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
8
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] 【C5】
选项
答案
D
解析
分析该句的句子结构可以推断出空格处应为名词单数。备选项中的role经常与play搭配,构成固定词组play a role in,意为“在……发挥作用”,此处role的意思是“作用”。
转载请注明原文地址:https://tihaiku.com/zcyy/3409565.html
相关试题推荐
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
KeepOurSeasCleanA)Bytheyear2050itisestimatedthattheworld’s
InAmericaalone,tippingisnowa$16billion-a-yearindustry.Consumersac
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
随机试题
Onthefirstdayofschooloneofmyclassmatesbeganatalkwithmethatch
()稀奇古怪的实验()美术[br]()规律重复()音乐、舞蹈和建
物料提升机进料门口的开启高度不应小于1.8m,强度应符合规定,进料口门应装有电气
A.火 B.湿 C.寒 D.燥 E.风具有"粘滞"特点的是
下列药物引起的惊厥,可用地龙灌胃给药来对抗的是A:戊四氮B:士的宁C:印防己
Foresterstaredathiscar,tremblingwit
某儿童福利机构在社会工作者提议下设置了收容弃婴的“安全岛”。一年来,在“安全岛”
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
制造产品所耗用的直接材料费用,应记入的会计账户为()。A:生产成本—基本生产成本
E建筑工程公司原有从业人员650人,为减员增效,2009年3月将从业人员裁减到3
最新回复
(
0
)