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
2013-05-04
50
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
【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,因此该词与overlooked应该近义,故可得出答案为untapped。untapped fresh water指“未被开发的淡水”。
转载请注明原文地址:https://kaotiyun.com/show/ETB7777K
0
大学英语六级
相关试题推荐
Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsareformed.Itisnoteasytoexplainwhyoneperson
RecentlytheGallupOrganizationreleaseditsfindingsaboutpublicopiniononglobalwarming.It’snotgoodnewsforactivists,
A、Toreviseitandgetabetterdraft.B、Toeditittogetherwiththeman.C、Tomakeitpublishedinthejournals.D、Tohaveit
A、Theycannotaffordthewholecourse.B、Theywillhavetodothesameactivities.C、Theirparentswillwanttospendtimewith
A、Hekeepsintouchwithhisex-wifeafterdivorce.B、Hehasanothergirlfriendbesidesthewoman.C、Hecannotforgethisex-wif
A、Karenisveryforgetful.B、HeknowsKarenbetternow.C、Karenissuretopasstheinterview.D、SomethingiswrongwithKaren’s
Musicproducesprofoundandlastingchangesinthebrain.Schoolsshouldaddmusicclasses,notcutthem.Nearly20yearsago,a
CrowdsourcingaBetterWorldThecrowdsourcingconcept—collectingcontributionsfrommanyindividualstoachieveagoal—was
A、Itwasnotreallyamagazine.B、Itfeaturedavarietyofarticlesandstories.C、Itwaspraisedbyreadersofpoetry.D、Itwas
A、Anessay,B、AmagazinearticleC、Apoem.D、Ashortstory.DWhatmustthestudentsreadforWednesday?该题是就学生星期三的阅读作业提问。根据短文中的Y
随机试题
夏季某餐厅供应蛋炒饭引起近百人食物中毒,发病者潜伏期约8小时,以腹痛、腹泻为主要症状,体温正常,经16~36小时全部恢复。经卫生学调查发现蛋炒饭使用的是前一天的剩饭为预防这种食物中毒的发生,剩余食物食前须彻底加热,一般应为
根据《企业国有资产法》的规定,履行出资人职责的机构有权任免的人员是()。
在Word中,对于选中的文字能够实现“复制”功能的操作有( )。
下列房屋附属设备和配套设施,无论在会计核算中是否单独记账与核算,都应计入房产原值,计征房产税的有()。
运动符号办事的能力是()。
下列做法符合可持续发展战略的有()。
下面是有关DRAM和SRAM存储器芯片的叙述:I.DRAM芯片的集成度比SRAM高Ⅱ.DRAM芯片的成本比SRAM高Ⅲ.DRAM芯片的速度比SRAM快Ⅳ.DRAM芯片工作时需要刷新,SRAM芯片工作时不需要刷新通常情况下,错误的是()。
波表(wave table)就是波形表,下列有关它的叙述正确的是( )。
计算机的硬件系统主要包括:中央处理器(CPU)、存储器、输出设备和___________。
A、Shewasavolunteer.B、Shequittedherjob.C、Shehadapart-timejob.D、Shewasachurchgoer.A男士询问女士是否有做志愿者的经历,女士说有,那是十年前,她在
最新回复
(
0
)