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
2013-06-02
55
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. Threequarters 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, 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【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
B) stretch
C) deriving
D) entirely
E) untapped
F) resource
G) outgrow
H) opposite
I) approximately
J) considered
K) similar
L) source
M) ensured
N) sustain
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 分测为considered。
转载请注明原文地址:https://kaotiyun.com/show/qO67777K
0
大学英语六级
相关试题推荐
A、It’smadeupofprofessionalathletes.B、It’smadeupofcollegeplayers.C、It’smadeupofbothprofessionalandcollegeplay
A、Theyareleadinginthegame.B、Thescoreisreallyclose.C、TheDreamTeamiswaybehind.D、Theywinthegame.A信息明示题。文章第一段指出
A、Teotihuacan,oncethehomeof200,000people,wasthecenterofalargeempire.B、Manyarchaeologistsarefascinatedbytheru
A、It’sneartheMexicoCity.B、It’sinGuatemala.C、It’sstretchedfromtheplainsofcentralMexicotothemountainsofGuatema
A、Takingsmallstepsbitbybit.B、Havingagoodplan.C、Joiningatrainingclass.D、Learning30wordsperday.A事实细节题。Adams博士在对
A、Shebrokethemicrophone.B、Shewasinterruptedbyaphonecallduringherpresentation.C、Sheisplanningtogiveherpresent
Icebergsareamongnature’smostspectacularcreations,andyetmostpeoplehaveneverseenone.Avagueairofmystery【C1】_____
Icebergsareamongnature’smostspectacularcreations,andyetmostpeoplehaveneverseenone.Avagueairofmystery【C1】_____
Icebergsareamongnature’smostspectacularcreations,andyetmostpeoplehaveneverseenone.Avagueairofmystery【C1】_____
随机试题
按照商业活动的运作方式,电子商务可分为()。
患儿,男,5岁。因肾病综合征给予肾上腺皮质激素治疗5个月,出现水肿减轻,食欲增加,双下肢疼痛的症状,最应关注的药物副作用是
张某在供暖公司提供的供暖协议上签字接受供暖,供暖协议中约定日最少供暖时间18个小时,供暖时间中应包括日气温最低的4个小时,某日下午突然大风降温,14点到16点之间气温达到当闩最低温度,供暖公司在此期间没有供暖,张某的女儿被冻感冒,张某要求供暖公司承担违约责
零维水质模型的应用条件是()。
在日常生活中,我们经常把被子拿到户外太阳底下晒一下,其最可能的原因是()。
下列关于清末修律的表述,正确的是()。(2012年单选44)
Duringthetraditionalweddingceremony,the【C1】______couplepromiseeachotherlifelongdevotion.Yet,aboutoneoutoffourAm
SCSI是一种计算机系统的通用输入输出接口标准。SCSI接口常用来连接(41)设备,一条SCSI总线可连接多至(42)台SCSI设备。SCSI I的最大同步传输速率(43)MB/s。SCSI Ⅱ定义了2种提高速度的选择:Fast SCSI和Wide SCS
JazzJazzbeganintheearly20thcenturyasamusicof【1】______Americans.Thefirstjazzrecordwasmadein【1】______【
A、Openquestions.B、Multiplechoicequestions.C、Trueorfalsequestions.D、Generalquestions.B
最新回复
(
0
)