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
28
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、It is presented in an authoritative tone.
B、It is based on an objective analysis.
C、It provides an unbiased view on global wanning.
D、It contains provocative remarks to skeptics.
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/VAWd777K
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
Withwhichofthefollowingsubjectsisthepassagemainlyconcerned?Theauthormentionsallofthefollowingaseffectsofma
WhousuallytakecareoftheelderlypeopleintheUnitedStates?
Nopeopledoubtthefundamentalimportanceofmothersinchildrearing,butwhatdofathersdo?Muchofwhattheycontributeiss
Perhaps(31)arefarmorewivesthatIimaginewhotakeitfor(32)thathouseworkisneithersatisfyingnorevenimportantonce
Perhaps(31)arefarmorewivesthatIimaginewhotakeitfor(32)thathouseworkisneithersatisfyingnorevenimportantonce
Researchersinbehavioralpsychologyaredividedwithregardto______.Byreferringtotheartificialgrammar,theauthorinte
AnswerQuestionsbyreferringtothefollowinggames.Whichgame...ALikeyourmotorcyclegamesbig,bold,andbeautifu
AnotherearlyNativeAmericantribein(31)isnowthesouthwesternpartoftheUnitedStateswastheAnasazi.ByA.D.800theA
Answerquestionsbyreferringtotheradioreportsonsavingenergy.Note:Whenmorethanoneanswerisrequired,thesemay
随机试题
CAN数据传输系统部件有哪些功能?
小儿生长发育最快的时期是
小儿肺炎合并重症心力衰竭,急救时应选用
王某,男性,35岁,全身大面积烧伤,仅余面部、颈部和前胸的7处巴掌大的面积未烧伤,则其烧伤面积为()。
如果主要分析产品价格波动对方案超额净收益的影响,可选用( )。
资产组合的信用风险通常应()单个资产信用风险的加总。
稷下学宫
密码学的起源可能要追溯到人类刚刚出现,并且尝试去学习如何通信的时候。他们不得不去寻找方法确保他们的通信机密。但是最先有意识的使用一些技术的方法来加密信息的可能是公元六年前的古希腊人。他们使用的是一根叫scytale的棍子。送信人先绕棍子卷一张纸条,然后把要
ArtistGeorgeSheffieldwasrecentlyfeaturedinadaringpostmodernart______attheWilkesMuseum.
A、Tokeeptheghostshappy.B、Toavoidbeingrecognizedbyghosts.C、Toletthespiritsroamamongtheliving.D、Toformtheiro
最新回复
(
0
)