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
Researchers said it was clear that the world’s oceans play a major role in queuing up rapid climate changes, but that thus far t
Researchers said it was clear that the world’s oceans play a major role in queuing up rapid climate changes, but that thus far t
admin
2009-02-13
62
问题
Researchers said it was clear that the world’s oceans play a major role in queuing up rapid climate changes, but that thus far the mechanics (机制,结构) of such changes were poorly under stood.
"It’s like being blindfolded and walking toward the edge of a cliff," said Wallace Brocker, a professor of environmental sciences at Columbia University. "We don’t understand (the factors) so we don’t really know what to look for."
Using ice cores drilled from glaciers and other ice sheets, the researchers have developed a model showing world temperatures’ rising and falling with unsettling frequency over the past110 000 years.
While some of the changes have been slow and steady, such as the end of the last Ice Age some 12 000 years ago, others have been swift and unexpected, such as the rapid warming of the North Atlantic from 1920 to 1930 and the Dust Bowl drought of the 1930s.
The most drastic temperature changes—believed to be as much as 18 degrees Fahrenheit over the space of just a few years—exceed any recorded in human history, they said.This was not in tended to alarm the public, but that they hoped it would stimulate policy makers to prepare for the possibility of rapid temperature flux.
Greenhouse gases, emitted by fossil fuels such as oil and coal, have been linked by many re searchers to a rise in global temperatures. A 1997 Kyoto Treaty on global warming sought to cut emissions of such gasses by developed nations, but the Bush administration this year spurned (轻蔑或傲慢地拒绝) the treaty, saying pollution controls would be too costly for the U.S. economy.
The NAS panel called for research to identify what it described as "no-regrets" measures that would cost relatively little and would be good policies regardless of the extent of environmental change.
Such measures could include regulations to reduce damage to water, air and land, or slow climate change, or helping societies cope with abrupt climate changes by developing new financial instruments such as weather derivatives (衍生证券) and catastrophe bonds to reflect the risks.
Societies have faced both gradual and abrupt climate changes for millennial and have learned to adapt through various mechanisms, such as moving indoors, developing irrigation for crops, and migrating away from inhospitable (不适宜居住的) regions. It is important not to be fatalistic (宿命论的) about the threats posed by abrupt climate changes.
选项
A、so far we are still almost ignorant of the mechanics of rapid climate changes
B、now we are still causing serious damages to the environment
C、we are still not sure whether ocean plays a role in causing rapid climate changes
D、so far we are still unaware of the possibility of rapid climate changes
答案
A
解析
句子理解+上下文逻辑题。根据文章开头两段,我们很清楚海洋在引起气候快速变化中起着很重要作用,但我们仍不太了解这些变化的原因,因此我们就不知道该采取什么措施。因此,这就像蒙上双眼走向悬崖一样。所以A为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/RAHO777K
0
在职攻硕英语联考
相关试题推荐
Aginghappenstoallofus,andisgenerallythoughtofasanaturalpartoflife.Itwouldseemsillytocallsuchathinga"d
Thearticleopensandcloseswithdescriptionsoftwonewsreports,each______onemajorpointincontrastwiththeother.
Nowhereinnatureisaluminumfoundfree,owingtoitsalways______withotherelements,mostcommonlywithoxygen.
Accordingtothelatestreport,consumerconfidence______abreathtaking15pointslastmonth,toitslowestlevelintenyears.
Myfatherwasanuclearengineer,averyacademically______manwithmultipledegreesfromprestigiousinstitutions.
Thescientificcommunitywas______whenalivingspecimenofthecoelacanth,longthoughttobe______wasdiscoveredbydeep-seaf
(浙江大学2009年试题)Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience,a
(浙江大学2009年试题)Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience,a
(浙江大学2009年试题)Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience,a
Whenaneight-lanesteel-truss-archbridgeacrosstheMississippiRiverinMinneapoliscollapsedduringtheeveningrushhouron
随机试题
女,26岁,因吵架服药一口,15分钟后家人发现其呕吐,呼之不应,送医院抢救。检查:患者处于嗜睡状态,摇动身体可唤醒,并能含糊回答简单问题;瞳孔针尖样,皮肤多汗,双肺啰音,心律整,肝脾不大。用什么办法可确定为吗啡中毒?
根据《中华人民共和国城市房地产管理法》的规定,()必须符合土地利用总体规划、城市规划和年度建设用地计划,由市、县人民政府有计划、有步骤地进行。
下列关于动产质押贷款正确的是()
下列谱例出自贝多芬《第五交响曲·命运》提供的哪一个乐章?()
县级人民政府教育行政部门应当均衡配置本行政区域内学校师资力量,组织校长、教师的(),加强对薄弱学校的建设。
①人与人之间的文化情趣偏差、文化价值溃散,其实才是让哪怕身边最近的人,心灵也容易发散到彼此无法聚拢的地方 ②人与人之间如此,由特定人群集聚的地域之间,也同样会形成巨大的文化环境差异③存今天,绝不要轻视文化对内心的穿透力④不妨就以“婚
Linux系统中,()服务的作用与Windows的共享文件服务作用相似,提供基于网络的共享文件/打印服务。
关于HDLC协议的帧顺序控制,下面的语句中正确的是(13)。
PlansforoneofBritain’sbiggesthousingdevelopments,of5,000homesworthhundredsofmillionsofpounds,mayhavetobeab
Heappreciated______thechancetodeliverhisthesisintheannualsymposiumonComparativeLiterature.
最新回复
(
0
)