-1-课时作业(十二)[必修3Unit2Healthyeating](限时:35分钟)Ⅰ.单项填空1.Agoodteachershouldleavesometimeforthestudentsto________theknowledge.A.introduceB.receiveC.digestD.accept2.Jennifer,whoismybestfriend,saidshewouldgoabroadtofurtherhereducation________.A.beforelongB.longbeforeC.shortlyafterD.veryfast3.[2012·四川卷]Beforedrivingintothecity,youarerequiredtogetyourcar________.A.washedB.washC.washingD.towash4.Knowledgeandlearningareimportantifwewanttobesuccessful,buttheymayalso________ourthinking.A.directB.limitC.changeD.improve5.Ihaveareallybadheadache,andIhaveto________adoctoraboutmypains.A.consultB.remindC.informD.advise6.—YououghttohavemadeanapologytoTomyesterdayevening.—Yes,IknowI________.A.oughttohaveB.havetoC.shouldD.musthave7.Ifhecan________hisabilitywithhardwork,heshouldbeverysuccessful.A.realizeB.developC.combineD.train8.—Youdon'tseemtoenjoyyourmealverymuch.—Notreally,Iamjust________.A.onadietB.ondietsC.onpurposeD.onbusiness9.It'sunfairthathe________cheatingbecausehe'safamousauthor.A.makesuseofB.getsawaywithC.getsridofD.endsupwith10.Beforethewarbrokeout,thousandsofpeople________possessionsinsafeplacestheycouldnottakewiththem.A.threwawayB.putawayC.gaveawayD.carriedaway-2-11.Theprotestorsurgedtheirgovernmenttotakemeasuresto________theircarbonemissiontoreducegreenhouseeffect.A.cutoffB.cutupC.cutoutD.cutdown12.Asweallknow,Mikehasanexcellentunderstandingofhisown________andweaknesses.A.strengthsB.valueC.techniquesD.energy13.—Areyousatisfiedwithwhatshehasdone?—Notalittle.Itcan'tbe________.A.anyworseB.anybetterC.sowellD.sobad14.Ihavealot________inthecomingweekend,soIcan'tspareanytimetohavearest.A.completingB.tocompleteC.completedD.beingcompleted15.MoreandmoreChinesepeoplehaverealizedthattheyshouldgoon________balanceddietanddo________exerciseeveryday.A.a;/B.the;anC.the;theD./;anⅡ.阅读理解AEmployeesarebeingfloodedwithtoomuchinformationthathaslittletodowiththeirwork,accordingtoanewsurvey.Onaverage,whitecollarworkersspend51percentoftheirworktimereceivingandprocessinginformation.Onlyonethirdofitwasrelevanttotheirwork,thesurveyfound.Informationoverloadforwhitecollarworkershasbecomeaglobalissue.Thehugeamountofinformationhasalreadyaffectedtheirefficiencyinmanagementaswellastheirperformanceatwork.BuriedwithemailsEverymorning,asecretaryatthehumanresourcesdepartmentofanautopartscompanyopensheremailbox,onlytofinditcrammedwithatleast50unreadmails.Forher,evenscanningthroughtheseemailseverydaytakesatleasthalfanhour.Someofhercolleaguesarenotsolucky—theyhavetoreadatleast100.BotheredwithcallsTelephonecallsarealsocausingaproblem.Morethan40percentwhitecollarworkerschoosemobilephonesasthepreferredwaytocommunicateimportantandurgentbusinessmatters.Talkingsavestimeandenergyovertheclicking,readingandreplyingtoemails,butphonecallsarealsomoredistracting(分心的).Whileansweringacall,aclerkislikelytoputawayamuchmoreimportanttaskathand-3-andstartthebusinessbeingtalkedaboutonthephone.Solution?NotyetManycompaniesstartwithprovidingstaffwithbettercomputers,betterInternetaccessandmoreadvancedgadgets(小装置).Forexample,staffmembersaboveacertainlevelinonecompanywillbeprovidedwithablackberryphoneforeasieraccesstotheiremails.Thecompanyhasalsoorganizedmanylecturesonefficientwaysofemailmanagement.Yetmostwhitecollarworkersthinktheircompaniescandomore.16.Whatdoesthenewsurveyfindaboutwhitecollarworkers?A.Theyspend51percentoftheirworktimeonmeetings.B.Onlyhalfoftheinformationtheyreceiveisuseful.C.Over60percentofthemprefertousethetelephone.D.Someofthemhavetoreadatleast100emailseveryday.17.Telephonecallscauseaproblembecause________.A.theytakeupthetimetoreceiveandsendemailsB.theyareoftennotansweredC.theyaremostlynotaboutbusinessD.theymayleadtochangeofworkschedule18.Howdosomecompaniestrytosolvetheproblemofinformationoverload?A.Theystarttogivestaffapayrise.B.Theyplantoemploymorepeople.C.Theyprovideemployeeswithmoreadvancedequipment.D.Theyorganizelecturesonhowtoreducestress.19.Whatisthemajorissuediscussedinthistext?A.Poormanagementleadstoinefficiencyatwork.B.Junkmailiscausingbigtrouble.C.Whitecollarworkerssufferfrominformationoverload.D.Bettercomputersareinneedinworkplaces.BScientistswhotrytopredictearthquakeshavegottensomenewhelpersrecently—animals.That'sright,animals.Scientistshavebeguntounderstandwhatfarmershaveknownforthousandsofyears.Animalsoftenseemtoknowinadvancethatanearthquakeiscoming,andtheyshowtheirfearbyactinginstrangeways.BeforeaChinesequakein1975,snakesawokefromtheirwintersleepearlyonlytofreezetodeathinthecoldair.Cowsbroketheirhalters(缰绳)andtriedtoescape.Chickensrefusedtoentertheircage.Allofthisunusualbehavior,aswellasphysicalchangesintheearth,warnedChinesescientistsofthecomingquake.Theymovedpeopleawayfromthedangerzoneandsavedthousandsoflives.Onetaskforscientiststodayistolearnexactlywhichtypesofanimalbehaviorpredictquakes.It'snotaneasyjob.Firstofall,noteveryanimalreactstothedangerofanearthquake.JustbeforeaCaliforniaquakein1977,forexample,anArabianhorsebecameverynervousandtriedtobreakoutofhisenclosure.TheAustralianhorsenexttohim,however,remainedperfectlycalm.It'sals