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
专升本
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
2011-07-31
35
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 farming 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. Driven by economic profits, people neglect. the damage on our environment caused by the "advanced civilization". Maybe the air pollution is the price the human beings have to pay for their development. But is it really worthwhile?
As to the greenhouse effect, the author ______ .
选项
A、share the same view with the scientist.
B、is uncertain of its occurrence
C、rejects it as being ungrounded
D、thinks that it will destroy the world soon
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/dglC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Allthatwereallyneedtoplotoutthefutureofouruniverseareafewgoodmeasurements.Thisdoesnotmeanthatwecansitd
Oneofthemostauthoritativevoicesspeakingtoustodayis,ofcourse,thevoiceoftheadvertisers.Itshoutsatusfromthe
(Tomyamazement),Bobleftawell-paidjobtotravelaroundtheworld.
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediatelyaroundlargecitieswithfactoriesandheavyautomob
UnitedStatescustomslawdefinesanantique(古董)asanobjectthatismorethan100yearsold.Itisunderstood,however,that
TomandJackhavereturnedbut______studentsofthegrouphaven’tcomebackyet.
Thispassagedealsmostlywith______.Inthesecondparagraph,theterm"ineffect"means______.
______,followthedirectionsonthebottlecarefully.
Theoldcoupledecidedto______aboyandagirlthoughtheyhadthreeoftheirown.
ManyfamiliesintheUnitedStateshavealargerincomenowthaneverbefore,butpeoplearefindingitdifficulttomakeendsm
随机试题
肺癌的病因和发病机制,下列不恰当的为()
以下何种药物可刺激胰岛β细胞释放胰岛素
下列活髓切断的步骤中,正确的是
吴某系脑科的主治医生,经常负责病人的开颅手术。某日凌晨有位病人脑出血需要马上开刀,吴某当晚值夜班,因此是主刀医生。手术过程中,最近休息不好的吴某无法集中精神,犯了许多关键的错误,导致病人死亡。对吴某的行为,下列说法正确的是:()
纳税人、扣缴义务人在规定的期限内不缴或少缴应纳或解缴的税款,税务机关可根据其情节依法采取的措施和处罚主要有()。
下面是某省近三年高考语文试卷中文言文阅读所占比重统计表: 下列结论不能从图表中得出的一项是( )。
设A是三阶矩阵,α1,α2,α3为三个三维线性无关的列向量,且满足Aα1=α2+α3,Aα2=α1+α3,Aα3=α1+α2.(1)求矩阵A的特征值;(2)判断矩阵A可否对角化.
Thespeechismainlyabouttheorganizationofthecompany.
______
OnDecember25,2000,manypeopleacrossNorthAmericareceivedarareChristmastreatwhenthemoonpassedinfrontofthesun
最新回复
(
0
)