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
What can be said about the report by the National Academy of Sciences?
What can be said about the report by the National Academy of Sciences?
admin
2019-08-17
77
问题
What can be said about the report by the National Academy of Sciences?
W: Mr. Welch, do you think there is any doubt now that global warming exists?
M: Let me put it this way. A few determined skeptics don’t accept it, but the over-whelming majority of scientists do. The report the National Academy of Sciences issued was very balanced. They noticed some uncertainties , for example, when and where impacts might be felt and to what degree. But the conclusion was that the earth is warming. This change is induced by human activity and it will get worse.
W: Do a few degrees of warming really matter?
M: The earth is warmed by 1 degree Fahrenheit in the last 100 years, more in some places, like the Arctic, where there has been an increase of 4 to 5 degrees since the 1950s. Polar bears are having a terrible time there and may be extinct by the end of this century. Already, we are seeing changes in Alaska, where roads are buckling in places and some major pipelines no longer fit together. Cold water fish that used to be found off the Alaskan Coast are no longer there.
W: Can a new energy policy help?
M: Energy policy is climate policy since fossil fuels are the main sources of green-house gases, so the question becomes: Where do we get our energy? In the United States, 51% of electricity comes from coal, 20% nuclear, 16.5% natural gas, 7% hydroelectric, 3% oil and the rest, renewables, geothermal, wind, and solar.
W: How much power can we realistically expect to derive from renewable sources?
M: 10% by 2020 is realistic or with a considered effort, 30% by 2050. Without major breakthroughs, it’s hard to get beyond a third, because most renewables are intermittent. You need better ways of storing the energy.
选项
A、Lack of advanced storing technology.
B、A need for joint efforts of scientists.
C、A shortage of practical support from the public.
D、An unreliable market demand.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/tAWd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
Asinternationalcommercegrows,thereisanamazingdevelopmentwhichisexpandingatever-increasingrate—businessontheInte
Youhavereadanarticleinamagazinewhichstates,"Peopleshouldneverbesatisfiedwiththeexistingstateofaffairs.They
Withwhichofthefollowingsubjectsisthepassagemainlyconcerned?Theauthormentionsallofthefollowingaseffectsofma
WhousuallytakecareoftheelderlypeopleintheUnitedStates?
Writeacompositionexplainingthefollowingfigure.Youshouldwritenolessthan250words.
TherecentsocialandeconomicchangesintheU.S.havegreatimpactonalltheAmericanhousingsystem.
______tellsusthatthegovernmentwillgivesupporttoemployers,whoofferpart-timejobs?______statesthatjob-sharingcan
Answerquestionsbyreferringtothecommentsontheeconomyofthreedifferentcountries/regioninthefollowingmagazineartic
AnotherearlyNativeAmericantribein(31)isnowthesouthwesternpartoftheUnitedStateswastheAnasazi.ByA.D.800theA
AnotherearlyNativeAmericantribein(31)isnowthesouthwesternpartoftheUnitedStateswastheAnasazi.ByA.D.800theA
随机试题
治疗因肾虚所致经行泄泻的最佳方剂是
A.疝内容物易回纳入腹腔B.疝内容物不能完全回纳入腹腔C.疝内容物有动脉性血循环障碍D.疝内容物被疝环卡住不能还纳,但无动脉性循环障碍E.疝内容为部分肠壁难复性疝为
按成槽方式对地下连续墙进行分类,不包括( )。
因海关关员的责任造成被查验货物损坏的,进出口货物收发货人或其代理人可以要求海关赔偿。但海关将不予赔偿的情况是:()。
下列不属于我国各级财政部门的预算职权的是()。
(2017年改)某企业为增值税一般纳税人,适用的增值税税率为13%。2019年12月1日,该企业“原材料——甲材料”科目期初结存数量为2000千克,单位成本为15元,未计提存货跌价准备。12月份发生有关甲材料收发业务或事项如下:(1)10日,购入甲材料
2018年9月11日,国家主席习近平在符拉迪沃斯托克和俄罗斯总统普京共同出席中俄地方领导人对话会。习近平主席就未来两国地方合作提出多点建议,主要包括()。①发挥国家引领作用.加强统筹协调②创新合作思路,拓展合作地域③深挖互补优势,突出地方特色
管弦乐《台湾舞曲》是我国作曲家聂耳的代表作。
A.Iwanttocheckin.B.Youmayboardnow.C.I’mafraidyourbagisfourkilosoverweight,A:IsthistherightcounterforCA
SuggestopediaI.IntroductionA.DerivedfromsuggestionandpedagogyB.Acceleratingthelearningspeedtoabout【T1】ofthecon
最新回复
(
0
)