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
2025-03-03
14
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 pointed out at the beginning of the passage, people used to think that air pollution ______.
选项
A、caused widespread damage in the countryside
B、affected the entire eastern half of the United States
C、had damaging effect on health
D、existed merely in urban and industries areas
答案
D
解析
细节题。根据文中第一段第一句“There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic.”可知,以前人们都认为空气污染只会影响那些有众多工厂和严重交通堵塞现象的大城市及其周边地区,A、B、C三项都是后来人们才意识到的。故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3981405.html
相关试题推荐
Manyplayerswhohadbeenhighlythoughtofhave_________fromthetennisscene
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
ForJohnthiswasthebeginningofanewlife,________hethoughthewouldnever
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Sincethematterwasextremely______,wedealtwithitimmediately.A、toughB、ten
Wehavealwaysthoughtvery______ofhim.A、highlyB、wellC、greatlyD、enoughA本题考查
Whenit______airpollution,Wuhanfacesthethree"C"s,cars,coalandconstructi
Whofirstthoughtofusingbullockstoprovideenergy?[br]Whichofthefollowi
Whofirstthoughtofusingbullockstoprovideenergy?[br]Inthesentence"Thi
随机试题
[originaltext]Interviewer:Wouldyoupleasedescribeyourfeelingstowardscrim
Thenumberofdevicesyoucantalktoismultiplying—firstitwasyourphone,
会员制和公司制期货交易所的主要区别有()。A、是否以盈利为目的B、提供设施、场所不同C、适用法律不尽相同D、决策机构不同A,C,D会员制和公司
[originaltext]Interviewer(M)PepperSchwartz(W)Now,listentoPartOneofthei
下列关于卫生服务记录表单说法正确的是()A.记录卫生服务操作过程与结果信息
10.断路器非全相保护应由保护装置实现。
企业发放股票股利后产生的影响有()。A:每股利润下降 B:普通股股数不变 C
工程项目交易不同于一般商品的交易,业主期望的不明确性、工程设计的局限性、工程技术
对于机械设备安装时垫铁的放置,说法正确的是( )。A.斜垫铁用于承受主要负荷和
某工人在施工作业过程中脚部被落物砸伤,休养了21周。根据《企业职工伤亡事故分类》
最新回复
(
0
)