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
2023-08-30
21
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
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 flesh water指“未被开发的淡水”。
转载请注明原文地址:https://tihaiku.com/zcyy/2970190.html
相关试题推荐
Theproblemofpopulationismainlyman-made.[br]EveryCanadianuses______acr
Theproblemofpopulationismainlyman-made.[br]Now,forhumanbeings,eighty
Theproblemofpopulationismainlyman-made.[br]Theenormousincreaseinpopu
Theproblemofpopulationismainlyman-made.[br]By"DeathControl",theautho
Theproblemofpopulationismainlyman-made.[br]Itisveryimportanttheactu
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
随机试题
100mphgalescausechaos【76】Strongwinds,whichat
()中圈()罚点球[br]()中卫()手触球H,O
ABestFriend?YouMustBeKidding![A]Fromthetimetheymeti
Asusual,thecorrespondentisrequiredto__________(在写报道前核对所有的事实).checkupa
下列选项中,符合所给图形的变化规律的是( )。
A.血行转移 B.淋巴转移 C.直接蔓延 D.上行转移 E.种植转移肝癌
“同病异治”的“同病”是指A.病因相同 B.病种相同 C.病证相同
SF6气体密度继电器校验用标准器的允许误差绝对值应不大于被检密度继电器允许误差绝
按照《教师法》的规定,对侮辱、殴打教师的,根据不同情节,应该采取的措施不包括()
(2018年真题)根据《公路工程技术标准》,下列公路隧道中,属于长隧道的是(
最新回复
(
0
)