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
考研
A report published recently brings bad news about air pollution. It suggests that it could be as damaging to our health as expos
A report published recently brings bad news about air pollution. It suggests that it could be as damaging to our health as expos
admin
2012-02-27
67
问题
A report published recently brings bad news about air pollution. It suggests that it could be as damaging to our health as exposure to the radiation from the 1986 Ukraine nuclear power disaster. The report was published by the UK Royal Commission on Environmental Pollution. But what can city people do to reduce exposure to air pollution? Quite a lot, it turns out.
Avoid walking in busy streets. Choose side streets and parks instead. Pollution levels can fall a considerable amount just by moving a few meters away from the main pollution source—exhaust fumes (烟气). Also don’t walk behind smokers. Walk on the windward side of the street where exposure to pollutants can be 50 percent less than on the downwind side.
Sitting on the driver’s side of a bus can increase your exposure by 10 percent, compared with sitting on the side nearest the pavement. Sitting upstairs on a double-decker can reduce exposure. It is difficult to say whether traveling on an underground train is better or worse than taking the bus. Air pollution on underground trains tends to be less toxic than that at street level, because underground pollution is mostly made up of tiny iron particles thrown up by wheels hitting the rails. But diesel and petrol fumes have a mixture of pollutants.
When you are crossing a road, stand well back from the curb while you wait for the light to change. Every meter really does count when you are close to traffic. As the traffic begins to move, fumes can be reduced in just a few seconds. So holding your breath for just a moment can make a difference, even though it might sound silly.
There are large sudden pollution increases during rush hours. Pollution levels fall during nighttime. The time of year also makes a big difference. Pollution levels tend to be at their lowest during spring and autumn when winds are freshest. Extreme cold or hot weather has a trapping effect and tends to cause a build-up of pollutants.
While waiting to cross a busy street, you should ______.
选项
A、wait a few seconds until the fumes reduce
B、stay away from the traffic as far as possible
C、hold your breath until you get to the other side of the street
D、count down for the light to change
答案
B
解析
第四段第一、二句:等信号灯过马路的时候要尽量站得离马路边上的镶边石远一些。因为离车辆近的时候,每近一米都会加重污染。
转载请注明原文地址:https://kaotiyun.com/show/4shi777K
0
在职申硕(同等学力)英语
相关试题推荐
TheNetherlandsplanstostartbuildingfloatingcommunitiesonwaterbecause______Byciting"Everyoneaskswhydidn’twedo
Shouldeitherofthesesituationsoccur,wrongcontrolactionsmightbetakenandapotentialaccidentsequenceinitiated.
A:Youseemtohavealotofworktodoinyouroffice.You’vealwaysbeenworkingovertime.B:______
He(wascaught)(cheating)intheexamination.Ifhehadhad(atail),he(wouldput)itbetweenhislegs.
Asregardshisparents’shoppingforthegrandchildren,theauthor______"Personalitytransformation"intheauthor’sparents
Althoughinteriordesignhasexistedsincethebeginningofarchitecture,itsdevelopmentintoaspecializedfieldisreallyqui
Ihaveaninfatuation(迷恋)withautumn.Thecolorsoftheseason,andthesmells,havealwaysthrilledme.Ihavealwaysfoundjoy
Meanwhile,Ialwayskeptintouchwithmyformerprofessoratcollege,byletterandtelephone.
IsthereenoughoilbeneaththeArcticNationalWildlifeRefuge(ANWR)tohelpsecureAmerica’senergyfuture?PresidentBushcer
A:I’dliketospeaktothemanager,please.B:______
随机试题
戊戌维新时期,维新派在上海创办的影响较大的报刊是()
扬弃就是
胸骨右缘第2肋间为哪个瓣膜听诊区
可出现补体下降的病变有()
福寿村位于甲区的近郊,经济比较发达,村办企业已经有几十家,现在有下列用地需求,其中可以使用集体土地的有:()
( )是在路基顶面的行车部分用不同粒料或混合料铺筑而成的层状结构物。
审批过程中,如果借款人需要解除质权,那么之前的审办人员可以协助其执行操作。()
下列主体中可以适用《破产法》规定的有()。
“民以食为天,食以安为先”,食品安全与身体健康密切相关,下列做法不会危害人体健康的是()。
BSP定义数据类的方法有两种,分别是实体法和【】。
最新回复
(
0
)