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题型:完形填空 难度:0.65 引用次数:119 题号:13556688

This one Antarcticl glacier(冰川) is the size of the UK and is already _________ for five percent of world sea level rise. And the rate the Thwaites Glacier is melting has _________   five times in the last 30 years.

Last year, a team of British and American scientists _________ camp on the glacier. It is one of the most _________ places on Earth. By measuring the gravitational(重力) pull of the seabed under the ice, they discovered a network of deep channels, a _________ step in understanding why the glacier is changing so rapidly.

This is what they _________ is happening. A series of huge channels-some almost a kilometre _________ the ice-allow the warmer, deep ocean water to flow up to the front of the glacier, _________ it increasingly rapidly.

Another team of scientists worked from an icebreaker ship at the front of the glacier. Exceptional sea ice break-up last year, meant they could _________ over 2,000 square kilometres of the sea floor in front of the Thwaites ice shelf.

It's so important to understand what's going on in Antarctica today, __________ these big glaciers like Thwaites, because they are changing really quickly as the climate warms and as they melt, they are __________ more and more water to our global oceans, which is increasing the __________ of sea water.

There is up to three and a half metres of sea level rise locked up in the ice here in West Antarctica. That's enough to __________ the map of the Earth, __________ many of the world's greatest cities.     

Understanding why this remote area is changing and how quickly it will do so, is __________ if the world is to prepare for the rising waters to come.

1.
A.responsibleB.readyC.famousD.suitable
2.
A.developedB.stoppedC.addedD.risen
3.
A.set offB.set upC.set outD.set in
4.
A.beautifulB.reasonableC.remoteD.popular
5.
A.plainB.keyC.complexD.specific
6.
A.thinkB.hopeC.forgetD.prefer
7.
A.aboveB.uponC.beyondD.below
8.
A.meltingB.freezingC.coveringD.moving
9.
A.protectB.studyC.shakeD.design
10.
A.finallyB.surprisinglyC.fortunatelyD.especially
11.
A.forbiddingB.boilingC.feedingD.applying
12.
A.widthB.timeC.temperatureD.level
13.
A.reshapeB.reviewC.recoverD.repeat
14.
A.cleaningB.floodingC.surroundingD.balancing
15.
A.difficultB.commonC.beneficialD.impossible
【知识点】 说明文 自然科学

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1.
A.wonderedB.agreedC.believedD.described
2.
A.acceptableB.visibleC.responsibleD.possible
3.
A.reasonsB.problemsC.detailsD.results
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A.In returnB.In contrastC.In the meantimeD.In other words
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A.darkerB.largerC.smallerD.greener
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A.seek outB.pass byC.agree onD.meet with
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A.catchB.comprehendC.ignoreD.misuse
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A.scientistsB.farmersC.professorsD.leaders
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A.beginningB.separationC.recoveryD.removal
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A.luckilyB.naturallyC.exactlyD.occasionally
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A.evenB.yetC.neverD.still
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A.technologiesB.theoriesC.discoveriesD.efforts
16.
A.releaseB.preferC.allowD.enjoy
17.
A.famousB.youngC.popularD.modern
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A.shelfB.treeC.windowD.ice
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A.freezingB.warmC.coolD.shallow
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A.enteredB.returnedC.diedD.left
10.
A.boringB.frighteningC.puzzlingD.touching
11.
A.directorsB.audienceC.teenagersD.authors
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A.rightB.spaceC.moneyD.power
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A.studiesB.refusesC.experiencesD.questions
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A.modelsB.imagesC.valuesD.holes
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A.meaningfulB.longC.difficultD.enjoyable
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A.brightnessB.honorC.kindnessD.interest
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A.thereforeB.otherwiseC.moreoverD.however
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A.achieveB.describeC.changeD.remember
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