首页
登录
职称英语
There was one thought that air pollution affected only the area immediately
There was one thought that air pollution affected only the area immediately
游客
2024-01-16
28
管理
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 exports 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. [br] 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://tihaiku.com/zcyy/3366964.html
相关试题推荐
Heaskedfor______classesathomebecausehethoughthewouldlearnFrenchmore
Firstaidcansaveaperson’slifeif______immediatelyandproperly.A、perform
______inthought,hedidn’ttakenoticeofmewhenIwaspassingby.A、LoseB、Lo
A(Lostinthought),sheB(didn’thear)thethunderC(tobegin)inthemountains
Doesthewayyouthoughtof_____thewatercleanmakeanysense?A、makingB、tomak
Thesofthandwriting______athoughtfulsoulandclevermind.A、remindedB、reflec
Inthisthing,hehasno______ofrightandwrong.A、thoughtB、ideaC、conceptD、no
Hecouldn’t______thethoughtofleavinghishometownforever.A、bearB、carryC、of
Theotherday,mybrotherdrovehiscardownthestreetat______Ithoughtwasa
Asapoliceman,Mr.Brownthoughtthathehadadutyto______thelostchildreni
随机试题
Johnregrettedverymuch____________(对老板说了不该说的话).havingsaid/thathehadsaidwh
下列对锐化滤镜和USM锐化滤镜的说法中,错误的是()A.与模糊滤镜相反,加强了相
泡沫混凝土的干密度、抗压强度、吸水率试件应采用符合《混凝土试模》JG237规定的
消防图例中,该图标表示的是( )。A.系统模块 B.控制模块 C.消防电
下列()状况的出现,表示基差走弱。 Ⅰ.7月时大商所豆粕9月合约基差为
白附子的功效是A.润肺下气,止咳化痰B.降气化痰,止咳平喘C.温肺化痰,利气散结
共用题干 TheColdPlacesTheArcticisapol
分析用控制图的主要任务是()。 A.分析过程是否处于统计控制状态B.分析产品
下列有关进一步审计程序的提法说法中,恰当的有( )。A.注册会计师设计和实施的
下列企业资产中,属于资产负债表中非流动资产的是( )。A.交易性金融资产 B
最新回复
(
0
)