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
2023-09-01
48
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【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 [br] 【C10】
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,故此处需要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:http://tihaiku.com/zcyy/2976469.html
相关试题推荐
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
Icebergsareamongnature’smostspectacularcreations,andyetmostpeople
随机试题
VirtuallyallplantandanimalspeciesonEarthcanbefoundintropicalrainfor
[originaltext]W:Dr.Thomas?ThisisKeetBradleyfromthedailynews.I’dlike
在中国,大熊猫是和平的象征。大熊猫是一种濒危物种。由于它们的栖息地遭到了破坏,它们的数量正在急剧下降(dwindle)。大熊猫的身体是白色的,在它的眼睛
WhichofthefollowingisNOToneoftheofficiallanguagesinNewZealand?A、Mao
FromTaiwantoAlgeria,thousandsofforeigners【S1】______toU.S.universitie
当建筑的外墙外保温系统规范的规定采用燃烧性能为B1、B2级的保温材料时,除(
诊断急性肾炎最有意义的临床表现为A.中等量以上的蛋白尿 B.水肿 C.尿比重
下列关于清创的原则中,的是A.清除伤口内异物和切除失去活力的组织 B.彻底止血
男女生长曲线的两次交叉现象的特征不包括( )。A.在9~10岁前男孩平均身高高
自身免疫病最重要的基本特征是A.病情转归与自身免疫反应强度有关 B.有遗传倾向
最新回复
(
0
)