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
Recently, the Change of the global climate brings about the fatal disasters all over the world. It not only worries the world’s
Recently, the Change of the global climate brings about the fatal disasters all over the world. It not only worries the world’s
admin
2010-06-30
39
问题
Recently, the Change of the global climate brings about the fatal disasters all over the world. It not only worries the world’s population but also troubles the scientists the world over. When global warming finally came it stuck with a vengeance. In some regions temperatures rose several degrees in less than a century. Sea levels shot up nearly 400 feet flooding coastal settlements and forcing people to migrate inland. Deserts spread throughout the world as vegetation shifted drastically in North America Europe and Asia. After driving many of the animals around them to near extinction people were forced to abandon their old way of life for a radically new survival strategy that resulted in widespread starvation and disease. The adaptation was farming the global-warming crisis that gave rise to it happened more than 10 000 years ago.
As environmentalists convene in Rio de Janeiro this week to ponder the global climate of the future earth scientists are in the midst of a revolution in understanding how climate has changed in the past--and how those changes have transformed human existence. Researchers have begun to piece together an illuminating picture of the powerful geological and astronomical forces that have combined to change the planet’s environment from hot to cold, wet to dry and back again over a time period stretching back hundreds of millions of years.
Most importantly, scientists are beginning to realize that the climatic changes have had a major impact on the evolution of the human species. New research now suggests that climate shifts have played a key role in nearly every significant turning point in human evolution from the dawn of primates some 65 million years ago to human ancestors rising up to walk on two legs, from the huge expansion of the human brain to the rise of agriculture. Indeed the human history has not been merely touched by global climate change. Some scientists argue it has in some instances been driven by it.
The new research has profound implications for the environmental summit in. Rio. Among other things the findings demonstrate that dramatic climate changes is nothing new for planet Earth. The benign .global environment that has existed over the past 10 000 years—during which agriculture writing cities and most other features of civilization appeared--is a mere bright spot in a much larger pattern of widely varying climate over the ages. In fact the pattern of climate change in the past reveals that Earth’s climate will almost certainly go through dramatic changes in the future--even without the influence of human activity.
Earth scientists have come to understand that climate______.
选项
A、is going through a fundamental change
B、has been getting warmer for 10 000 years
C、will eventually change from hot to cold
D、has gone through periodical changes
答案
D
解析
事实细节题。答案在文章第二段最后一句,特别要注意其中back again over a time period。这句的意思是:几亿年以来,地球环境从暖变冷,由湿变干,呈周期性变化。所以,选项D是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/kfJd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Somedoctorsaretakinganunusualnewapproachtocommunicatebetterwithpatients—theyareletting【C1】______readthenotestha
Somedoctorsaretakinganunusualnewapproachtocommunicatebetterwithpatients—theyareletting【C1】______readthenotestha
HowdoesSerkis’versiondifferfromtheoriginalone?
Oneofthemostalarmingthingsaboutthecrisisintheglobalfinancialsystemisthatthewarningsignshavebeenouttherefo
Ontheheelsofitsrecentdecisiontocriminalizeconsumerswhoripsongsfromalbumstheyhavepurchasedtotheircomputers(or
A=RotherhitheB=BarnesC=WillesdenD=King’sCrossWhichcity...usedtohavelotofproblemssuchasdrugs,streetc
AccordingtotheAmericanAcademyofDermatology,anestimated10to50millionpeopleinthiscountryhaveanallergicreaction
Whatisyourresponsibilitywhenyou,asaschoolprincipal,gettheteacher’sreport?
In1935,MaryKaygotmarriedforthefirsttime.MaryKayworkedforMr.Heathin1963.
TheOysterBaratGrandCentralStationinNewYorkprovidedFlemingwithhisbestmealinAmerica.Theoysterstewhelikedso
随机试题
电子商务活动中,公共互联网络上流动的内容包括()
季铵化合物控制菌斑的主要作用是A.干扰菌斑附着B.破坏菌斑基质C.清除菌斑内毒素D.改变细菌细胞膜的渗透性E.控制菌斑繁殖
甲婚后经常被其丈夫乙打骂,向某区人民法院提起离婚诉讼,该区人民法院审理后认为双方感情确已破裂,判决准予离婚,并对共有财产进行了分割。甲认为区人民法院对财产的处理不公平,于是向中级人民法院提起上诉。在二审审理期间,乙因意外事故死亡,二审法院遂裁定终结诉讼。关
关于包气带防污性能,说法正确的有()。
下列关于风险监管的说法中,不正确的是()
下列各项中,应计入加工收回后直接出售的委托加工物资成本的有()。
要约:凡一个或一个以上特定的人提出的订立合同的建议,如果其内容十分确定,并且表明要约人在其要约一旦得到承诺就受其约束的意思,即构成要约。根据以上定义,下列陈述中,不属于要约的一项是( )
隶书分为()、()两种。
计算机网络分为局域网、城域网和广域网,下列属于局域网的是_______。
"EngineeringClass"Whatisthislecturemainlyabout?
最新回复
(
0
)