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
2024-05-06
38
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 (47)______ quite seriously by many nations, especially since scientists have warned that the human race will (48)______ its fresh water supply faster than it runs out of food.
Glaciers are a possible (49)______ 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 (50)______ fresh water so immense that it could (51)______ 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 (52)______ 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 (53)______ 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 (54)______ 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 (55)______ 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 (56)______ salt from water.
Word Bank:
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
[br]
选项
答案
A
解析
空白前面的or表明其后的成分用于解释desalinization,由于介词by的限定,故此处需填入动词的现在分词,且能与from连用。词库中的removing和deriving都能与from连用,但根据desalinization来判断,要把盐从水中分离出来,所以选择removing(除去),而不是deriving(源自)。
转载请注明原文地址:https://tihaiku.com/zcyy/3586460.html
相关试题推荐
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopula
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopula
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopula
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopula
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopula
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopula
随机试题
Fewpeopleexpectluxurywhileflying,butthesedays,eventhebasicsseem
[originaltext]M:Goodmorning.Doctor.W:Goodmorning,Mr.White.WhatcanId
气体灭火系统按照装配形式不同,可分为()A.管网灭火系统 B.预制灭火系统
若迈克耳逊干涉仪的反射镜M2平移距离为0.3220mm时,测得某单色光的干涉条纹
密级配沥青混凝土混合料马歇尔试验,可以采用()指标评价其耐久性。A.空隙率
凝血因子中不是蛋白质的是A.Ⅲ B.Ⅳ C.Ⅶ D.PK E.HMWK
从2018年11月5日到10日,中国国际进口博览会在上海召开。这是中国第一次举办
在突触传递过程中,引起递质释放的关键因素是A.兴奋传到神经末梢 B.突触前膜发
(2020年真题)下列关于中国特色社会主义法律体系特征的表述正确的是?A.体现中
对某一土样,在一定的击实功能作用下,只有()。A.当水的含量为最小含水量时,土
最新回复
(
0
)