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
Humans have altered the world’s climate by (1)_____ heat-trapping gases since almost the beginning of civilization and even prev
Humans have altered the world’s climate by (1)_____ heat-trapping gases since almost the beginning of civilization and even prev
admin
2009-04-27
59
问题
Humans have altered the world’s climate by (1)_____ heat-trapping gases since almost the beginning of civilization and even prevented the start of an ice age several thousand years ago, a scientist said.
Most scientists (2)_____ a rise (3)_____ global temperatures over the past century (4)_____ to emissions of carbon dioxide (5)_____ human activities like driving cars and operating factories.
Dr. William Ruddiman, a professor at the University of Virginia, said at a meeting of the American Geophysical Union (6)_____ humans’ effect (7)_____ climate went back nearly 10, 000 years (8)_____ people gave up hunting and gathering and began farming.
In a commentary accompanying the article, Dr. Thomas J. Crowley of Duke University, said he (9)_____ Dr. Ruddiman’s premise at first. "But when I started reading, Dr. Crowley wrote, "I could not help but (10)_____ whether he just might be (11)_____ something."
The climate of the last 10,000 years has been unusually stable, (12)_____ civilization to flourish. But that is only because people chopped down swaths of forest in Europe, China and India for croplands and pastures. Carbon dioxide (13)_____ by the destruction of the forests, plus methane, another heat-trapping gas, (14)_____ by irrigated rice fields in Southeast Asia, trapped enough heat to (15)_____ an expected natural cooling.
Levels of carbon dioxide and methane rise and fall in natural cycles (16)_____ thousands of years, and both reached a peak at the end of the last ice age 11;000 years ago. Both then declined (17)_____ expected.
Both (18)_____ declining through the present day, leading to lower temperatures, and a new ice age should have begun 4,000 to 5,000 years ago, Dr. Ruddiman said. Instead, levels of carbon dioxide reversed 8,000 wears ago. The decline (19)_____ methane levels reversed 5,000 years ago, (20)_____ with the advent of irrigation rice farming.
选项
A、aggravate
B、intensify
C、offset
D、provoke
答案
C
解析
动词辨析。offset 抵消,aggravate加剧,intensify加强,provoke 煽动。只有offset符合文意。
转载请注明原文地址:https://kaotiyun.com/show/Q8a4777K
0
考研英语一
相关试题推荐
Foralmosttwocenturiesnow,scientistshavenoticedaplace’ssuicideratebearstroublinglinkstothechangingoftheseason
TurnontheTVorscrollthroughInstagram,andit’snotdifficulttofindaseaofblondpoliticians,newscommentators,celebr
Thenewpaperwasspurredbythediscoveryofseveral120,000-year-oldtoolsatadesertarchaeologicalsiteintheUnitedArab
[A]Howtoturnahobbyintoabusiness[B]Expensivetoysarenotsmartchoices[C]Smartmoneychoicesmakeafamilylif
[A]Theyfocusattentionmainlyonthemselves[B]Theytreatyourpropertylikeit’stheirown[C]Theycan’tacceptyout
Readthefollowingtextandanswerquestionsbyfindinginformationfromtherightcolumnthatcorrespondstoeachofthemarked
Onthesurface,Marsisthepictureofdesolation.Abarrenlandremains【C1】______forhundredsofmillionsofyears,motionless【
DuringthenextseveralweeksIwentcompletelytothewolves.Itookatinytentandsetitupontheshoreofbay.Thebigtel
ReadthefollowingtextandanswerthequestionsbychoosingthemostsuitablesubtitlefromthelistA-Gforeachnumberedpara
Aprettypotplantmightmakeanunemotionalworkspacefeelmorepersonal.Butnewresearchhasrevealedthatofficeplantsdo
随机试题
对自体活性物质不正确的描述是:
多聚核糖体
关于大面积深度烧伤创面手术时机,以下说法正确的是
以下哪项行为不属于护士行为规范要求的内容?()
喹诺酮类药物不宜用于
某商业中心地上4层、地下1层,建筑高度20m,耐火等级一级,每层层高均为5m,每层建筑面积均为10000m2,按有关国家工程建设消防技术标准配置了自动喷水灭火系统、火灾自动报警系统等消防设施及器材。某歌舞厅位于该商业中心的地下一层至地上四层,每层歌舞厅的建
张某自大学毕业后,实际工作年限13年,在甲公司的工作年限为3年。2009年4月1日,张某因患病开始在家中休息。根据《劳动合同法》的规定,下列表述正确的是()。
Nativeads—oradsthattakeonthelookandfeelofthecontentsurroundingthem—aretakingoverdigitaladvertising.By
以下属于扩张性财政政策的有()。
张伟是集邮爱好者,一天他以2070元的价格分别卖出了自己收集的两套邮票,一套赚了15%,而另一套亏了10%。那么张伟出售这两套邮票的盈利或亏损情况为()。
最新回复
(
0
)