如何解决噪⾳污染英语作⽂
因为房⼦周遭的噪⾳污染，想要静下⼼来写⼀篇英语作⽂都不容易。下⾯是店铺给⼤家整理的如何解决噪⾳污染英语作⽂，供⼤家参阅!
现代教育 如何解决噪⾳污染英语作⽂1
工作能力怎么写 Noi 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. Noi is transient; once the pollution stops, the environment is free of it. This is not the ca for chemicals, wage, and other pollutants introduced into the air, soil, or water.
The definition of noi itlf is highly subjective. To some people the roar of an engine is satisfying or thrilling; to others it is an annoyance. Loud music may be enjoyable or a torment, depending on the listener and the circumstances. Broadly speaking, any form of unwelcome sound is noi pollution, whether it is the roar of a jet plane overhead or the sound of a barking dog a block away.
The actual loudness of a sound is only one component of the effect it has on human beings. Other factors that have to be considered are the time and place, the duration, the source of the sound, and whether the listener has any control over it. Most people would not be bothered by the sound of a 21-g
un salute on a special occasion. On the other hand, the thump-thump of a neighbour's music at , even if barely audible, could be a major source of stress.
如何解决噪⾳污染英语作⽂2
The decibel (dB) (分贝) is a measure of sound intensity; that is, the magnitude of the fluctuations in air pressure caud by sound waves. In fact, an increa of just 3 dB means twice as much sound, and an increa of 10 dB means ten times as much sound.
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歌词英语A sound pressure level of 0 d
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B reprents the threshold of hearing in the most nsitive frequency range of a young, healthy ear, while the thresholds of tickling or painful nsations in the ear occur at about 120 to 130 dB. There is fairly consistent evidence that prolonged exposure to noi levels at or above 80 dB can cau deafness. The amount of deafness depends upon the degree of exposure.
女性尿路感染的症状 Noi can cau annoyance and frustration as a result of interference, interruption and distraction. Exposure to noi is also associated with a range of possible physical effects including: colds, changes in blood pressure, other cardiovascular changes, incread general medical practice attendance, problems with the digestive system and general fatigue.
如何解决噪⾳污染英语作⽂3
拓展口号 Our modern city is too crowded,and to solve the problem,three proposals are put forward.Most people believe that we should fist practi the policy “Late Marriage” and “One Couple,One Child” in order to reduce the birth rate.Secondly,the city government must have a tight control over rural people entering cities to engage themlves in trade or do various physical jobs so as to lesn the pressure on the city caud by the incread population.Finally more and more people suggest that living blocks with shopping centers,schools,hospitals as well as cinemas and theatres round them or even satellite towns should be built in city suburbs or the countryside round the cities.In this way city citizens will be encouraged to move there to live and work.If the three proposals are well carried out,the city population will be greatly reduced.
如何解决噪⾳污染英语作⽂4
Noi pollution
we know the sounds of cities are loud enough to cau 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 wor and wor all the time since the noi increas with the population.
with the development of machines, noi has also incread greatly in the 20th century. we live surrounded by loud planes, trucks and electric tools. tv ts and radios add up to 90 or j00 decibels, a certain unit ud 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!
如何解决噪⾳污染英语作⽂5头发颜色
Noi Pollution 噪⾳污染
Noi is among the most pervasive pollutants today. Noi from road traffic, jet planes, jet skis, garbage trucks, construction equipment, manufacturing process, lawn mowers, leaf blowers, and boom boxes, to name a few, are among the audible litter that are routinely broadcast into the air.
Noi negatively affects human health and well-being. Problems related to noi 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 noi in a number of ways. On some occasions, we can be both the cau and the victim of noi, such as when we are operating noisy appliances or equipment. There are also instances when we experience noi generated by others just as people experience cond-hand smoke. While in both instances, nois are equally damaging, cond-hand noi is more troubling becau it has negative impacts on us but is put into the environment by others, without our connt.
