it has negative impacts on us but is put into the environment by others, without our consent.
Noise pollution is not easily defined. Part of the difficulty lies in the fact that in some ways it is different from other forms of pollution. Noise is transient; once the pollution stops, the environment is free of it. This is not the case for chemicals, sewage, and other pollutants introduced into the air, soil, or water.
影响正常工作和生活的声音统称噪声，不一定分贝高了就是噪声，分贝低了就一定不是噪声。比如你在电*里看**，音响声音分贝值很高，经常超过90分贝，但对于看**的人来说不能称之是噪声。但是，电*如果隔音效果不好，声音传到旁边的住宅楼里，经过衰减，也许只有50分贝，但对于住宅里的人来说就是噪声，因为这个声音引起人的不适。
下面的是人的听觉承受能力参考值：44分贝－属于可以接受的程度；55分贝－感觉到有点烦；60分贝－没有睡意；70分贝－令人精神紧张；85分贝－让人无法接受而捂住耳朵；100分贝－可让你的耳朵暂时失去听觉；120分贝－可以瞬间刺穿你的耳膜；160分贝－碎玻璃；200分贝－导致死亡。分贝值在60以下为无害区，60－110为过渡区，110以上是有害区。由此可见噪音对人体是有多大的危害呀！
而噪音污染主要来源于：汽车鸣笛、工业噪音、建筑施工、音乐厅、高音喇叭、大声说话等，大多数都是人为的。所以，只要人人都文明一点，有些噪音是可以减少的，比如：汽车鸣笛声、大声说话、工业噪音……
正所谓“上有‘噪音’，下有‘消音’。”聪明的人们也想出了许多应对的方法，比如：发明了隔音玻璃、在室内多养花草，实在不行也可以在耳朵上“装”一个“保护层”——耳塞……对付噪音的方法非常之多。
当然，的方法就是“去根”，这样才能永久、有效的排除噪音。
五年级:孙菁菁
We know the sounds of cities are loud enough to cause great harm to people's hearing in the U.S. Oneperson 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 livesurrounded 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!