专业四级2004(完形填空和单项选择)

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1、专业四级(TEM-42004)Thenormalhumandailycycleofactivityisofsome7-8hours’sleepalternationwithsome16-17hours’wakefulnessandthatthesleepnormallycoincides(31)thehoursofdarkness.Ourpresent(32)iswithhoweasilyandtowhatextentthis(33)canbemodified.Thequestionisnomereacademicone.Theease(34)peoplecanchangefromwo

2、rkinginthedaytoworkingatnightisa(35)ofgrowingimportanceinindustrywhereautomation(36)round-the-clockworkingofmachines.Itnormally(37)fromfivedaystooneweekforapersonto(38)toa(39)routineofsleepandwakefulness,sleepingduringthedayandworkingatnight.(40),itisoftenthecaseinindustrythatshiftsarechangedeve

3、ryweek.Thismeansthatnosoonerhashegotusedtooneroutine(41)hehastochangetoanother,(42)muchofhistimeisspentneitherworkingnorsleepingvery(43).Oneanswerwouldseemtobe(44)periodsoneachshift,amonth,oreventhreemonths.(45),recentresearchhasshownthatpeopleonsuchsystemswillreverttogobacktotheir(46)habitsofsl

4、eepandwakefulnessduringtheweekendandthatthisisquiteenoughtodestroyany(47)tonightworkbuiltupduringtheweek.Theonlyrealsolutionappearstobeto(48)thenightshifttothose(49)nightworkerswhose(50)maypersistthroughweekendsandholidays.31.A.inB.withC.ofD.over32.A.thinkingB.studyC.problemD.concern33.A.cycleB.

5、periodC.circleD.round34.A.atwhichB.withwhichC.atwhatD.withwhat35.A.problemB.difficultyC.troubleD.matter36.A.asksB.invitesC.callsforD.reactsto37.A.takesB.spendsC.demandsD.asks38.A.adaptB.adoptC.adjustD.adept39.A.formerB.returnedC.reversedD.regular40.A.ThereforeB.UnfortunatelyC.InawordD.Incomparis

6、on41.A.asB.whenC.thenD.than42.A.thoughB.sothatC.whileD.as43.A.efficientlyB.goodC.easilyD.happily44.A.shorterB.betterC.longerD.nicer45.A.SoB.InshortC.SimilarlyD.However46.A.newB.normalC.temporaryD.favourite47.A.changeB.returnC.adaptationD.tendency48.A.handoverB.handinC.handoutD.handon49.A.tempora

7、ryB.contemporaryC.permanentD.perpetual50.A.wakefulnessB.sleepC.preferenceD.habit译文：人类正常的日常作息周期是7~8小时的睡眠时间与16~17小时的清醒时间相互交替，而睡眠时间通常与黑夜重合。目前我们关心的是人的这一作息规律是否很容易或者能在多大程度上得以改变。这个问题决非仅仅是学术问题。在工业领域，自动化过程要求机器24小时运转，因而，人如何能够自如地从白天的工作