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
2024-05-10
35
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] 【C7】
选项
答案
D
解析
本句的结构完整,因此需要副词成分。空格前的插入成分rather表明这个副词的程度与上一句的not like相关,对比词库中的副词,可知entirely符合句意,表明冰山与海冰不同,它们“完全”是在陆地上形成的。词库中的另一个副词approximately常用于形容大概的数字、数量或时间。
转载请注明原文地址:http://tihaiku.com/zcyy/3592732.html
相关试题推荐
Womenarehalfthepopulationbutonly15%ofboardmembersatbigAmerican
Womenarehalfthepopulationbutonly15%ofboardmembersatbigAmerican
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
The2000decennialcensusaimsatobtainingtheexactnumberofpopulationaswe
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
随机试题
[originaltext]M:ShouldIgetthatpairofrunningshoesforKaren’sbirthday?
(一)导入新课 故事导入。据说,歌德在公园散步,遇见了一个傲慢的批评家,双方在一条仅能容一人通过的小路里僵持着,批评家说:“我从不给蠢货让路。”面对这样的情况
中唐古文运动的倡导者是()A.刘禹锡 B.韩愈 C.李贺 D.孟郊
教师通过语言向学生系统传授知识的教学方法是()。A.讲授法 B.讨论法 C
患者,男,54岁,建筑工人,在施工过程中突然发生一阵呕血,被送往某医院。入院体检
当产妇出现先兆子宫破裂时,应遵医嘱立即注射A.硫酸镁 B.缩宫素 C.哌替啶
王先生,64岁。诊断为食管癌,拟全麻下行食管癌根治术,下列关于术前胃肠道准备哪项
2015年,我国规模以上电子信息产业企业个数6.08万家,其中电子信息制造企业1
在关于研发与推广转基因水稻的争论中,有专家指出,虽然人类对于转基因的研究有所进展
安全生产监督管理部门依法对生产经营单位进行职业卫生监督。下列说法中,错误的是()
最新回复
(
0
)