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
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automob
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automob
admin
2015-11-16
33
问题
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic. At present, we realize that although these are the areas with the worst air pollution, the problem is literally worldwide. On several occasions over the past decade, a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas away from any major concentration of manufacturing and automobile traffic. In fact, the very climate of the entire earth may be infected by air pollution. Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels(coal and oil)is creating a "greenhouse effect"—conserving heat reflected from the earth and raising the world’ s average temperature. If this view is correct and the world’ s temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York, Boston , Miami, and New Orleans will be in water.
Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’ s temperature—a result that would be equally disastrous. A drop of just a few degrees could create something close to a new ice age, and would make agriculture difficult or impossible in many of our top fanning areas. Today we do not know for sure that either of these conditions will happen(though one recent government report drafted by experts in the field concluded that the greenhouse effect is very possible). Perhaps, if we are lucky enough, the two tendencies will offset each other and the world’ s temperature will stay about the same as it is now.
This passage is primarily about______.
选项
A、the greenhouse effect
B、the burning of fossil fuels
C、the potential effect of air pollution
D、the likelihood of a new ice age
答案
C
解析
归纳概括题。文章第一段提到地球的气温可能受到空气污染的影响,接下来谈到两种因空气污染可能造成的后果,所以应选C“空气污染可能带来的影响”。其他三个选项都只是文章主题的一个方面。
转载请注明原文地址:https://kaotiyun.com/show/RXRO777K
0
成人本科学位英语
相关试题推荐
Shortandshy,BenSaunderswasthelastkidinhisclasspickedforanysportsteam."Football,tennis,ricket—anythingwitha
SusanSontag(1933—2004)wasoneofthemostnoticeablefiguresintheworldofliterature.Formorethan40yearsshemadeitm
"We’lldowhatwecantogetthegoods______ontime,"saidthemanagerofthecompany.
Notallmemoriesaresweet.Somepeoplespendalltheirlivestryingtoforgetbadexperiences.Violenceandtrafficaccidentsc
Inthelast500years,nothingaboutpeople—theirclothes,ideas,orlanguages—haschangedasmuchaswhattheyeat.Theorigina
(78)Longafterthe1998WorldCupwaswon,disappointedfanswerestillcursingthedisputedrefereeing(裁判)decisionsthatdenie
Onesummerdaymyfathersentmetobuywireforourfarm.At16,Iliked【76】betterthandrivingourtruck,【77】thistimeIwasn
Japanisasmallcountrywithfewnaturalresources.【C1】______this,Japaneseproductivity,therateatwhichgoodsareproduced,
Runningslowlyfor(some)threemileseveryday(isproved)agood(form)of(exercise).
IsHalloweencelebratedwhereyoulive?IntheUnitedStatesandCanada,Halloweeniswidelyknownandcelebratedeveryyearon
随机试题
试述运输的功能与原理。
合成类固醇激素的前体物质是
重组体的筛选方法,不包括
A.生姜B.干姜C.白芷D.高良姜E.辛夷与附子都具有回阳功效的是()。
某女,36岁。双侧乳房出现肿块,月经前增大,乳房胀痛,肿块随喜怒消长,伴有胸闷胁胀,善郁易怒,失眠多梦,心烦口苦。舌苔薄黄,脉弦滑。中医诊断是()。
往来款项不包括()
已知:MT公司2014年年初所有者权益总额为1500万元,该年的资本保值增值率为125%。2016年年初负债总额为4000万元,所有者权益是负债的1.5倍,该年的资本积累率为150%,年末资产负债率为25%,负债的年均利率为10%,全年固定成本总额为975
某洗车店洗车分外部清洁和内部清洁,两道工序时间均不少于30分钟,而且同一辆车两道工序不能同时进行,洗车间同一时间只能容下2辆车。现有9辆车需要清洗,汽车进出洗车间的时间可忽略不计,则洗完9辆车至少需要的时间为()。
根据以下资料,回答下列问题。2017年全国举办马拉松赛事达1102场,其中,中国田径协会举办的A类赛事223场,B类赛事33场。2017年马拉松赛事的参与人次达到了498万人次,2016年、2015年马拉松赛事的参与人
若有以下程序#includemain(){chara[20],b[]="Theskyisblue.";inti;for(i=0;i<10;i++)scanf("%c",&a[i]);a[i]=’\0’;gets(b);printf("%s%s
最新回复
(
0
)