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
2025-03-06
29
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 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. [br] As to the greenhouse effect, the author( ).
选项
A、shares the same view with the scientists
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
推理判断题。根据文章第一段最后两句,作者引用了一些科学家的观点,空气中二氧化碳的增多会导致温室效应。然后作者提出一种假设,如果这是真的的话,那么南极的冰雪就会融化,将纽约等城市淹没。然而对这种观点的正确性从文章很难看出。另外文中第二段第三句提到“今天我们还不能确定这两种情况能否发生…”,所以作者的态度应是“uncertain”。
转载请注明原文地址:https://tihaiku.com/zcyy/3985738.html
相关试题推荐
Whetherwayswillbefoundtopreventpollutionornotisjust______worriesthe
Whenit______airpollution,Wuhanfacesthethree"C"s,cars,coalandconstructi
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Advertisementcanbethoughtof"asthemeansofmakingknowninordertob
Advertisementcanbethoughtof"asthemeansofmakingknowninordertob
Youwillbelate()youleaveimmediately.A、unlessB、untilC、ifD、orA本题考查连词辨析。可转
Airpollution,togetherwithoverpopulation,________manyproblemsinbigcities
Iimmediately________Luke’sfatherfromthecrowdbecausetheytwolookedlikee
随机试题
TheInternetisanexcellentsourceforfindingmanytypesofinformationan
Bydegreestheshutterswereopened:thewindow-blindsweredrawnup,andpe
[originaltext]W:Hey.Uh,youlookreallyunhappy.What’sgoingon?M:Ah,you
网络管理系统运行过程中,当被管设备发生断电事件时,代理进程必须要向管理进程发送事
《物权法》规定了地役权制度。下列有关地役权的表述中正确的有( )。A.地役权是自
某连锁餐馆共有9家店面,平均每家店面每年客流量为5万人次。由子疫情影响,今年客流
大黄横切面的主要鉴别特征是A.车轮纹 B.星点 C.罗盘纹 D.金井玉栏
在我国,投资估算是指在()阶段对项目投资所作的预估算。A、施工图设计 B、施
经产妇,28岁。妊娠37周,阴道无痛性多量流血5小时入院。查:血压80/60mm
下列关于存货清查核算的说法中,正确的有()。A:盘盈的存货应冲减当期的管理费用
最新回复
(
0
)