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
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once trea
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once trea
admin
2013-09-07
42
问题
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being【C1】______quite seriously by many nations, especially since scientists have warned that the human race will【C2】______its fresh water supply faster than it runs out of food.
Glaciers are a possible【C3】______of fresh water that has been overlooked until recently. Three-quarters of the Earth’s fresh water supply is still tied up in glacial ice, a reservoir of【C4】______fresh water so immense that it could【C5】______all the rivers of the world for 1,000 years. Floating on the oceans every year are 7,659 trillion metric tons of ice encased in 10,000 icebergs that break away from the polar ice caps, more than ninety percent of them from Antarctica.
Huge glaciers that【C6】______over the shallow continental shelf give birth to icebergs throughout the year. Icebergs are not like sea ice, which is formed when the sea itself freezes, rather, they are formed【C7】______on land, breaking off when glaciers spread over the sea. As they drift away from the polar region, icebergs sometimes move mysteriously in a direction【C8】______to the wind, pulled by subsurface currents. Because they melt more slowly than smaller pieces of ice, icebergs have been known to drift as far north as 35 degrees south of the equator in the Atlantic Ocean. To control them and【C9】______them to parts of the world where they are needed would not be too difficult. Even if the icebergs lost half of their volume in towing, the water they could provide would be far cheaper than that produced by desalinization(脱盐), or【C10】______salt from water.
A)removing I)approximately
B)stretch J)considered
C)deriving K)similar
D)entirely L)source
E)untapped M)ensured
F)resource N)sustain
G)outgrow O)steer
H)opposite
【C4】
选项
答案
E
解析
此处需要形容词或分词修饰fresh water。上一句讲到冰川一直has been overlooked until recently,由此可知冰川中的淡水一直未被开发,untapped“未开发的”符合语境。untapped fresh water指“未被开发的淡水”。
转载请注明原文地址:https://kaotiyun.com/show/4w97777K
0
大学英语六级
相关试题推荐
SmugglerstrytobringillegalitemsintotheUnitedStateseveryday.Peoplewhotraveltoforeigncountriessometimestrytoa
A、Ashippingcompany.B、Aconsultingcompany.C、Anaccountingcompany.D、Aheadhuntingcompany.B对话中女士针对男士的简历给了很多建议,可见女士是在一家咨询公司
Peopleinsunny,outdoorsystates—Louisiana,Hawaii,Florida—saytheyarethehappiestAmericans,andresearchersthinktheykno
CrimewithoutBordersAsgangsgrowincreasinglyglobalized,organizedcrimeisbecomingaproblemhinderinginternat
MuslimSudanisoneoftheIslamized【B1】______regions.InEastAfricamusicalformsshowingAraborIslamicinfluencearefoun
MuslimSudanisoneoftheIslamized【B1】______regions.InEastAfricamusicalformsshowingAraborIslamicinfluencearefoun
Todaytheworld’seconomyisgoingthroughtwogreatchanges,bothbiggerthananAsianfinancialcrisishereoraEuropeanmone
A、Hawaiiiscoolernow.B、ThevegetableshavebecomeaccustomedtotheweatherinHawaii.C、Theyarecheatedtobelievethatthe
Theauthorofthereport_______________________(对医院的问题非常了解)becausehehasbeenworkingthereformanyyears.
SuggestionsforYourWorkAnnieisalongtimesecretary/receptionistfortwoseniorvicepresidentsatabigcompany.They
随机试题
质柔韧,断面黄白色或淡黄棕色,皮部厚,有裂隙及多数棕色点状分泌腔,有浓郁的香气,味甘、辛、微苦的药材是()。
只有纤芯的折射率___________包层的折射率,才能使光信号在传输过程中形成全反射。()
医学史上第一次卫生革命的标志是
腹部反跳痛发生的病理机制是
纯母乳喂养多长时间最好
生态环境影响评价采用的指标有()。
关于建设工程施工合同索赔,下列说法中正确的是()。【2015年真题】
下列货物中,不可以免关税的是()。
儿童生长发育最迅速的阶段是从出生29天到1周岁,这个时期被称为()。
Theliberalviewofdemocraticcitizenshipthatdevelopedinthe17thand18thcenturieswasfundamentallydifferentfromthato
最新回复
(
0
)