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题型:完形填空 难度:0.65 引用次数:69 题号:21621430

There are countless reasons to stay up late; however, here’s one good reason to go to bed.

The less a student sleeps every night, the lower their grade-point average (GPA) will be, according to a two-year study of the sleep habits of more than 600 students.

Researchers found that every lost hour of average nightly sleep at the start of an academic term was associated with a 0.07-point ________ in a student’s end-of-term GPA. When a student slept less than six hours a night, the ________ of lost sleep on a student’s grades was even more ________, said David Creswell, the lead author of the study.

“You’re ________ this sleep debt,” Creswell said. “And that has a pretty negative role ________ people’s academics.” Sleep, especially uninterrupted sleep, helps the brain ________ and memorize information it has learned. And when someone is sleep-deprived, attention span and memory are also damaged.

But students face a variety of “________ pressure” that keep them up late, Creswell said. The average student in the sample group ________ fell asleep at about 12:00 p.m. and these students slept about 6 hours a night.

It’s not clear why less sleep would cause someone to have a lower GPA, Creswell said. Sleeping for longer, ________ periods of time allows for REM sleep, a period of unconscious rapid eye movement that corresponds with high activity in the brain. Creswell said he ________ that a regular pattern of ________ sleep creates a “sleep debt” over time, leaving students unable to concentrate. “These students are going to attend their class with a ton of sleep debt, and they’re having trouble staying focused and ________ in classrooms,” Creswell said. “Those things can really harm your ability to really ________ with the material. What’s more, sleep is so important that it is like the ________ that holds students’ lives together in lots of aspects.”

“Fundamentally, it ________: If we’re not sleeping well, all systems are not a go,” Creswell said. “Our body is not prepared for the day ahead of us and what we’re asking it to do if we don’t have that good, basic amounts of night-time sleep.”

1.
A.dropB.additionC.riseD.consistency
2.
A.efficiencyB.effectC.causeD.advantage
3.
A.primitiveB.variousC.distinctD.contrary
4.
A.demonstratingB.accusingC.relievingD.accumulating
5.
A.in a state ofB.in association withC.in terms ofD.in line with
6.
A.prohibitB.processC.produceD.privilege
7.
A.competingB.comprehendingC.complicatingD.comparing
8.
A.typicallyB.brieflyC.violentlyD.subsequently
9.
A.uninterruptedB.unconstrainedC.undeterminedD.unemployed
10.
A.sustainsB.suspendsC.suspectsD.shifts
11.
A.improperB.adequateC.extraordinaryD.insufficient
12.
A.buildingB.returningC.learningD.emerging
13.
A.engageB.elevateC.evolveD.evaluate
14.
A.glanceB.gestureC.gradeD.glue
15.
A.comes up toB.comes down toC.goes in forD.gets down to
【知识点】 科普知识 说明文

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1.
A.fearB.driveC.competitionD.concentration
2.
A.ruleB.habitC.challengeD.progress
3.
A.attentionB.effortC.interestD.time
4.
A.confusingB.behavingC.punishingD.hurting
5.
A.get upB.give upC.show upD.shut up
6.
A.afraidB.ashamedC.confidentD.hopeful
7.
A.understoodB.rememberedC.curiousD.smart
8.
A.seizeB.ruinC.refuseD.require
9.
A.lessonB.choiceC.giftD.game
10.
A.challengingB.interestingC.newD.simple
11.
A.decisionsB.jigsawsC.mistakesD.predictions
12.
A.strangeB.promisingC.profitableD.difficult
13.
A.repeatedlyB.unwillinglyC.automaticallyD.obviously
14.
A.secretsB.thoughtsC.preferencesD.weaknesses
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A.theoristsB.perfectionistsC.non-learnersD.risk-takers
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1.
A.soB.butC.thoughD.unless
2.
A.playB.liveC.eatD.compete
3.
A.complexB.simpleC.importantD.normal
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A.collectB.promoteC.wasteD.find
6.
A.difficultB.smoothC.lostD.worthy
7.
A.BesidesB.InsteadC.OtherwiseD.Therefore
8.
A.mysteryB.strengthC.safetyD.patience
9.
A.againB.apartC.aloneD.abroad
10.
A.SociallyB.RelativelyC.PersonallyD.Roughly
11.
A.countlessB.limitedC.funnyD.actual
12.
A.hideB.benefitC.wakeD.separate
13.
A.acceptedB.appreciatedC.producedD.considered
14.
A.passesB.appliesC.endsD.lies
15.
A.publicB.officialC.specialD.affordable
16.
A.in spite ofB.in memory ofC.in addition toD.in exchange for
17.
A.costB.speedC.chanceD.profit
18.
A.truthB.realityC.principleD.purpose
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A.luckierB.quickerC.cheaperD.firmer
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A.worksB.triesC.suffersD.changes
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1.
A.papersB.coversC.headlinesD.pages
2.
A.widelyB.popularlyC.especiallyD.completely
3.
A.shyB.fondC.consciousD.confident
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A.failedB.ignoredC.facedD.conducted
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A.observeB.discoverC.recognizeD.understand
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A.believe inB.find outC.pick outD.take in
7.
A.senseB.questionC.opinionD.thought
8.
A.forB.withC.inD.before
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A.howB.whenC.whyD.whether
10.
A.touchableB.seeableC.sensibleD.possible
11.
A.dismissesB.admitsC.feelsD.moves
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A.allB.mostC.oneD.none
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A.ThusB.HoweverC.InsteadD.Still
14.
A.reactionB.reflectionC.operationD.imagination
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A.trappedB.amazedC.threatenedD.teased
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A.backwardsB.aloneC.forwardsD.along
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