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
With the world’ s population estimated to grow from six to nine billion by 2050, researchers, businesses and governments are alr
With the world’ s population estimated to grow from six to nine billion by 2050, researchers, businesses and governments are alr
admin
2019-03-08
27
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 and jobs. Underling all this【C6】______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【C7】______, sustainable way is the cornerstone of our nation’ s energy security, and will be one of the major【C8】______of the 21st century. Alternative forms of energy-bio-fuels, wind and solar, to name a few are【C9】______being funded and developed, and will play a growing【C10】______in the world’ s energy supply. But experts say that even when【C11】______, alternative energy sources will likely meet only about 30% of the world’ s energy needs by 2050.
For example, even with【C12】______investments, such as the $ 93 million for wind energy development【C13】______in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels【C14】______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【C15】______both traditional and alternative.
[A]consist[B]solutions[C]certainly
[D]stable[E]comprise[F]competitions
[G]exactly[H]growth[I]included
[J]role[K]progress[L]marvelous
[M]challenges[N]combined[O]significant
【C8】
选项
答案
M
解析
根据空格前的one of the major可推断出,空格处需填入名词的复数形式。上文提到能源需求不断增加,空格所在段段末谈及可替换能源或许只能满足世界能源需求的30%左右,由此可见,要找到充足的能源是一种“挑战”,因此M选项challenges符合文意,为正确答案。competitions多指人或机构为了某种利益而竞争,这里没有“抢夺能源”这种语境,故排除。
转载请注明原文地址:https://kaotiyun.com/show/toNd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Whatarethetwospeakerstalkingabout?
Whatarethetwospeakerstalkingabout?
Readthetextsfromabookinwhichfivepeopletalkedaboutclimate.Forquestions61to65,matchthenameofeachperson(61
Drunkendriving—sometimescalledAmerica’ssociallyacceptedformofmurder—asbecomeanationalepidemic.Everyhourofeveryd
Drunkendriving—sometimescalledAmerica’ssociallyacceptedformofmurder—asbecomeanationalepidemic.Everyhourofeveryd
Treesshouldonlybetrimmedwhenthereisagoodandclearreasonfordoingsoand,fortunately,thenumberofsuchreasonsis
Treesshouldonlybetrimmedwhenthereisagoodandclearreasonfordoingsoand,fortunately,thenumberofsuchreasonsis
AnincreaseinfreeparksinShanghaimightbepleasant,buttheybringwiththemtheirownproblems.Therearealready122free
Iwasparkedinfrontofthemallwipingoffmycar.Comingmywayfromacrosstheparkinglotwas【C1】______societywouldconsid
"Family"isofcourseanelasticword.Andindifferentcountriesithasdifferentmeanings.ButwhenBritishpeoplesaythatth
随机试题
室内给水管道工程施工程序中,管道及器具安装的紧后工序是()。
甲公司从事房地产开发经营业务,对出租的商品房、土地使用权和商铺均采用成本模式进行后续计量。2015年度发生的有关交易或事项如下:(1)1月1日,因商品房滞销,董事会决定将两栋商品房用于出租。1月20日,甲公司与乙公司签订租赁合同并已将两栋商品房以经营
纸张的()都会影响印刷品颜色的鲜艳程度。
家庭教育成功的前提是()。
把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项是:
从所给的四个选项中,选择最合适的一个填入问号处,使之符合已呈现的规律性:
教育实验的基本类型有哪些?
Windows环境下可以用来修改主机默认网关设置的命令是()。
Hebecameawarethathehadlosthisaudiencesincehehadnotbeenabletotalk______aroundonetopic.
Teachersintheprogrammusthavean(advance)______proficiencylevelinEnglish.
最新回复
(
0
)