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
69
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
【C1】
选项
答案
J
解析
此处需要填入动词的过去分词与is being一起构成句子谓语。本句开头的But now表明该句与上文的…was once treated as...形成对比关系,因此该句的谓语意思与treat“认为”相近。由此可知词库中符合条件的过去分词为considered。
转载请注明原文地址:https://kaotiyun.com/show/BTB7777K
0
大学英语六级
相关试题推荐
A、Consumersbegantoresistbuyingproductsoftheseads.B、Consumersstoppedtheirenvironmentalmovement.C、Consumersturnedc
Scientistshavedevelopedacomputerisedmind-readingtechniquewhichletsthemaccuratelypredicttheimagesthatpeoplearelo
Althoughthestigma(污名)onceassociatedwithmentalillnesshasrecededinrecentyears,mostofthe12millionAmericanswhoh
A、He’llfinishwritinghispresentationtomorrow.B、He’snervousbuthebelieveshe’llbebettertomorrow.C、He’snervousabout
Businessandgovernmentleadersconsidertheinflationratetobeanimportantindicator.Inflationisaperiodofincreased【C1】
A、It’stoolateforthemantofindatutor.B、Shehasn’tpreparedforthemidtermexameither.C、Themanshouldn’thirethesam
CrowdsourcingaBetterWorldThecrowdsourcingconcept—collectingcontributionsfrommanyindividualstoachieveagoal—was
Atsometimeinyourlife,youmayhaveastrongdesiretodosomethingstrangeorterrible.However,chancesarethatyoudon’t
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
A、GrowthofviolenceonTV.B、Destructivethreatfromnuclearexplosives.C、Degradingmoralstandards.D、Alloftheabove.C
随机试题
A、Wheredryandhumidairmassesmeet.B、Whenthunderstormsortornadoesoccur.C、Wheretheairbecomeswarmandhumid.D、Whent
“我群”也称作【】
避雷带采用圆钢敷设时,明敷直径不小于8mm,暗敷直径不小于10mm。()
“小金库”核算,属于私设会计账簿的行为。()
在下列因素中,不影响错报风险的是()。
下列关于人乳和牛乳中矿物质的比较,正确的是()。
如图,⊙O的直径AB=10,C是AB上一点,矩形ACND交⊙O于M,N两点,若DN=8,则AD的值为()。
A、 B、 C、 D、 D(15-10)×(9-3)=30,(20-11)×(7-3)=36,(25-12)×(5-3)=26。
【B1】【B11】
Thereweremorepeopleonthetrainthanheexpected.He______expectthatthereweresomanypeopleonthetrain.
最新回复
(
0
)