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
2014-01-27
66
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 profit, 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?
It can be concluded that______.
选项
A、raising the world’ s temperature only a few degrees would not do much harm to life on earth
B、lowering the world’ s temperature merely a few degrees would lead many major farming areas to disaster
C、almost no temperature variations have occurred over the past decade
D、the world’ s temperature will remain constant in the years to come
答案
B
解析
根据第二段第二句话“A drop of just a few degrees…”可推知。
转载请注明原文地址:https://kaotiyun.com/show/2gjd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Theviewoveravalleyofatingvillagewiththatchedroofcottagesaroundachurch;adrivethroughanarrowvillagestreetli
Theviewoveravalleyofatingvillagewiththatchedroofcottagesaroundachurch;adrivethroughanarrowvillagestreetli
Theviewoveravalleyofatingvillagewiththatchedroofcottagesaroundachurch;adrivethroughanarrowvillagestreetli
TextAfterlunch,withoutpermissionfromtheirparents,thetwoboyssetofftoexplorethepartofthebeachwhich【C1】_____
TextAfterlunch,withoutpermissionfromtheirparents,thetwoboyssetofftoexplorethepartofthebeachwhich【C1】_____
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Punctuationmakesthewrittenlanguageintelligible.Itdoesthejob,onthepage,ofthechangesofpitch,paceandrhythmwhic
Rhythmandblues,orR&B,isa【C1】______ofmusicthatcameoutofthejazz,bluesandgospelmusicthatwasbeing【C2】______byAf
随机试题
空串是_________,其长度等于_______;空格串是________,其长度是______。
下牙槽神经阻滞麻醉成功后的标志是
患者,男性,54岁。两次灌肠后排便4次,应记录为
关于国际工程投标报价中分项工程单价分析的说法,正确的有()。
郭某开车撞了袁某后逃逸,袁某受伤后的医疗费用共约5万元,袁某投保了意外险,保险公司经过审核后,赔偿袁某4万元保险金,则( )。Ⅰ.保险公司可以对郭某行使代位追偿权Ⅱ.郭某对袁某不再负有赔偿义务Ⅲ.保险公司对郭某拥有4万元的追偿权Ⅳ.袁某仍可向郭某
关于债券的利率风险,以下说法错误的是()。(2011年)
下列古诗与节日对应不正确的是()。
(2010上项管)某企业针对实施失败的系统集成项目进行分析,计划优先解决几个引起缺陷最多的问题。该企业最可能使用______方法进行分析。
About10yearsagoImetanadvertisingexecutiveinNewYorkwhoexplainedthedifficultyofadvertisinganewbrandofdeodora
There’sagreatstoryaboutanoldFinnishwomanwho,withoutquiterealizingit,wasusinghercell-phonetoaccesstheInterne
最新回复
(
0
)