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完形填空 It seems parents have long been right. Going to bed early is key to getting enough sleep and helping adolescents feel on top of the world, a new study reported.A1of sleep among youngsters may2depression and suicidal (自杀的)thoughts, according to the study by the Columbia University Medical Center.Our results are3with the theory that inadequate sleep is a risk factor for depression, working with other4and protective factors through multiple possible causal pathways to the development of this5disorder, said lead author James Gangwisch.6quality sleep could therefore be a preventative measure against 7and a treatment for depression, he added in the study 8in the Friday issue of Sleep magazine.The study followed the nightly habits of some 15,659 college and high-school students, and 9those who consistently went to bed 10midnight had a 24 percent higher risk of depression than those who turned in before 10:00 pm.Night owls(夜猫子)also ran a 20 percent 11risk of battling suicidal thoughts, the study added.The American Academy of Sleep Medicine12that adolescents should sleep at least nine hours or more a night. Those who were tucked in before 10:00 pm reported they slept13about eight hours and 10 minutes.But that amount of sleep14significantly for those in bed after midnight.And adolescents who slept five hours or less a night were 71 percent more 15to suffer depression and 48 percent more16becoming suicidal, the study said.It is a common perception and societal 17that adolescents do not need as much sleep as pre-adolescents, yet studies suggest that adolescents may18require more sleep, said Gangwisch.Studies have found that adolescents do not go to bed 19enough to make up for earlier school start times, and transitions to earlier school start times have been shown to be 20with significant sleep deprivation(剥夺). 1.A.nightB.moderationC.limitD.lack2.A.result inB.lie inC.come aboutD.bring in3.A.opposedB.mixedC.relatedD.consistent4.A.riskB.chanceC.potentialD.reason5.A.moodB.bodyC.feelingD.mind6.A.littleB.lackC.AdequateD.over7.A.sufferingB.depressionC.disorderD.sadness8.A.reportedB.publishedC.reflectedD.noted9.A.foundB.investigatedC.appraisedD.supported10.A.beforeB.fromC.byD.after11.A.lowerB.higherC.moreD.less12.A.appealsB.recommendsC.callsD.plans13.A.on averageB.in placeC.ahead ofD.in number14.A.increasedB.disappearedC.strengthenedD.dropped15.A.likelyB.probableC.possibleD.perhaps16.A.at sight ofB.at risk ofC.in front ofD.as a result of17.A.wishB.expectationC.suggestionD.attempt18.A.exactlyB.immediatelyC.directlyD.actually19.A.earlyB.latelyC.soonD.quickly20.A.separatedB.associatedC.dividedD.depended

DADAA CBBAD BBADA BBDAB解析本文说明的是一项最新研究报告称，早睡不仅是得到充足睡眠的关键，而且有助于改善青少年的情绪。完成本完形填空时，我们应把生活中的实际和作者的思路逻辑联系起来。1. D 检测名词的含义辨析及在语意上的合理搭配。语意是：这项由哥伦比亚大学医学中心开展的研究表明，青少年缺乏睡眠可能会引发抑郁以及自杀的念头。经过分析我们不难看出此处应该填上表示缺乏之意的名词，也即是D项：lack，而其余的ABC三项依次分别所表达的意思：晚上，中度，限制，这些意思在这儿都不符合此处的上下文之间语言逻辑。故D项为准确

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