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
2016-06-24
23
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?
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 damaged effect on health
D、existed merely in urban and industries areas
答案
D
解析
由第一段第一句话可推知。
转载请注明原文地址:https://kaotiyun.com/show/tnVd777K
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
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
TheGovernmenthasalmostdoubleditsspendingoncomputereducationinschools.Mr.WilliamShelton,juniorEducationMinister,
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Forthispart,youarerequestedtowriteanessayonthetopicComputerNetworksinthreeparagraphs.Thefirstsentenceofeac
Futuristslovecomputers.Afterall,40yearsagoelectronicdigitalcomputersdidn’texist;todaymicrochipsastinyasababy’s
Lincolnwasastrongexecutivewhosavedthegovernment,savedtheUnitedStates.HewasaPresidentwhounderstoodpeople,and,
Idon’tknowhowIbecameawriter,butIthinkitwasbecauseofacertainforceinmethathadtowriteandthatfinallyburst
Whatwillthemandotonight?
Whatwillthemandotonight?
随机试题
不属于广告商业功能的是()。
整合营销传播的工具有哪些?
属于意外性移动的是
病人的心理社会特征是病人关于疾病的教育与经验是
A、卡托普利B、胺碘酮C、普鲁卡因胺D、普罗帕酮E、盐酸维拉帕米属于延长动作电位时程的抗心律失常药的是()
在推行工业结构优化升级的工作中,提升汽车工业水平属于()的范畴。
材料:本课是让学生学会用Excel对数据进行筛选、排序及分类汇总操作。采用“任务驱动”的教学模式和学生“自主、合作、探究”的学习模式。通过对学生提出一个熟悉而又感兴趣的任务,用以提高学生的兴趣和好奇心。情景中的任务产生问题,学生通过解决该问题
下列国家中,采用普通法院模式进行违宪审查的是()
Petroleumproducts,suchasgasoline,kerosine,homeheatingoil,residualfueloil,andlubricatingoil,allcomefromonesour
(catch)______cheatingbytheteacherintheexam,Davidscoredzeroinmathexam.
最新回复
(
0
)