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At the beginning of this century, medical scientists made an interesting discovery: we are built not just of flesh(肌肉) and blood but also of time. They were   41  to show that we all have a ‘body clock’   42  us, which controls the   43  and fall of our body energies,   44  us different from one day to the next.
The   45  of a ‘body clock’ should not be too   46  since the lives of most living things are controlled   47  the 24-hour night-and-day cycle(循环). We feel   48  and fall asleep at night and become   49  and energetic during the day. If the 24-hour cycle is   50  most people experience unpleasant   51 . For example, people who are not   52  to working at night can find that   53  of sleep causes them to   54  badly at work.
  55  the daily cycle of sleeping and   56 , we also have other cycles which   57  longer than one day. Most of us would   58  that we feel good on some days and not so good on   59 ; sometimes our ideas seem to flow and at other times, they   60  do not exist.
小题1:
A.anxiousB.carefulC.ableD.proud
小题2:
A.aroundB.insideC.betweenD.on
小题3:
A.riseB.supplyC.useD.movement
小题4:
A.showingB.treatingC.changingD.making
小题5:
A.ideaB.opinionC.storyD.invention
小题6:
A.difficultB.excitingC.interestingD.surprising
小题7:
A.fromB.overC.byD.during
小题8:
A.dull B.dreamy C.tired D.peaceful
小题9:
A.regularB.excitedC.clearD.lively
小题10:
A.shortenedB.disturbedC.resetD.troubled
小题11:
A.momentsB.sensesC.feelingsD.effects
小题12:
A.usedB.allowedC.expectedD.prevented
小题13:
A.missB.noneC.needD.lack
小题14:
A.showB.performC.manageD.control
小题15:
A.WithB.ExceptC.As well asD.Rather than
小题16:
A.waking B.movingC.livingD.working
小题17:
A.repeatB.remainC.happenD.last
小题18:
A.believeB.agreeC.realizeD.allow
小题19:
A.othersB.the otherC.all otherD.other
小题20:
A.onlyB.justC.stillD.yet

小题1:C
小题1:B
小题1:A
小题1:D
小题1:A
小题1:D
小题1:C
小题1:C
小题1:D
小题1:B
小题1:C
小题1:A
小题1:D
小题1:B
小题1:C
小题1:A
小题1:D
小题1:B
小题1:A
小题1:B

小题1:C上文提到本世纪初,科学家们就已经发现人体不仅有血肉组成,还有时间。因此,根据这个发现,他们能够证明在人体内存在生物钟。be anxious to do渴望做某事,此处没有强调科学家的心理活动,故排除。
小题1:B根据常识及文中第一句we’re built not just of flesh and blood but also of time.可知答案。
小题1:A空格上所缺词应与and后面的fall 构成互补关系,才能较全面的概括人的活动。
小题1:D结合前一句话中的controls可知,生物钟能使我们每天的表现不一样。show 证明,展示,指示;treat对待;change使改变。如选change就意为使我们发生变化,与上下文意思不符。
小题1:A“生物钟”只是科学家经过研究而得出的一种结论或观点。
小题1:D根据空格后面的原因状语从句可知答案。
小题1:C大部分有生命的动物都受到日夜轮回这个时间循环的控制。
小题1:C结合常识可知,人工作一天,到晚上应是比较劳累。另外,后面的fall asleep 应是由劳累引起的。dreamy多梦的,不应出现在fall asleep之前。
小题1:D人休息了一晚上,第二天又充满了生机、活力。
小题1:B如果时间循环被打乱,大部分人就会不舒服。
小题1:C结合下一句的例子可知,此处应为人感到不舒服。
小题1:A be used to doing something习惯于……。上文中提到人的生物钟如被打乱,可能会感到不舒服。所以,如果不习惯于在晚上工作的人如果晚上工作,工作就会做不好。
小题1:D lack此处为名词,在从句中做主语,lack of…缺乏……。
小题1:B perform工作;表现。
小题1:C根据后面的also可得知答案。
小题1:A人类的日夜循环分为两段时间:即睡眠时的时间和醒着的时间。
小题1:D根据后面的longer than one day 可知,此处last意为持续。
小题1:B大部分人都有这种体验,都同意这种看法。
小题1:A上文提到了some days与之相对应的是other days即others。
小题1:B此处just用于否定句中表强调,它们根本就不存在。
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A.caseB.chanceC.eventD.accident
小题2:
A.outB.farC.away D.off
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A.participateB.decideC.chooseD.go
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小题1:
A.cooling downB.warming upC.speeding upD.slowing down
小题2:
A.get upB.wake upC.turn upD.rise up
小题3:
A.piledB.pushedC.parkedD.paused
小题4:
A.putting inB.putting onC.putting offD.putting away
小题5:
A.brokenB.robbedC.hiddenD.gone
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A.studyB.shopC.workD.deliver
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A.gettingB.protectingC.savingD.allowing
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