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 alre
With the world’s population estimated to grow from six to nine billion by 2050, researchers, businesses and governments are alre
admin
2012-02-18
49
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 have on everything from food and water to infrastructure (基础设施) and jobs. Underlying all this【S1】______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【S2】______. sustainable way is the cornerstone (基石) of our nation’s energy security, and will be one of the major【S3】______of the 21st century. Alternative forms of energy — bio-fuels, wind and solar, to name a few — are【S4】______being funded and developed, and will play a growing【S5】______in the world’s energy supply. But experts say that, even when【S6】______, alternative energy sources will likely meet only about 30% of the world’s energy needs by 2050.
For example, even with【S7】______investments, such as the $93 million for wind energy development【S8】______in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels【S9】______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 【S10】______— both traditional and alternative.
[A] stable [F] marvelous [K] comprise
[B] solutions [G] included [L] competitions
[C] significant [H] growth [M] combined
[D] role [I] exactly [N] challenges
[E] progress [J] consist [O] certainly
【S3】
选项
答案
N
解析
空前的one of和形容词major以及空后的of表明,本空应填一复数名词,[B]、[L]和[N]入选。结合语境,寻找资源以应对需求应该是一种挑战,故答案为[N]challenges"挑战”。[B]solutions"解决办法”和[L]competitions“比赛”均不符合此处语义。
转载请注明原文地址:https://kaotiyun.com/show/n7y7777K
0
大学英语四级
相关试题推荐
Ifyouwanttostayyoung,sitdownandhaveagoodthink.Thisistheresearch【C1】______ofateamofJapanesedoctors,whosay
Ifyouwanttostayyoung,sitdownandhaveagoodthink.Thisistheresearch【C1】______ofateamofJapanesedoctors,whosay
Abooklikethisisnevertheworkofasingleauthororevenasmallgroupofauthors;rathertherearemanypeopleandinstitu
PopulationViabilityAnalysisPartATomakepoliticaldecisionsabouttheextentandtypeofforestryinaregionitisimp
A、Gooutwithhiswife.B、Workforextrahours.C、Stayathomewithhiswife.D、Gooutwithhisboss.B信息明示题。女士提议周末出游,而男士却说老板要求
Departmentstoresarelargeretailstoressellingmanydifferentkindsofmerchandisearrangedin【B1】______departments.Suchsto
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohavebeenaboutfivemillion.Todayitisestimatedtha
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【C1】______aparen
A、Theyhaven’treachedadecisionyet.B、Theyhavedecidedtogohuntingbears.C、Theywanttogohuntingcamping.D、Theywant
随机试题
消隐;
与椎间盘脱出无关的是
A.可伴有失血性休克B.可有呕血、黑粪C.可有腹膜后积气D.早期常只有局限性腹膜炎E.可出现膈下游离气体脾破裂
真核生物mRNA的5′端具有真核生物mRNA的3′端具有
一般而言,在垄断的房地产市场,开发企业会倾向于使用减少供给从而获得垄断价格的手段来对消费者进行价格歧视,这将总体上造成社会福利的损失。()
在临时用地上建永久性建筑物,构筑物和其他设施,按规划法规定是()的。
下列选项中,正确的描述了潘家园旧货市场的是()
课外、校外教育对学生的影响很小,因此课外、校外教育活动可有可无。()
关系中能够唯一标识某个记录的字段称为【】字段。
Advertiserscanuse【B1】______media,ormeans,todelivertheirsalesmessages.The【B2】______mediaarenewspapers,magazines,
最新回复
(
0
)