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
Climate Change; The Long Reach 1 Earth is warming. Sea levels are rising. There’ s more carbon in the air, and Arctic ice is
Climate Change; The Long Reach 1 Earth is warming. Sea levels are rising. There’ s more carbon in the air, and Arctic ice is
admin
2014-09-13
34
问题
Climate Change; The Long Reach
1 Earth is warming. Sea levels are rising. There’ s more carbon in the air, and Arctic ice is melting faster than at any time in recorded history. Scientists who study the environment to better gauge(评估)Earth’ s future climate now argue that these changes may not reverse for a very long time.
2 People burn fossil fuels like coal and oil for energy. That burning releases carbon dioxide, a colorless gas. In the air, this gas traps heat at Earth’ s surface. And the more carbon dioxide released, the more the planet warms. If current consumption of fossil fuels doesn’ t slow, the long-term climate impacts could last thousands of years—and be more severe than scientists had been expecting. Climatologist Richard Zeebe of the University of Hawaii at Manoa offers this conclusion in a new paper.
3 Most climate-change studies look at what’ s going to happen in the next century or so. During that time, changes in the planet’ s environment could nudge(推动)global warming even higher. For example, snow and ice reflect sunlight back into space. But as these melt, sunlight can now reach—and warm—the exposed ground. This extra heat raises the air temperature even more, causing even more snow to melt. This type of rapid exaggeration of impacts is called a "fast feedback".
4 Zeebe says it’ s important to look at fast feedbacks. However, he adds, they’ re limited. From a climate change perspective, "This century is the most important time for the next few generations, " he told Science News. "But the world is not ending in 2100. "For this new study, Zeebe now focuses on "slow feedbacks". While fast feedback events unfold over decades or centuries, slow feedbacks can take thousands of years. Melting of continental ice sheets and the migration of plant life—as they relocate to more comfortable areas—are two examples of slow feedbacks.
5 Zeebe gathered information from previously published studies investigating how such processes played out over thousands of years during past dramatic changes in climate. Then he came up with a forecast for the future that accounts for both slow and fast feedback processes. Climate forecasts that use only fast feedbacks predict a 4.5 degree Celsius(8.1 degree Fahrenheit)change by the year 3000. But slow feedbacks added another 1.5° C—for a 6°C total increase, Zeebe reports. He also found that slow feedback events will cause global warming to persist for thousands of years after people run out of fossil fuels to burn.
A. Rising of Sea Levels
B. Impact of Burning Fossil Fuels
C. Fast Feedbacks
D. Slow Feedbacks
E. Unpredictability of Feedback Processes
F. A Prediction of Future Climate Change
Paragraph 5
选项
答案
F
解析
第五段的第二句是主题句,主要讲的是Zeebe在考虑了“快速反馈”和“缓慢反馈”的同时,对未来气候变化做的一种预测。
转载请注明原文地址:https://jikaoti.com/ti/RrysFFFM
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
Vocationaleducationreferstoeducationforausualvocation.Itisstatedinthepassagethatthetwomajorchangesinvocati
ChangesintheAmericanFamilyHowmuchchangehasreallyoccurredintheAmericanfamilyandwhataretheimplicationsofthese
ASoot’sRoleinChangesintheClimateandtheAtmosphereBObservationsofWarmingintheNorthernHemisphereCExplanation
ASoot’sRoleinChangesintheClimateandtheAtmosphereBObservationsofWarmingintheNorthernHemisphereCExplanation
ASoot’sRoleinChangesintheClimateandtheAtmosphereBObservationsofWarmingintheNorthernHemisphereCExplanation
TheWeddellsealofAntarcticacandivetoadepthofabout,1,600feetandremainsubmergedforaslongasanhourandtenminu
MobilePhoneandDiseasesAstudybyscientistsinFinlandhasfoundthatmobilephoneradiationcancausechangesinhuman
MobilePhoneandDiseasesAstudybyscientistsinFinlandhasfoundthatmobilephoneradiationcancausechangesinhuman
MobilePhoneandDiseasesAstudybyscientistsinFinlandhasfoundthatmobilephoneradiationcancausechangesinhuman
MobilePhoneandDiseasesAstudybyscientistsinFinlandhasfoundthatmobilephoneradiationcancausechangesinhuman
随机试题
从2001年7月2日起,银行间债券市场现券交易采用的交易模式是()。
部件家族(PartFamilies)是用于定义几何形状配置完全相同,而尺寸大小不同的系列零件。
Theengine______smokeandsteam.
下列选项中,属于行为治疗模式的技术的是()。
心理咨询保密例外的情况包括()
2008年5月,工业和信息化部、国家发展和改革委员会、财政部发布《关于深化电信体制改革的通告》,鼓励中国电信收购中国联通CDMA网(包括资产和用户),中国联通与中国网通合并,中国卫通的基础电信业务并入中国电信,中国铁通并入中国移动,开始了第三次电信重组。
2015年1—3月,G市A区全区完成固定资产投资84.17亿元,同比增长6.1%,增速比去年同期回落4.3个百分点。其中,房地产开发投资31.52亿元,同比增长1.6倍。分产业来看,第二产业完成投资0.54亿元,同比下降73.5%;第三产业继续发挥投资主导
一个好的研究选题的特征有哪些?[北京师范大学2017年研]
Whichofthefollowingmightbeapropertitleforthechart?
数据库技术是在下列某系统(技术)的基石出上发展起来的,它是______。A)通信网络技术B)人工数据管理C)文件系统D)操作系统
最新回复
(
0
)