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
考研
Climate change is supposed to unfold slowly, over decades. But that is not true up in the great white north, as those attending
Climate change is supposed to unfold slowly, over decades. But that is not true up in the great white north, as those attending
admin
2018-03-01
21
问题
Climate change is supposed to unfold slowly, over decades. But that is not true up in the great white north, as those attending the AAAS meeting’s session on climate change in the Arctic were reminded. Temperatures there are 2°C higher than their long-term average, and the upper layers of parts of the Arctic Ocean are hotter than they have been for at least 2,000 years. Summer sea ice has been vanishing faster than even the gloomiest researchers thought likely, with some now predicting the first completely ice-free summer as soon as the 2020s.
The Arctic is not, though, isolated from the rest of the world; rapid changes there could have knock-on effects elsewhere. Whether or not that is happening was a question addressed by Jennifer Francis, an atmospheric scientist at Rutgers University. It is a topical subject. Along with much of the rest of America, Chicago endured a fierce and prolonged cold snap in January, in which temperatures fell to -27°C, the lowest since 1884. Meanwhile, Brits at the conference were fleeing a country that had been soaked by the heaviest winter rains in two and a half centuries, and battered by a seemingly endless succession of Atlantic storms and gales.
Campaigners in both countries have been quick to blame climate change for the rotten weather. But things are rarely so straightforward in climatology. The best Dr Francis could offer was a theory as to why a warmer Arctic might be expected to lead to wilder weather in mid-latitudes, and some tentative but suggestive evidence that this is already happening.
Her idea rests on the jet stream, a powerful, persistent, high-altitude "river of air" which flows around the world from west to east, affecting the weather as it goes. The jet stream is driven in part by the temperature difference between cold Arctic air and the warmer air of middle latitudes. Because the Arctic is warming more rapidly than the rest of the planet, that difference is shrinking. This ought to produce a less potent jet stream. And a less potent jet stream is a more unpredictable one.
What can be inferred from Paragraph 2?
选项
A、Climate change of the ocean may have an impact on the land as well.
B、Chicago’s cold temperature is unrelated to the warming of the Arctic.
C、The whole America has experienced the lowest temperature since 1884.
D、Britain has been suffering from the heaviest storms and rains in history.
答案
A
解析
选项A对应第二段首句:The Arctic is not, though, isolated from the rest of the world; rapid changes there could have knock-on effects elsewhere. 大意为:然而,北冰洋并不与世隔绝;北冰洋气候迅速变化可能对其他地方产生连锁效应。故该项表述是正确的。选项B显然与A表述相反,故错误。选项C中的“The whole America”错误,原文说的是“Along with much of the rest of America, Chicago…”,“the whole”显然与原文不符合,故错误。选项D中的“in history”与原文“in two and a half centuries”不符,故错误。综上所述,本题答案为选项A。
转载请注明原文地址:https://kaotiyun.com/show/DyBZ777K
0
考研英语一
相关试题推荐
Thisweek,manyAmericanswillbebuyingintothesamedream:winningtheunprecedentedlylarge$1.3billionPowerballjackpoto
Ah,thenaivetyoftheoldergeneration.Nearly500eminentastronomers,biologists,chemists,physicistsandearthscientistsh
ThePresident,inwhosehandstheUSgovernmentalsystemplacestheexecutivepower,owesneitherhiselectiontothatofficeno
Weareseeingaseriesofparadoxesattheturnofthemillennium.【F1】Ontheonehand,globalizationmeansthatnationalfrontie
LiedetectorsarewidelyusedintheUnitedStatestofindoutwhetherapersonistellingthetruthornot.【F1】Polygraphers,th
Familiarasitmayseem,gravityremainsamysterytomodernphysics.Despiteseveraldecadesoftrying,scientistshavefailed
WhenGeorgeBushleftthepresidencyonJanuary20th,manyAmericanswerekeentoturnthepage.Theyhavewarmlywelcomedanew
Manywilldoubttobaccoindustryclaimsthatitissharpeningitssciencetoevaluate"healthiercigarettes".Butthat’swhatwi
Whatmakesagreathighschool?Americansthinkalotofthingsdo,fromoutstandingacademicsorasupportiveenvironmentfors
Whatmakesagreathighschool?Americansthinkalotofthingsdo,fromoutstandingacademicsorasupportiveenvironmentfors
随机试题
在PowerPoint的幻灯片视图下,要删除选定的幻灯片,应______。
关于直肠癌,哪项是错误的
张某是市妇联主任,私自将上级拨发的救助残疾儿童的救济款30万元借给亲戚吴某做生意周转使用,半月后吴某将该款全部归还。张某的行为构成何罪:
战略变化呈现无方向或无重心的特点,属于战略变革发展阶段的()。
某企业使用标准成本法,某一产品的正常生产能量为1000单位,标准成本为:项目金额直接材料0.2吨×100元/吨
“大北京”概念是在下列哪个报告中提出的()
在3支大小相同的试管中各加入2mL5%的H2O2溶液,再向其中2支试管中分别加入少量MnO2粉末,2滴1mol/LFeCl3溶液,对比观察现象,该实验的目的是()。
简述埃里克森的人格发展阶段理论在教育心理学中的作用。
6月5日,全国高校共青团思想政治工作电视电话会议强调,把加强思想政治引领摆在首要位置,把()教育贯穿于高校共青团育人全过程。
加工一批材料,甲车间单独完成需要20小时,乙车间需要30小时。两个车间共同工作一段时间后发现,加工总数正好是总量的一半,此时甲车间比乙车间多加工4吨。则这批材料总共有:
最新回复
(
0
)