首页
登录
职称英语
The concept of obtaining fresh water from icebergs that are towed to populat
The concept of obtaining fresh water from icebergs that are towed to populat
游客
2024-05-10
13
管理
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. Throe-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, palled 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.
The difficulty arises in other technical matters, such as the prevention of rapid melting in warmer climates and the funneling(传送) of fresh water to shore in great volume. But 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 F) resource K) similar
B) stretch G) outgrow L) source
C) deriving H) opposite M) ensured
D) entirely I) approximately N) sustain
E) untapped J) considered O) steer [br] 【C6】
选项
答案
B
解析
此处需要及物动词原形作谓语。词库中符合条件的动词有stretch,sustain 和 steer,而根据前面的so immense可知此句句意为“冰川的水量极大,足以维持地球上所有河流”,因此 sustain符合句意,为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3592731.html
相关试题推荐
Womenarehalfthepopulationbutonly15%ofboardmembersatbigAmerican
Womenarehalfthepopulationbutonly15%ofboardmembersatbigAmerican
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
随机试题
She’llgo______anythingherhusbandsaysjustforaquietandpeacefullife.A、a
Althoughthesefactorsarenotofprimeimportance,itismoredifficulttogeto
[audioFiles]audio_eusm_j97_001(20082)[/audioFiles]A、Sheisverybusywithsomet
TheartofpublicspeakingbeganinancientGreeceover【C1】______.Now,Twit
Onelunchtime,MayWardwasgoingroundthelocalsupermarketinParksideRo
年底与年中相比,网民规模增长最快的年份是()。A.2002年 B.20
A.硬膏剂B.巴布膏剂C.透皮贴片剂D.涂膜剂E.橡胶膏剂药物(含药材提取物)与
出售公有住房的,业主按照所拥有物业的建筑面积交存住宅专项维修资金,每平方米建筑面
互联网的迅猛发展,从根本上颠覆了许多传统行业,也创造了新的行业和机遇。21世纪初
甲公司是一家机床生产企业,成立于1995年。甲公司的主营业务为机床制造及其相关配
最新回复
(
0
)