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
39
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
【C6】
选项
答案
B
解析
此处需要动词原形与over构成搭配,作定语从句的谓语,表明huge glaciers“分布”在浅大陆架上。词库中的动词原形有stretch和steer,但steer不能与over连用,而stretch在意义和用法上都符合题意,故选stretch。
转载请注明原文地址:https://kaotiyun.com/show/iw97777K
0
大学英语六级
相关试题推荐
WhenIwasatschool,my【B1】______wastobeapilotintheairforce.Butmyeyesightwasn’tgoodenough.SoIhadtogiveuptha
A、Farmersshoulduselessinsecticide:B、Farmersshoulduseacombinationoftwoorthreeinsecticidesatonce.C、Farmersshould
A、Aresponsibleandindependentperson.B、Adynamicanddiligentperson.C、Onewithinitiativeandalotofexperience.D、Aman
Womenarequiteoftencompetentdrivers,buttheyareveryseldomconsistentlyfirstclass.Atbesttheyareamildhazard,at【C
Itisoftenclaimedthatnuclearenergyissomethingwecannotdowithout.Weliveinaconsumersocietywherethereisanenorm
Thehousesinthisresidentialarea__________(价格在30万至50万美元之间).
ProperstreetbehaviorintheUnitedStatesrequiresanicebalanceofattentionandinattention.Youaresupposedtolookata【
MuslimSudanisoneoftheIslamized【B1】______regions.InEastAfricamusicalformsshowingAraborIslamicinfluencearefoun
A、Sheisworriedaboutthesafetyinthosecountries.B、Sheisalittleworriedaboutherhealth.C、Sheisafraidshewillspend
Everyonewouldhaveheardthefamousphrase"Angerisonesortofdanger".Itisanage-oldsaying,butitistestedandstillh
随机试题
驾驶机动车在这个路口允许掉头。
合成蛋白质后才由前体转变而成的氨基酸是
A、拉贝洛尔B、普萘洛尔C、阿替洛尔D、酚妥拉明E、哌唑嗪选择性阻断β1受体的药物是
根据文景时期肉刑改革的内容,文帝时期最后确定取代斩右趾的刑罚是()。
依据《建设项目环境保护管理条例》,建设单位若未按规定申请建设项目竣工环境保护验收或延期验收,依照相关规定对其采取的处罚可以有()。
()表示不动产需求量变动对不动产价格变动的反应程度。
下列措施中,能够降低企业销售物流运输成本的是()。
某公司生产和销售A产品,6月份现金收支的预计资料如下:(1)6月1日的现金余额为520000元。(2)产品售价117元/件,4月份销售11400件,5月份销售12600件,6月预计销售18500件,7月预计销售20000件。根据经验,商品售出后当月可收回货
男,51岁。因运动障碍到医院就诊,经多项检查,发现第四脑室附近肿瘤压迫小脑绒球小结叶,下列运动障碍最明显的是
课程
最新回复
(
0
)