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
Global warming may or may not be the great environmental crisis of the 21st century, but — regardless of whether it is or isn’t
Global warming may or may not be the great environmental crisis of the 21st century, but — regardless of whether it is or isn’t
admin
2013-06-17
29
问题
Global warming may or may not be the great environmental crisis of the 21st century, but — regardless of whether it is or isn’t — we won’t do much about it. We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these commitments seem, the less likely they are to be observed.
Al Gore calls global warming an "inconvenient truth," as if merely recognizing it could put us on a path to a solution. But the real truth is that we don’t know enough to relieve global warming, and — without major technological breakthroughs — we can’t do much about it.
From 2003 to 2050, the world’s population is projected to grow from 6.4 billon to 9.1 billion, a 42% increase. If energy use per person and technology remain the same, total energy use and greenhouse gas emissions (mainly, CO2 )will be 420/0 higher in 2050. But that’s too low, because societies that grow richer use more energy. We need economic growth unless we condemn the world’s poor to their present poverty and freeze everyone else’s living standards. With modest growth, energy use and greenhouse emissions more than double by 2050.
No government will adopt rigid restrictions on economic growth and personal freedom (limits on electricity usage, driving and travel) that might cut back global warming. Still, politicians want to show they’re "doing something." Consider the Kyoto Protocol(京都议定书). It allowed countries that joined to punish those that didn’t. But it hasn’t reduced GO2 emissions (up about 25% since 1990), and many signatories(签字国) didn’t adopt tough enough policies to hit their 2008 - 2012 targets.
The practical conclusion is that if global warming is a potential disaster, the only solution is new technology. Only an aggressive research and development program might find ways of breaking our dependence on fossil fuels or dealing with it.
The trouble with the global warming debate is that it has become a moral problem when it’s really an engineering one. The inconvenient truth is that if we don’t solve the engineering problem, we’re helpless.
选项
A、It may not prove an environmental crisis at all.
B、It is an issue requiring worldwide commitments.
C、Serious steps have been taken to avoid or stop it.
D、Very little will be done to bring it under control.
答案
D
解析
段落主旨题。开篇第一句为全段主题句:全球变暖也许会也许不会成为21世纪的重大环境危机,但不管实际情况怎样,我们都无法对此采取什么行动。故选D(第一段提到,人们在控制全球变暖方面将会做得很少)。
转载请注明原文地址:https://kaotiyun.com/show/UaM7777K
0
大学英语四级
相关试题推荐
Asubjectwhichseemstohavebeeninsufficientlystudiedbydoctorsandpsychologististheinfluenceofgeographyandclimate
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopedachecklistofstressfulevents.Theyappreciatedthe
Itiseasiertonegotiateinitialsalaryrequirementbecauseonceyouareinside,theorganizationalconstraints(约束)influence
Accordingtoasurvey,whichwasbasedontheresponsesofover188,000students,today’straditional-agecollegefreshmenare"
Peoplebecomequiteillogicalwhentheytrytodecidewhatcanbeeatenandwhatcannot.IfyoulivedintheMediterranean,for
Thereisapopularbeliefamongparentsthatschoolsarenolongerinterestedinspelling.Thisis,however,a【1】.NoschoolIh
Keepingafullsocialcalendarmayhelpprotectyoufromdementia(痴呆症),researcherssaidonMonday.【1】activepeoplewhowereno
Unlessmeasuresaretakenatonce,thereisapossibilitythatalltheoceansoftheworldwillbedeadbythenextcentury.How
Unlessmeasuresaretakenatonce,thereisapossibilitythatalltheoceansoftheworldwillbedeadbythenextcentury.How
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestudyofthesea".Beforethenineteenthcentury,s
随机试题
老张退休后被某事业单位聘请发挥余热,按有关规定,该单位必须与其订立具有人事关系性质的聘用合同。()
心动周期中,下面哪个时相的左心室内压力最高
医院感染的传播过程中,感染源、传播途径、易感者三个环节缺一不可,其中感染源可以是
甲状腺摄131Ⅰ测定前,应禁食的食物是
可影响小儿生长发育的药物是( )。会造成红细胞6-磷酸葡萄糖脱氢酶缺陷者溶血的药物是( )。
甲公司就一批棉花向乙公司发出要约,乙公司在甲公司确定的要约期限届满后方发出承诺通知,甲公司在接到后未予答复,则下列情况正确的是()。
教育具有自身的特点和规律,对政治经济制度和生产力有能动作用。这说明教育具有()。
①近日,股市遭遇连续暴跌的“雪灾”,“杀得”股民、基民________。转眼就到春节,正值用钱消费之际,许多投资者非但没能赚上一把,反倒亏了不少。②本次欧盟峰会清楚地表明,各成员国对目前的危机________,只好推迟做出决定,这种状况无助于提高欧盟国家
用Write和Prim语句向文件中写入多个数据的差别在于______。
下面对于友元函数描述正确的是()。
最新回复
(
0
)