首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Noise pollution is not a necessary price to pay for living in an industrial society. Much can be done to reduce the severity of
Noise pollution is not a necessary price to pay for living in an industrial society. Much can be done to reduce the severity of
admin
2012-12-13
22
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.
The first paragraph tries to tell us how to control noise pollution by ______.
选项
A、taking measures to reduce human exposure to noise
B、using or replacing with quieter products
C、appealing to Government to set up laws
D、people’s serf consciousness
答案
B
解析
本题目的是找出文章第一部分的中心,文章第一段讲的是“控制声音污染我们应使用低污染,较安静的产品。”因此选择B。A选项是文章第二段提到的问题,即噪音产生后的措施,而C,D选项文章并未提到。
转载请注明原文地址:https://kaotiyun.com/show/xlw7777K
0
大学英语四级
相关试题推荐
ATheSpanishGovernmentissoworriedaboutthenumberofyoungadultsstilllivingwiththeirparentsthatithasdecidedtoh
Aperson’shomeisasmuchareflectionofhispersonalityastheclotheshewears,thefoodheeatsandthefriendswithwhomh
Aperson’shomeisasmuchareflectionofhispersonalityastheclotheshewears,thefoodheeatsandthefriendswithwhomh
A、Internationalchildren’sprojects.B、Socialandenvironmentalprojects.C、Projectsforpeoplewithnomoney.D、Projectsinvolv
Japanisgoingthroughacomplexnationalidentitycrisis.Thatmaybenobadthing,saysanewbookbyanAmericanresearcher.
A、He’llcomealone.B、He’lljustbringhiswife.C、Hewon’tgototheparty.D、He’lljustgivethetickettosomeoneelse.C男士的话
VegetarianismVegetarianism(素食主义)seemsmorepopularthanever.About8millionAmericansconsiderthemselvesvegetarians,
Chinese-ForeignCooperationinRunningSchools1.现在流行中外大学合作办学2.合作办学的好处和可能存在的问题3.你对此的看法
Itiswellknownthattheretiredworkersinourcountry______(有权利享受免费医疗).
随机试题
简答火雷管外观质量验收的要求。
环境温度增加引起能量代谢加强的原因是()
下列属于非浸润性乳腺癌的是
患者,男,15岁,面型略突,面下1/3高,ANB2°,下颌支发育不足,前牙切牙合。上下牙列轻度拥挤,磨牙轻近中关系,上下前牙略属倾,下牙弓方形,4个第三磨牙牙胚存在
气胸非手术治疗后不易复发。
口腔健康教育者应采取的方式是
行为人代理权终止后以被代理人名义订立的合同,相对人可以催告被代理人在()内予以追认。
企业如果延长信用期间,可能导致的结果有()。
关于统计检验中α和β值的表述正确的是
阅读下列说明和图表,回答问题1到问题3,将解答填入答题纸的对应栏内。【说明】在多道程序系统中,各个程序之间是并发执行的,共享系统资源。CPU需要在各个运行的程序之间来回地切换,这样的话,要想描述这些多道的并发活动过程就变得很困难。为此,操作系统设计者提
最新回复
(
0
)