首页
登录
职称英语
Noise pollution is not a necessary price to pay for living in an industrial
Noise pollution is not a necessary price to pay for living in an industrial
游客
2024-02-18
21
管理
问题
Noise pollution is not a necessary price to pay for living in an industrial society. Much can be done to reduce the severity of the problem. For example, vehicles and other machines can be built to produce less noise. Four-cycle engines can replace much noisier two-cycle engines in such products as lawnmowers, motorboats, and jet skis. Labels that indicate the noise levels of appliances and tools can help consumers avoid noisy products and choose quieter alternatives.
Even after noise is generated, steps can be taken to reduce human exposure to it. At homes or in offices, insulation of walls and double-glazing of windows can decrease sound from traffic, neighbors, and other sources from the outside world. Sound walls along highways can shield nearby neighborhoods from traffic noise. Individuals should protect themselves with earplugs or ear protectors, particularly when noise levels exceed 85 decibels (分贝).
In the industrialized nations, governments have laws and policies to counter noise pollution. In the United States, at least six federal agencies are involved in controlling noise pollution. Since 1969 the Federal Aviation Administration (FAA) has monitored and controlled noise from airplanes, The agency requires that new aircraft meet specified noise standards and that old ones be retrofitted (翻新) or retired. Local airport authorities, with FAA approval, reduce the impacts of noise pollution by routing flights over water or unpopulated areas on takeoff and landing, and by limiting traffic at night. The FAA also encourages airports and local governments to take steps on the ground, such as constructing sound barriers, insulating buildings, and restricting residential development in noisy areas. In extreme eases, airports have relocated people living under flight paths.
In the last 30 years, the United States and other countries have expended considerable efforts to control noise pollution. Most vehicles and many other noise producers are quieter than they used to be. On the other hand, there are more noise-making machines than ever, operating mare of the time. In the United States, most of the roles governing noise pollution were established at least two decades ago, and critics are calling for new, stronger measures, as well as for better enforcement of the old ones. What is true of most other kinds of pollution is also true of noise: Our best efforts against it tend merely to keep matters from getting dramatically worse. [br] After noise is generated, what can be done to reduce human exposure to noise according to the second paragraph?
选项
A、Replacing noisy products.
B、Moving people out of the noisy place.
C、Setting up laws to keep from getting worse.
D、Using sources to reduce noise.
答案
D
解析
文章第二段告诉我们“噪音产生后可以通过使用绝缘墙,双层玻璃,耳塞等材料达到控制噪音的目的。”其他选项在这里与题干不相符。
转载请注明原文地址:https://tihaiku.com/zcyy/3460093.html
相关试题推荐
[originaltext]Itisoftennecessarytoreleaseafish,thatis,setitfreeaft
[originaltext]Itisoftennecessarytoreleaseafish,thatis,setitfreeaft
[originaltext]Itisoftennecessarytoreleaseafish,thatis,setitfreeaft
[originaltext]Itisoftennecessarytoreleaseafish,thatis,setitfreeaft
IsForeignLanguageLearningNecessary?1.目前各种翻译软件应有尽有2.有人认为没有必要再学外语3.我的看法
Anunsettlingfactaboutlungcanceristhatevencleanlivingcannotguara
Anunsettlingfactaboutlungcanceristhatevencleanlivingcannotguara
Anunsettlingfactaboutlungcanceristhatevencleanlivingcannotguara
Anunsettlingfactaboutlungcanceristhatevencleanlivingcannotguara
Anunsettlingfactaboutlungcanceristhatevencleanlivingcannotguara
随机试题
Bert:Whatkindofhobbiesdoyouhave?Andrew:Well,Ilikebuildingmodeltrai
HowmanysoldiershavebeenstationedinAfghanistan?[originaltext]British
Completethenotesbelow.WriteNOMORETHANTHREEWORDSforeachanswer
Accordingtoonespeaker,wecouldskip______ifweareshortoftime.[br][ori
[originaltext]Thereisnodoubtthatadults,andevenhighlyeducatedadult
我国新民主主义时期财政的特点是()。A.财政支出主要用于经济建设B.财政收入
使用身高组别体重法来评价儿童的体重,以实测体重与同身高组的标准体重均值相比,正确
击实试验结果整理中,取几组数据中干密度最大的为该土样的最大干密度,其对应的含水率
与原发性甲状旁腺功能亢进症的临床表现相关的是A.血钾过高 B.血镁过高 C.
A. B. C. D.
最新回复
(
0
)