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
When global warming finally came it stuck with a vengeance(异乎寻常地). In some regions temperatures rose several degrees in less tha
When global warming finally came it stuck with a vengeance(异乎寻常地). In some regions temperatures rose several degrees in less tha
admin
2014-12-26
24
问题
When global warming finally came it stuck with a vengeance(异乎寻常地). 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 10000 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 been 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 important 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(灵长目动物)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, though some scientists argue that there are some instances having been driven by it.
The new research has profound implications for he environmental summit in Rio. Among other things the findings demonstrate that dramatic climate changes is nothing new for planet Earth. The benign(宜人的)global environment that has existed over the past 10000 years—during which agricultural 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.
Scientists believe that human evolution______.
选项
A、has seldom been accompanied by climatic changes
B、has exerted little influence on climatic changes
C、has largely been affected by climatic changes
D、has had a major impact on climatic changes
答案
C
解析
细节题。根据Scientists、human evolution将答案定位到第三段Mostimportant scientists are beginning to realize that the climatic changes have had a majorimpact on the evolution of the human species.New research now suggests that climateshifts have played a key role in nearly every significant turning point in human evolution,“最重要的是,科学家已经开始意识到气候的变化对人类进化有着重要影响。新的研究表明气候变化几乎在人类进化的每个重要转折点都起到关键的作用”。也就是说,科学家认为人类的进化深受气候变化的影响,C选项内容符合,所以答案选C。
转载请注明原文地址:https://kaotiyun.com/show/hzh7777K
0
大学英语六级
相关试题推荐
Caffeinewillgetyougoingduringthedaybutcouldleaveyoutossingandturningatnight—unlessyou’rea"nightowl"【B1】_____
A、Studyingforalongtimeforthejob.B、Spendingtoomuchtimeontheroad.C、Examiningdirtyplacesinthehouses.D、Havingf
Whenshoppingonline,itisimportanttobearafewbasicrulesinmind.Notonlywillthesehelpkeepyousafebuttheywillal
A、Takeaphysicalexaminationregularly.B、Nevertakedifferentmedicinesatthesametime.C、Nevertakemedicineswithoutdocto
AteamofGermanscientistshastakenpicturesofanancientfishthatwasthoughttohavediedoutlongago.Thepicturesmayp
A、10:30PM.B、11:00PM.C、11:30PM.D、12:00PM.D男士说,餐馆周末的营业时间一直到午夜,即12:00pm。故答案是D。关键是分辨weekdays和weekend的不同营业时间,做笔记时要迅速和完整地记下细节,例如:w
Learningisanessentialprocessforlivingthingstoacquirenecessaryskillsandbehaviors.Scientistshavealreadyfoundthat
A、Thewavecarpetisprettycostly.B、Properly-installedwavecarpetwouldn’thurttheenvironment.C、Currentavailablewaveene
Crash.Shatter.Boom.Crash.Shatter.Boom.Smatteringofsillydialogue.Prettygirlscreams:"Dad!"Crash.Shatter.Boom.Sill
Crash.Shatter.Boom.Crash.Shatter.Boom.Smatteringofsillydialogue.Prettygirlscreams:"Dad!"Crash.Shatter.Boom.Sill
随机试题
测定密度瓶水值时,将蒸馏水装至密度瓶()称量。
纳税人采取邮寄方式办理纳税申报的,以()为实际申报日期。
审计后的政府综合财务报告与审计报告依法报本级人民代表大会常务委员会备案,并按规定向社会公开。()
关于天文,下列说法中不正确的一项是()
艾宾浩斯的研究表明,遗忘在学习之后立即开始,其趋势呈负加速。()
依据官方政府的记录,某地区的自杀率在1987年比1960年高17倍。自杀率急剧增加归因于社会变化的结果——因为某地区从一个捕鱼打猎的社会转变到了一个工业社会。下面哪一项,如果正确,最反对上面的结论?
考虑游在一起的3条鱼的鱼群;每条鱼被捕食者Y看见的空间被定义为:以鱼为中心,Y所能看见的最大距离为半径的球体。当Y在三个球体中的一个球体中时,鱼群易遭受攻击。因为鱼群是一个紧密的群体,球体在很大程度上重叠。—下面哪一项可以从上文推断出来?
设向量组α1,α2,α3线性无关,向量β1能由α1,α2,α3线性表出,向量β。不能由α1,α2,α3线性表出,则必有[].
下列关于中国半殖民地半封建社会的基本特征,表述正确的有
_____isfamilyviolencemoreofaproblemthaninthiscity.
最新回复
(
0
)