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
2015-11-16
26
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.
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://kaotiyun.com/show/tXRO777K
0
成人本科学位英语
相关试题推荐
In1901,H.G.Wells,anEnglishwriter,wroteabook______atriptothemoon.
Icanhardlyimaginethegreattroubletheywillhavetotake______theirwar-struckcountry.
(Eventhough)Sandra(hasbeenstudying)Englishforthreeyears(before)shecametotheUnitedStates,itisdifficultforher
DotheArgentinianreallybelievethatbecauseelevenoftheirmenprovedthemostskilfulatfootball,theirnationisinevery
Somepeoplearguethatthepressureoninternationalsportsmenandsportswomenkillstheessenceofsport—thepursuitofpersona
Nooneimaginedthattheapparently______businessmanwasreallyacriminal.
Ifyousmoke—particularlycigarettes—youarefarmorelikelythananon-smokertosufferordiefromseveralmajordiseases—nota
______wecangetridofpollutionisstillabigproblem.
Notallmemoriesaresweet.Somepeoplespendalltheirlivestryingtoforgetbadexperiences.Violenceandtrafficaccidentsc
Yourcomments______myworkhaveprovedtobehelpful.
随机试题
下列各项中,可以表明独立项目具有可行性的有()。
职业道德是指人们在特定的职业活动中应遵循的行为规范的总和。()
患者,女,26岁。已婚。妊娠3个月,尿少色黄,尿时艰涩而痛,心烦,口舌生疮,舌红少苔,脉数。治疗应首选
目前,我国煤矿安全监察实行垂直管理、分级监察的管理体制。煤矿安全监察体制的特点为()。
信用证的开证方式主要有()。
我国合同法规定,债务人难以履行债务的,可以将标的物提存的情形有()。
现代教师应具备的能力包括()
价格变动会引起需求量变动。在日常生活中,价格变动对需求量影响较小的一组商品是()。
在考生文件夹下,打开文档word.docx,按照要求完成下列操作并以该文件名(word.docx)保存文档。【文档开始】可怕的无声环境科学家曾做过一个实验,让受试者进入一个完全
WhathappenedonJanuary27th,1967?
最新回复
(
0
)