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
2021-03-28
65
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、By 1 degree.
B、By 2 degrees.
C、By 4 degrees.
D、By 5 degrees.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/QpWd777K
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
Whatisthesignificanceofthenewtechnology?WhichofthefollowingstatementsisNOTtrueastoLADI?
WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?
______placesanstressonsomethingthatcanhardlybelearntatschool?______tellsreadersitdoesn’tfollowthatthosewhod
Whichofthefollowingservicesisnotofferedbythefederalgovernment?IftheU.S.governmentraisesitstariffs,then______
Withthewidespreadcomputers,thereisanincreaseinthenumberofpeoplemakinguseofInternet.SomepeoplebelievethatInt
In1490orso,themainprogressmentionedinthispassagewas______.Siebe’sinventionwasnotaperfectone,because______.
What’sthebasicdifferencebetweenEnglishfootballandAmericanfootball?
ConfucianismhasitsgreatesteffectamongEuropeancountriesin______.Morethanonethousandyearsago,studentsweresentto
ThehistoryofresponsestotheworkoftheartistSandroBotticelli(1444-1510)suggeststhatwidespreadappreciationbycritic
What’sthemainobjectiveofastudentwhoattendsacertainnumberofcourses?
随机试题
A.宋内志贺菌B.痢疾志贺菌C.福氏志贺菌D.鲍氏志贺菌E.痢疾志贺菌和鲍氏志贺菌引起痢疾表现最轻的菌群是
梅毒性主动脉炎表现为
妊娠初期,恶心呕吐,呕吐痰涎,中医辨证为妊娠初期,恶心呕吐,呕吐清涎,中医辨证为
下列选项中,属于人民法院应当裁定终结执行情形的有()。
在我国,针对中小企业板块上市公司股本较小的共性特征,实行比主板市场更为严格的信息披露制度,其中包括( )。
用人单位招用劳动者,可以扣押劳动者的居民身份证件和其他证件,但不得要求劳动者提供担保。()
作为文化的重要组成部分,传统节庆的意义是______的。对于一个民族而言,______文化底色的优秀节日习俗,正如优秀的传统文化一样,足以凝神聚气、强基固本,反之则可能让社会群体失去向心力,沦为跟风一族。依次填入画横线部分最恰当的一项是()。
甲下班时,误将同事乙的电脑拿回家。晚上该电脑被丙偷走。以下说法中正确的是()
《花与美》杂志受A市花鸟协会委托,就A市评选市花一事对杂志读者群进行了民意调查,结果60%以上的读者将荷花选为市花,于是编辑部宣布,A市大部分市民赞成将荷花定为市花。以下哪项如果属实,最能削弱该编辑部的结论?
Whatattractscustomers?Obviouslythequalityofaproductdoes,butvisualimages【C1】______agreatdeal.Itisnotonlytheim
最新回复
(
0
)