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
New ice core samples taken from the centre of the Greenland ice-sheet have given a detailed record of the last "interglacial (间冰
New ice core samples taken from the centre of the Greenland ice-sheet have given a detailed record of the last "interglacial (间冰
admin
2010-09-10
26
问题
New ice core samples taken from the centre of the Greenland ice-sheet have given a detailed record of the last "interglacial (间冰期)" which rail from about 135,000 to 115,000 years ago. The cores, taken from a depth of 2,780 to 2,870 metres, show that during this peroid the climate oscillated(摆动) between three states instead of remaining in one, as in the whole of recorded human history. The middle state was like our own, but the others were either’ much colder or warmer.
Worse, it seems that the climate flipped from one condition to another very rapidly. "It apparently took very little time, perhaps less than a decade or two, to shift between the states," Dr. J.C. W. White of the Institute of Arctic and Alpine Research at the University of Colorado wrote earlier this year in the scientific journal, Nature: "We humans have built a remarkable socio-economic system during perhaps the only time when it could be built, when the climate was stable enough to let us develop the agricultural infrastructure(基础设施) required to maintain an advanced society."
We do not know why we have been so blessed. But if the Earth had an operating manual, the chapter on climate might begin with a warning that the system has been adjusted at the factory for optimum comfort-- so don’t touch the dials.
Unfortunately, we have been "twidling the knobs (旋钮)" for decades. In December 1995 the official Intergovernmental Panel on Climatic Change ( 1PCC. , which represents the work of 2,000 top meteorologists from around the world, concluded that global warming due to human activities is probably already taking place. Global warming sounds deceptively favorable to inhabitants of countries which currently experience harsh winters. In fact, with global warming, the world would struggle to cope with the effects of even a steady, gradual warming. This was spelt out to members of the British Royal Society by Sir John Houghton, chairman both of Britain’ s Royal Commission of Environmental Pollution and of one of the main IPCC working groups. Houghton pat forward the IPCC picture of seas flooding much of Egypt, southern China and Bangladesh, making "many millions" of people homeless; of horde’s of "environmental refugees" and of wars breaking out over dwidling (becoming gradually smaller) fresh water’ supplies, as world rainfall patterns changed.
There is at least a chance that the world could adapt to steady warming if it happened slowly enough. However, many scientists, believe that even this prediction from the IPCC is too cautious.
According to the author, IPCC pictures put forward by Houghton shows ______.
选项
A、effects of global warming
B、causes of global warming
C、examples of human damage to the environment
D、instances of natural disasters threatening human existence
答案
A
解析
IPCC提供的照片、图片显然是为了说明global warming 的 effects。请参阅上一题解答。
转载请注明原文地址:https://jikaoti.com/ti/mOAFFFFM
0
大学英语四级
相关试题推荐
CreativeJusticeTheAncientMethodofPunishmentThrowingcriminalsinjailisanancientandwidespreadmethodofpuni
A、SheworkedonthedraftofAmericanConstitution.B、ShewasthechairmanoftheNationalWomen’sAssociation.C、Shewasborni
A、Acollegedegree.B、Anageofatleast18years.C、Livinginthecollege.D、Goodcreditrecord.B询问加入该校图书馆的资格,对话中女士提到The18ye
TheArtofPublicSpeakingIfyouweretotape-recordoneofDavidLetterman’scomedyroutines,memorizeitwordforword,a
TheArtofPublicSpeakingIfyouweretotape-recordoneofDavidLetterman’scomedyroutines,memorizeitwordforword,a
TheArtofPublicSpeakingIfyouweretotape-recordoneofDavidLetterman’scomedyroutines,memorizeitwordforword,a
A、Heneedssometomatojuice.B、Hispantsarestained.C、Hispantsneedmending.D、Hispantsaremissing.B男士将番茄酱洒在了新的白短裤上,据此选B。
A、Playataperecorder.B、Takeapicture.C、Repairatypewriter.D、Startacar.A题目问这位女士可能要做什么。男土问女士有没有检查开关(powerplug)和播放键(the
A、Shehasheardrockandrollmusic.B、Shedoesnotenjoyclassicalmusic.C、Sherarelylistenstomusic.D、Sheisnotintereste
TheAdvantagesandDisadvantagesofBuyingLotteryTomatoRipeningTomatoesgiveoffminutequ
随机试题
FakeholidayvillawebsitespromptwarningA)DuringtheBritishwinter,thethoughtoftwoweeksinacoastalvilla(别墅)w
下列选项中不属于杜威教育思想的是()
用盐水洗涤蔬菜可使蔬菜中的虫卵和腻虫在盐水的作用下脱落,从而洗掉虫卵和腻虫。()
平原地区城市道路机动车最大纵坡宜控制在()以下,最小纵坡应大于或等于()。
性质不同的填料,应水平分层、分段填筑,分层压实。同一水平层路基的全宽应采用同一种填料,不得混合填筑。每种填料的填筑层压实后的连续厚度宜大于()。
法律由国家制定或认可,为统治阶级意志所决定。()
若有4个进程共享同一程序段,每次允许3个进程进入该程序段,用P、V操作作为同步机制,则信号量S的取值范围是()。
多边贸易谈判
设随机变量X的概率分布P(X=k)=,k=1,2,…,其中a为常数。X的分布函数为F(x),已知F(b)=,则b的取值应为________。
Oxfordisacitywithsuchamind-blowingreputationthatmanywhocomeherefindthemselves______bytheplaceandcan’twaitt
最新回复
(
0
)