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
33
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.
When you walk in a busy street, you should walk on the side ______.
选项
A、where the wind is coming
B、where the wind is going
C、where the wind is weaker
D、where the wind is stronger
答案
A
解析
第二段第五句:在街上走的时候要走在迎风的一边,因为迎风一边的空气中污染物要比顺风的一边少一半。
转载请注明原文地址:https://jikaoti.com/ti/sZOjFFFM
0
在职申硕(同等学力)英语
相关试题推荐
女性,70岁,右下唇皮肤肿物不断增大半年,直径约1.5cm大小,近半个月来破溃出血。病理检查肿瘤细胞异型性明显,角化珠形成,已浸润至肌肉组织。符合该患者诊断的是
Revengeisoneofthosethingsthateveryoneenjoys.Peopledon’tliketotalkaboutit,though.Justthesame,thereisnothing
Thegeneraltopicofthepassageis______.Accordingtothepassage,Americanstendtoignoretherestoftheworldbecause____
Inthefirstparagraph,theauthorsuggeststhataqualityeducationcan______Accordingtothepassage,whichofthefollowin
Whenamanknowsthathewillbeputintoprisonifheusesapotentiallydeadlyobjecttorobordoharmtoanotherperson,he
Thosegovernmentswillprovidebigfoodandfuel______accordingtotheAsianDevelopmentBank.
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
A:Doesthisbusgotothetrainstation?B:______
Onereactiontoalltheconcernabouttropicaldeforestationisablankstarethatasksthequestion,"SinceIdon’tliveint
disapprovalthatnorA.influencechoicesbyvoicing(56)______ofsomeoneB.interclassmarriagesareneitherrare(57)______sho
随机试题
A、过敏性休克B、湿疹C、慢性肾上腺皮质功能不全D、肾病综合征E、重症心功能不全糖皮质激素隔日疗法用于
卫生监督统计报告范围包括两部分
患者31岁,葡萄胎刮宫术后3个月,阴道流血20余天,术后一直无月经来潮。2天前突然下腹剧痛,出冷汗,昏倒。检查:贫血貌,血压80/50mmHg,心率108次/分,体温36.8℃,腹部移动性浊音阳性,阴道左侧壁有1.5cm紫蓝结节,子宫大小不清,双侧附件有6
A.心悸,头晕,多梦,面白B.心悸,气短,神疲,自汗,活动后加剧C.心烦失眠,面赤,口舌赤烂D.心悸怔忡,气短胸闷,畏冷肢凉,舌淡胖,脉微细E.以上都不是
关于梅毒硬下疳的描述,错误的是()
下列关于德国法律制度形成与发展的哪一表述是错误的?()
1860年洗劫和烧毁圆明园的是
Startingthismonth,roughlyonequarteroftheworld’spopulationwilllosesleepandgainsunlightastheysettheirclockson
Forsomeeducators,thereisnothingwrongwithfunandgames.AgroupcalledtheEducationArcaderecentlyhelda(36)______in
A、Itisthefirsttimetheyhavebeenonatrip.B、Theycannotdowhattheylikebefore.C、Theydon’thavetocarethetime.D、T
最新回复
(
0
)