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
102
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
男性,45岁,骑自行车时发生车祸,左股骨粉碎性骨折。在急诊室突然呼吸困难、胸痛。查体:呼吸增快,紫绀,肺部可闻及湿啰音。X线检查:肺不张,胸腔内可见少量积液。肺内的病变最可能是
单纯使用根治性切除手术治疗骨肉瘤,5年存活率不高,其主要原因是
男性,62岁,咳嗽、气喘40年,5年来间断加重。1周来咳喘、痰多伴嗜睡。血气结果显示:呼吸性酸中毒伴代谢性酸中毒。下列治疗方法中哪项不正确
Wantaglimpseofthefutureofhealthcare?Takealookatthewaythevariousnetworksofpeopleinvolvedinpatientcareare
Shouldeitherofthesesituationsoccur,wrongcontrolactionsmightbetakenandapotentialaccidentsequenceinitiated.
In(businessasawhole),thereisacontroversy(asto)whether(arebusinesses)reallyencouragingtheprospectsofgreater(e
Inthefirstparagraph,theauthorsuggeststhataqualityeducationcan______Accordingtothepassage,whichofthefollowin
ManyAmericansharboragrosslydistortedandexaggeratedviewofmostoftheriskssurroundingfood.FergusClydesdale,headof
Likesomeforeigners,Iaskalotofquestions,someofwhichareinsultinglysilly.ButeveryoneI______hasansweredthosequ
Timhasfailedthreecoursesthissemester,sohewillhaveto______themnextsemester.
随机试题
简述中华民族精神的集中体现。
面神经
患者,男性,45岁,主诉刷牙时牙龈出血,口腔有异味,双侧后牙及下前牙轻度松动,伴有咬合痛。主要应该进行的检查是
据《国务院关于加强环境保护重点工作的意见》,对()的重金属污染地区、行业和企业进行集中治理。
在选择价值分析对象时,不能作为重点分析对象的是()。
某小型超市(一般纳税人)2009年5月6日,销售蔬菜2000元,鸡蛋6000元,方便面500元,啤酒6000元,均开具普通发票,则当期确认的主营业务收入应为( )元。
马克思主义与中国实际相结合的第一次历史性飞跃的理论成果是()。
关于民法调整的财产关系,下列说法不正确的是()
China’sentryintotheWTOactuallyrepresentstheresultofathree-sidedwin-winsituation-China,theUnitedStatesandthe
Mostworthwhilecareersrequiresomekindofspecializedtraining.Ideally,therefore,thechoiceofan【B1】______shouldbemade
最新回复
(
0
)