SectionIUseofEnglishDirections：Readthefollowingtext.Choosethebestword(s)foreachnumberedblackandmarkA,B,CorDonANSWERSHEET1.(10points)Mostpeoplewhotravellongdistancecomplainofjetlag.Jetlagmakesbusinesstravelerslessproductiveandmoreprone1makingmistakes.Itisactuallycausedby2ofyour"bodyclock"—asmallclusterofbraincellsthatcontrolsthetimingofbiological3.Thebodyclockisdesignedfora4rhythmofdaylightanddarkness,sothatitisthrownoutofbalancewhenit5daylightanddarknessatthe"wrong"timesinanewtimezone.The6ofjetlagoftenpersistfordays7theinternalbodyclockslowlyadjuststothenewtimezone.Nowanewanti-jetlagsystemis8thatisbasedonproven9pioneeringscientificresearch.Dr.MartinMooreEdehad10apracticalstrategytoadjustthebodyclockmuchsoonertothenewtimezone11controlledexposuretobrightlight.Thetimezoneshiftiseasytoaccomplishandeliminates12ofthediscomfortofjetlag.Asuccessfultimezoneshiftdependsonknowingtheexacttimestoeither13oravoidbrightlight.Exposuretolightatthewrongtimecanactuallymakejetlagworse.Theproperschedule14lightexposuredependsagreatdealon15travelplans.Dataonaspecificflightitineraryandtheindividual'ssleep16areusedtoproduceaTripGuidewith17onexactlywhentobeexposedtobrightlight.WhentheTripGuidecalls18brightlightyoushouldspendtimeoutdoorsifpossible.Ifitisdarkoutside,ortheweatherisbad,19youareonanaeroplane,youcanuseaspeciallightdevicetoprovidethenecessarylight20forarangeofactivitiessuchasreading,watchingTVorworking.1.A.toB.ofC.forD.from2.A.eruptionB.disruptionC.ruptureD.corruption3.A.actionsB.behaviorC.functionsD.reflection4.A.formalB.regularC.continualD.circular5.A.experiencesB.possessesC.encountersD.retains6.A.signsB.defectsC.diseasesD.symptoms7.A.ifB.whereasC.whileD.although8.A.availableB.agreeableC.adaptableD.approachable9.A.extensiveB.tentativeC.broadD.inclusive10.A.devisedB.scrutinizedC.visualizedD.recognized11.A.inB.asC.atD.through12.A.moreB.littleC.mostD.least13.A.shedB.retrieveC.attainD.seek14.A.inB.forC.onD.with15.A.specificB.complicatedC.uniqueD.peculiar16.A.modeB.styleC.normD.pa...
