高二英语下学期unit12测试题

BOOK2unit121.Thebeliefthat___peoplefinditmoreconvenienttoshoppnSundays___intheresearch.A.that;wasprovedB.that;wereprovedC.which;provedD.whether;proved2.Ihaven’tmet______people.A.suchmanyB.manysoC.manysuchD.muchsuch3.Thepicture_______onthewallispaintedbymyson.A.havinghungB.hangingC.hangsD.beinghung4.Theteacheraskedthestudentstoreadpoems,______Tom.A.tostartwithB.tobeginwithC.startingwithD.startwith5.Theshopownerwelcomedalltheguestswitha_____smile.A.practiceB.practiseC.practicalD.practiced6.Ionlyknowitisa____distanceawayfromhere,butIdon'tknow____thedistanceexactlyis.A.good;whatB.good;howfarC.far;whatD.far;howfar7.Theywent______theshipjustbeforeitstartedtoleave.A.abroadB.boardC.aboardonD.boardon8.Itwasalreadyoneinthemorning____Isawthedullyelloweyeofthecreatureopen.A.thatB.whenC.whichD.since9.------Youhaven’tsaidawordaboutmynewhair-style.Whatdoyouthinkofit?-----I’msorryI_______anythingaboutitsooner.Icertainlythinkit’spretty.A.don’tsayB.wasn’tsayingC.didn’tsayD.haven’tsaid10------You’retalkingtoomuch.-------Onlyathome.Noone______mebutyou.A.ishearingB.hadheardC.hearsD.heard11.Thethieftriedtobreakawayfromthepolicemanwho__________himbutfailed.A.heldB.hadheldC.wouldholdD.washolding12.You_________exercisesatyourdesk!Whynottakesomeexercise?A.alwaysdoB.arealwaysdoingC.havealwaysdoneD.havealwaysbeendoing13.----Whatwereyouuptowhenshedroppedin?----I____forawhileand____somereading.A.wasplaying;wasgoingtodoB.played;didC.hadplayed;wasgoingtodoD.hadplayed;did14.UntilthenI_______forhimforhoursinhisoffice.A.waitedB.waswaitingC.havebeenwaitingD.hadbeenwaiting15.Lookatthis!I_______somemagazinesand_______thiscard!A.waslookingthrough;foundB.amlookingthrough;hadfoundC.lookedthrough;hadfoundD.hadlookedthrough;finding16.------Tom’swifetooktheplaceofhimtoattendtheconference.-------IwouldratherTom_______there,nothiswife.A.hadbeenB.havebeenC.wasD.went17.Theshopassistantpromisedmethatthematerial______andwhatshesaid______tobetrue.A.wouldbedriedeasily;wasprovedB.willbedriedeasily;wasprovedC.driedeasily;provedD.wasdriedeasily;proved完形填空Onedayafamousspeakergaveaspeechtoacrowdofpeople.Heheldupa18bill.Heasked,Whowouldlikethis$20billHandswere19.Thenhesaid,Iamgoingtogivethis$20tooneofyou,butfirstletmedothis.Hebegantocrumple（弄皱）the20.Hethenaskedtheaudience,21stillwantsit?Stillthehandswent22intheair.What23IdothisHeasked,andhe24itontheground,andstartedtosteponit.He25itup.Nowthebillwas26andcrumpled.Nowwhostillwantsit?Stillthehandswentup.Myfriends,”Hecontinued,“Youhaveall27agoodlesson.Nomatter28Ididtothemoney,youstillwanteditbecausethebilldidnotloseits29.Itwasstillworth$20.Manytimesinour30,wearedropped,crumpled,andsteppedon,becausewesometimes31wrongdecisions,orwemay32withsomethingwedonot33.Whenwhathappens,wefeeldepressedandthinkweare34.Butinfactnomatterwhathashappenedorwhatwillhappen,youwillneverloseyourvalue.Theworthofourlifecomesnot35whatwedoorwhomweknow,butinwhoweare!Don’tforget‘theworthofathingdoesnotdependonitsoutside36,butonitsinnervalue.’Thisisthe37oflife.18.A.20dollarB.20dollarsC.20-dollarsD.20-dollar.19.A.risenB.putC.raisedD.held20.A.billB.groundC.moneyD.finger21.A.SomebodyB.NobodyC.AnybodyD.You22.A.upB.downC.aboveD.below23.A.shouldB.canC.ifD.whether24.A.threwB.droppedC.fellD.put25.A.showedB.liftedC.putD.picked26.A.goodB.cleanC.largeD.dirty27.A.gaveB.learnedC.haveD.take28.A.thatB.howC.whatD.why29.A.valueB.priceC.effectD.part30.A.studiesB.workC.fieldsD.lives31.A.doB.makeC.giveD.take32.A.meetB.dealC.talkD.get33.A.likeB.hopeC.wishD.except34.A.worthlessB.weakC.poorD.careless35.A.fromB.inC.aboutD.at36.A.beautyB.faceC.looksD.image37.A.lessonB.truthC.sayingD.storyAAmericanresearcherssaydrinkingteamayhelpstrengthenthebody’sdefensesystemagainstinfection.DoctorsatBrighamandWomen’sHospitalinBoston,Massachusetts,didthestudy.Theteamstudiedachemicalfoundinblack,green,oolongandpekoetea.Thischemicalisanaminoacid（氨基酸）calledL-theanine.ThescientistssayitmayincreasethestrengthofgammadeltaTcells.That’stheletterT,notthedrink.GammadeltaTcellsarepartofthebody’sdefenses.First,theresearchersmixedsomeofthesecellswithantigens（抗原）foundintheaminoacid.Antigenshelpthebodyreacttoinfection.Thenthescientistsaddedsomebacteria.Withintwenty-fourhours,thecellsproducedalotofinterferon,asubstancethatfightsinfection.Cellsnotmixedwiththeantigensdidnotproduceinterferon.Inthesecondpartofthestudy,elevenpeopledrankfivetosixcupsofblackteaeveryday.Tenotherpeopledrankthesameamountofinstantcoffee.Thatisdriedcoffeemixedwithhotwater.Twoweekslater,andagaintwoweeksafterthat,theresearcherstestedthebloodofalltwenty-onepeople.Theyalsolookedatwhathappenedwhentheyaddedbacteriatothebloodcells.Theyfoundthattheteadrinkersproducedfivetimesmoreinterferonaftertheystarteddrinkingtea.Thecoffeedrinkersdidnotproduceinterferon.DoctorJackBukowskiledthestudy.HesaystheantigensaddedtothegammadeltaTcellswereresponsiblefortheincreasedreactiontothebacteria.Hesaysthestudyalsoshowedthatthecellswereabletorememberthebacteriaandfightthemagainthenexttime.Earlierresearchalreadyhasfoundthatteacanhelppreventheartdiseaseandcancer