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
【M1】The economic growth that many nations in Asia and increasingly Africa have experienced over the past couple of decades has t
【M1】The economic growth that many nations in Asia and increasingly Africa have experienced over the past couple of decades has t
admin
2014-02-22
30
问题
【M1】
The economic growth that many nations in Asia and increasingly Africa have experienced over the past couple of decades has transformed hundreds of millions of lives — almost entire for the better.
【M2】
But there is byproduct to that growth, one that’s visible — or sometimes less than visible — in the smoggy, smelly skies above cities like Beijing. New Delhi and Jakarta.
【M3】
Because of new cars and power plants, air pollution is bad and getting worse in much of the world, and it is taking a major toll to global health.
【M4】
How big? According to a new analyze published in the Lancet, more than 3.2 million people suffered premature deaths from air pollution in 2010. the largest number on record.
That’s up from 800,000 in 2000. 【M5】
And it’s a regional problem: 65% of those deaths occurred in Asia, wherever the air is choked by diesel soot from cars and trucks, as well as the smog from power plants and the dust from endless urban construction.
In East Asia, 1.2 million people died, as well as another 712,000 in South Asia, including India. 【M6】
For the first time ever, air pollution is on the world’s top-10 list of killers, and it’s moving down the ranks faster than any other factor.
So how can air pollution be so damaging? 【M7】
It is the very finest soot — so small that it lodges deep within the lungs and from there enter the bloodstream — that contributes to most of the public-health toll of air pollution including mortality.
【M8】
Diesel soot, what is also a carcinogen, is a major problem because it is concentrated in cities along transportation corridors impacting densely populated areas.
【M9】
It is thought contribute to half the premature deaths from air pollution in urban centers.
For example, 1 in 6 people in the U.S. live near a diesel-pollution hot spot like a rail yard, port terminal or freeway.
We also know that air pollution may be linked to other nonlethal conditions, including autism. Fortunately in the U.S. and other developed nations, urban air is for the most part cleaner than it was 30 or 40 years ago, thanks to regulations and new technologies like the catalytic converters that reduce automobile emissions. Governments are also pushing to make air cleaner — see the White House’s move last week to further tighten soot standards. 【M10】
It is perfect, but we’ve had much more success dealing with air pollution than climate change.
【M11】
Will developing nations like China and India eventually catch up? Hopefully — though the problem may get worse before long it gets better.
The good news is that it doesn’t take a major technological leap to improve urban air. 【M12】
Switching from diesel fuel to unleaded helps, as do newer and cleaner cars that are more likely to spew pollutants.
Power plants — even ones that burn fossil fuels like coal — can be fitted with pollution-control equipment that, at a price, will greatly reduce smog and other contaminants.
【M13】
But the best solutions may involve urban design. In the Guardian, John Vidal notes that Delhi now has 200 cars per 1,000 people, far more than much rich Asian cities like Hong Kong and Singapore.
【M14】
Developing cities will almost certainly see an increase in car ownership as residents become wealthier — and that does have to mean lethal air pollution.
(Even ultra-green European cities often have rates of car ownership at or above the level Delhi has now.) 【M15】
Higher incomes should also lead to tougher environmental regulations, which is exactly what happened in the West. We can only hope it happens after the death toll from bad air gets even higher.
【M15】
选项
答案
after→before
解析
这句话的意思是,我们只能期待在糟糕的空气导致更高的死亡率之前,能出台更加严格环境监管政策。如果是死亡率变得更高之后再出政策,就没有任何意义了,所以这里将after改为before。
转载请注明原文地址:https://kaotiyun.com/show/dUQO777K
0
考博英语
相关试题推荐
Biotechnologyinoneformoranotherhasflourishedsinceprehistorictimes.Whenthefirsthumanbeingsrealizedthattheycoul
Thirty-twopeoplewatchedKittyGenovesebeingkilledrightbeneaththeirwindows.Shewastheirneighbor.Yetnoneofthe32he
Friendsplayanimportantpartinourlives,andalthoughwemaytake【46】forgranted,weoftendon’tclearlyunderstandhowwem
Friendsplayanimportantpartinourlives,andalthoughwemaytake【46】forgranted,weoftendon’tclearlyunderstandhowwem
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesandtoblamethemformostofthemisunderstandingsbetw
WhenIdecidedtoquitmyfulltimeemploymentitneveroccurredtomethatImightbecomeapartofanewinternationaltrend.
Developingapeaceful,understanding,andsupportiverelationshipbetweenparentsandchildrenisnotaneasytask.Failurescan
InEnglandalongastretchofthenorth-easecoastwhichgentlycurvesfromNorthumberlandtotheestuaryoftheriverTees,the
Inamovetodisseminatefacultyresearchandscholarshipmorebroadly,theFacultyofArtsandSciences(FAS)votedonTuesdayto
(1)TheChinese,fromthehighesttothelowest,haveanimperturbablequietdignity,whichisusuallynotdestroyedevenbyaEu
随机试题
男性,35岁,被汽车擅伤全腹剧烈疼痛,血压90/60mmHg(12/8kPa)脉搏100次/分,呼吸34次/分,收门诊留观期间禁用()
A.插入顺序B.转座子C.转座噬菌体D.溶原性转换E.原生质体融合携带有与插入功能无关的基因,能整合到受体DNA的多个“位点”上的是
神经系统中药中毒反应的表现有()。
下列关于建设工程承包发包违法行为责任的说法,正确的是()。
根据《专利法》的规定,下列专利权主体中,不能成为专利申请人的是()。
传统DVD需要光头发出红色激光来读取或写人数据。波长越短,能够在单位面积上记录或读取的信息就越多。因此,蓝光技术诞生了,它极大地提高了光盘的存储容量,到目前为止,蓝光是最先进的大容量光碟格式,BD激光技术的巨大进步,使你能够在一张单碟上存储25GB的文档文
人生价值内在地包含了人生的自我价值和社会价值两个方面。下列关于人生的自我价值与社会价值的关系说法正确的是()
以下关于相对剩余价值同超额剩余价值的论断中,正确的是()
Windows98支持USB、IEEE1394等总线接口,是由于Windows98支持______驱动程序模型。
Amongtheraftofbooks,articles,jokes,romanticcomedies,self-helpguidesandotherwritingsdiscussingmarriage,somefamil
最新回复
(
0
)