首页
登录
职称英语
With the world’s population estimated to grow from six to nine billion by 20
With the world’s population estimated to grow from six to nine billion by 20
游客
2024-01-31
20
管理
问题
With the world’s population estimated to grow from six to nine billion by 2050, researchers, businesses and governments are already dealing with the impact this increase will have on everything from food and water to infrastructure (基础设施) and jobs. Underlying all this【C1】______ will be the demand for energy, which is expected to double over the next 40 years.
Finding the resources to meet this demand in a【C2】______ and sustainable way is the cornerstone (基石) of our nation’s energy security, and will be one of the major【C3】______ of the 21st century. Alternative forms of energy-bio-fuels, wind and solar, to name a few are【C4】______ being funded and developed, and will play a growing【C5】______ in the world’s energy supply. But experts say that even when【C6】______ , alternative energy sources will likely meet only about 30% of the world’s energy needs by 2050.
For example, even with【C7】______ investments, such as the $ 93 million for wind energy development【C8】______ in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels【C9】______ only about 1% of the market today.
Energy and sustainability experts say the answer to our future energy needs will likely come from a lot of【C10】______ both traditional and alternative.
A) stable I) exactly
B) solutions J) consist
C) significant K) comprise
D) role L) competitions
E) progress M) combined
F) marvelous N) challenges
G) included O) certainly H) growth [br] 【C4】
选项
答案
O
解析
分析该句的句子结构可以推断出空格处应为副词。备选项中exactly和certainly是副词,前者意为“恰好是,精确地”,后者意为“确实,当然”,该句是在强调一种事实,即风能和太阳能确实正在投资和开发中,故答案选certainly。
转载请注明原文地址:https://tihaiku.com/zcyy/3409564.html
相关试题推荐
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
InAmericaalone,tippingisnowa$16billion-a-yearindustry.Consumersac
InAmericaalone,tippingisnowa$16billion-a-yearindustry.Consumersac
InAmericaalone,tippingisnowa$16billion-a-yearindustry.Consumersac
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
随机试题
Barryhadanadvantageoverhismother______hecouldspeakFrench.A、sincethat
[originaltext]Monkeysaresmalllivelymammalsthatrankhighamongthemost
[originaltext]M:DidyouseethediamondringHenrygavetoMary?W:Isuredid.
"Opinion"isawordthatisusedcarelesslytoday.Itisusedtorefertoma
Newsagencyisalsocallednewsservice【B1】______,whichcollects,writes,a
关于回购市场,下列表述错误的是()。A.先购入证券、后出售证券称为为逆回购
以下哪项是生脉散的功用A.益气生津,敛阴止汗 B.益气养阴,通阳复脉 C
案例二 (一)资料 2019年3月,某审计组对乙公司2018年度财务
A. B. C. D.
预先不通过刊登公告程序,直接邀请一家或两家以上的供应商参加投标的政府采购方式指的
最新回复
(
0
)