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
There are hidden factors which scientists call " feedback mechanisms ". No one knows quite how they will 【C1】______ with the cha
There are hidden factors which scientists call " feedback mechanisms ". No one knows quite how they will 【C1】______ with the cha
admin
2010-06-26
20
问题
There are hidden factors which scientists call " feedback mechanisms ". No one knows quite how they will 【C1】______ with the changing climate. Here’s one example: plants and animals, 【C2】______ to climate change over centuries.【C3】______ the current estimate of half a degree centigrade of warming per decade, vegetation may not keep 【C4】______. Climatologist James Hansen predicts climate zones will shift toward the poles【C5】______50 to 75 kilometers a year—faster than trees can naturally migrate. Species that【C6】______ themselves in an unfamiliar environment will die. The 1,000-kilometre wide strip of forest running【C7】______Canada, the USSR and Scandinavia could be cut 【C8】______. Millions of dying trees would soon lead to massive forest fires, 【C9】______ tons of CO
2
and further boosting global warming.
There are dozens of other possible "feedback mechanisms". Higher temperatures will【C10】______ condensation and increase cloudiness, which may actually【C11】______ down global warming. Others, like the "albedo" effect, will do the【C12】______. The "albedo" effect is the amount of solar energy reflected by the earth’s surface. As the northern ice and snow【C13】______and the darker sea and land pokes through, more heat will be absorbed,【C14】______ the temperature increase.
Even if we【C15】______ to magically stop all greenhouse-gas【C16】______ tomorrow the impact on global climate would continue for decades.【C17】______ will simply make the problem worse. In the developed world prosperity has been 【C18】______on 150 years of cheap fossil fuels. Material progress has been linked 【C19】______ energy consumption. Today 75 percent of all the world’s energy is consumed by a quarter of the world’s population. The average rich world 【C20】______adds about 3. 2 tons of CO
2
yearly to the atmosphere, more than four times the level added by each Third World citizen.
【C15】
选项
A、shall
B、are
C、will
D、were
答案
D
解析
虚拟语气题。由于原句所述情形不可能发生,所以使用的是虚拟语气,[D]were是答案。
转载请注明原文地址:https://kaotiyun.com/show/uG1K777K
0
专业英语四级
相关试题推荐
Peoplewhobecomedeafor【C1】______ofhearinginadultlifehavedifferentproblems【C2】______peoplewhoareborndeaf.Theyh
Peoplewhobecomedeafor【C1】______ofhearinginadultlifehavedifferentproblems【C2】______peoplewhoareborndeaf.Theyh
AreviewofthetreatmentoffemalecharactersinChinesefictionrevealsthatChinesesocialattitudeshaveundergonedramatic
AreviewofthetreatmentoffemalecharactersinChinesefictionrevealsthatChinesesocialattitudeshaveundergonedramatic
AreviewofthetreatmentoffemalecharactersinChinesefictionrevealsthatChinesesocialattitudeshaveundergonedramatic
Theheadofthemuseumwas______andletusactuallyexaminetheancientmanuscripts.
Canelectricitycausecancer?Inasocietythatliterallyrunsonelectricpower,theveryideaseemspreposterous.Butformore
Thegreatestrecentsocialchangeshavebeen【C1】______thelivesofwomen.Duringthe20thcenturytherehasbeenaremarkable
Scientistssaythatmanyfactors______greatchangesintheweather.
Ascientificdiscoveryisoftenmade【C1】______beforesomeoneisabletoputittouse.【C2】______,scientistsdiscoveredhow
随机试题
国际自然环境的构成主要包括()
神经病毒侵害1~2个脊髓段,出现腓总神经麻痹后遗症时,临床上可见的畸形是
治疗硬肿阳气虚衰证首选方剂是
在年金时期内,每期年金额都在期末发生的年金,称为()。
“为充分保护投资者的利益,企业必须在有可供分配留存收益的情况下才进行收益分配”所体现的分配原则是()。
ABC会计师事务所接受甲集团公司委托审计其2017年度财务报表,并委派A注册会计师担任审计项目合伙人,确定甲集团公司合并财务报表整体重要性为500万元。甲集团公司共有乙公司、丙公司、丁公司和戊公司4家全资子公司。具体情况如下:资料一:(1)乙公司资产总
根据以下材料回答问题:①20世纪90年代人文学科研究的一大变化,就是学术成果平民化,许多老百姓关心的话题,也成为一些专家学者思考的课题。其中有一个课题具有永恒的价值,那就是怎样开发智力,让自己变得更聪明。②古希腊哲人明确宣告:“我们最爱
研究发现,大西洋、太平洋海面水温的微小变化与南美洲亚马逊热带雨林地区火灾的面积具有密切联系,将这种联系建立数学模型,可以用来预测亚马逊热带雨林地区来年的火灾情况。以下哪项如果为真,最能支持上述观点?
自信而不自负,迷恋而不迷惘。高调却着调,任性但率性。__________中寻求突破,循规蹈矩里探索新路。柴米油盐酱醋茶,喜怒哀乐自牵挂。万水千山,已入画卷;万丈豪情,归于澄净。我想,这正是今天大多数“80后”青年的真实生活状态。这样的生活状态,虽然____
Healways【C1】______earlytoenjoyatleasttwohoursofsolitudeinthehouseandgardenbeforethe【C2】______ofthefamilycame
最新回复
(
0
)