八年级英语（牛津译林版）第09练 现在完成时试题版

第09练现在完成时（一）墓|积累运用现在完成时表示过去发生的动作对现在造成的影响或结果，也可以表示从过去某一时间开始，一直持续到现在的动作或状态。常与already（已经），just（刚刚），ever（曾经），never（从不），before（以前），yet（仍然）等连用。考点1现在完成时的结构肯定句主语+have/has+动词的过去分词+其他.Ihavealreadyfinishedmyhomework.我已经完成了我的作业。否定句主语+have/has+not+动词的过去分词+其他.Ihavenotheardfromhimyet.我还没收到他的来信。一般疑问句和简略回答Have/Has+主语+动词的过去分词+其他？Yes,主语+have/has.No,主语+have/hasnot.一HaveyoueverbeentoBeijing?你曾去过北京吗？—Yes,Ihave.是的，我去过。/No,Ihaven't.不,我没去过。注意：havenot常简略为haven't,hasnot常简略为hasn't。考点2already与yet在现在完成时中的用法alreadyadv.已经；早已通常用于肯定句中，一般用于have/has后，实义动词前，也有放在句尾的情况。Ihavealreadyhadbreakfast.我已经吃过早饭了。yetadu.还；已经用于否定句和疑问句Ihaven'tdonemyhomeworkyet.中，一般用在句末。一、单项选择基础过关练1.Therobotavirus.YoushouldA.hascaught;haveitfixedB.我还没有做作业。assoonaspossible.hascaught;haveitfixingC.D.C.D.hasbeencaught;haveitfixedhasbeencaught;haveitfixing2.I'mafraidyouahighfever.—Yes,IA.have;havegotB.havegot;havehadC.had;havehad—Yes,IA.have;havegotB.havegot;havehadC.had;havehadD.havegot;haveahighfeverfortwodays.3.——Howlonghavethey——Formorethantwentyyears.A.marriedB.hadmarriedC.ismarriedD.beenmarried4.MikeSmithhasbeeninChinaforfifteenyearsandhealotofChinesefriends.A.makesB.madeC,hasmadeD.willmake5.Infactheknowsthisplaceverywell,forhetherethreetimes.A.hasbeenB.hasbeentoC.hasgoneD.hasgoneto6.（2017・A.marriedB.hadmarriedC.ismarriedD.beenmarried4.MikeSmithhasbeeninChinaforfifteenyearsandhealotofChinesefriends.A.makesB.madeC,hasmadeD.willmake5.Infactheknowsthisplaceverywell,forhetherethreetimes.A.hasbeenB.hasbeentoC.hasgoneD.hasgoneto6.（2017・无锡周铁学区联盟月考）一YouJoylandinChangzhoulastsummer?一No.IofaplacecalledJoyland.A.havevisited;haven'theard B.visited;haven'theardC.havevisited;didn'thear D.visited;didn'thear—youevertoHongKong?一Yes,onlyonce.A.Did;go B.Have;goneC.Do;go D.Have;beenThebigchangesinthecityalsoussome.A.hasbrought;question B.havebrought;problemC.hasbrought;questions D.havebrought;problems一Hi,Iyouforalongtime.一IinHongKong.Fvejustcomeback.A.havensseen;shallbe B.didn'tsee;willbeC.haven9tseen;was D.haven5tseen;amWequitealotofworkfbrthemorning,nowlet'stakeabreak.A.aredoing B.willdo C.havedone D.weredoing——MayIborrowyournew-boughtbookTheAdventuresofTomSawyernow?一I'mafraidnot.Ionlyhalfofit,andI'lltrytofinishitthisweekend.A.read B.wasreadingC.haveread D.willread—Ourgovernmentanewruletostopyoungpeopleplayingvideogamestoolong.一Yes,therulesaystheteenagersunder18canplayonlinenomorethan3hoursaweek.A.willmake B.ismaking C.hasmade D.make一WhatdoyouthinkofthefilmAnneofGreenGables?一It'sfantastic.Titmanytimesalready.A.see B. willsee C. haveseen D.amseeingBettywantsto buyhermotherabirthday present,butshewhat tobuy.A.doesn9tdecideB.didn'tdecideC.hasn'tdecided D.won9tdecideInthepastfiveyears,thenumberofstudentsinourschoolgrowing.A.kept B.havekept C.haskeptThefilmTheBattleAtLakeChangjinIIisverytouchingandIittwice.A.sees B.hasseen C.haveseen D.saw——Asweknow,themovieIAmWhatIAmahitthesedays.一Yeah.Manypeople,especially,teenagerslovewatchingit.A.become B.wasbecomingC.hasbecomeD.became—Ilikethefruitsoup,Mum!Butit'lltastebetterifitissweeter.一IthinkIenoughsugar.Eatingtoomuchsugarisn'tgoodfbryourhealth.A. add B.amadding C. willadd D.haveaddedMyhometownalot.Comeandseethechangesifyouhavetime.A. changes B.changed C. willchange D.haschanged—HowcanIcontacthim?——Iyou,weren'tyoulistening?A.B.amtellingC.willtellD.havetold碰，警［能力提升练二、语法选择RashadConwellhasworkedasaFedExdriverforeightyears.Hethepeoplewholivealonghisregularroute（路线）inTegaCay,SouthCarolina.Heevenknowswhoisusuallyathomeduringthedayandwhoisnot.OnTuesdayafternoon,asRashadwasworking,hesawsmokefromthegardenofahouse.Knowingthisfamilywasusuallyathomeduringtheday,Rashadstoppedhistruckandrantothefrontdoor.Whenawomanopenedthedoor,shethoughtRashadwasdeliveringapackage（包裹）.Instead,tohersurprise,"Ma'am,yourhouseisfire!^^Rashadtoldher.Rashadhelpedherandhergrandchildgetoutfromthehousewithintime.Randy,man,workingintheneighborhoodsawthesmokeandwenttowarnthefamilyaswell.HehelpedJohn,oneofthefamilymembers,escapefromtheroom."ItwashotthatIcouldn'tgetawayfromthefirebymyself."Johnsaid."Iftheyhadn'ttoldustogetout,Iwouldhavebeeningreatdanger.luckydog!”ThankstoRashadandRandy,allofthefamily.Althoughtheirhomewasacompletemess,theyfeltluckytobeisknowingB.knewC.hasknownD.willknow21.A.22.A.aB.anC.theD./23.A.riseB.rosec.risenD.rising24.A.underB.onc.inD.from25.A.shortB.shorterc.shortestD.theshortest26.A.anotherB.otherc.othersD.theother27.A.suchB.veryc.tooD.so28.A.WhataB.Howac.WhatD.How29.A.aresavingB.aresavedc.weresavedD.weresaving30.A.liveB.alivec.livelyD.living三、阅读理解Antshavetheabilitytofindoutcancerouscellsinhumans,anewstudyhasdiscovered,suggestingtheycouldbeusedforcancerdiagnosis（诊断）infuture.Antscandiscoverthecancerouscellswhicharedifferentfromhealthycells.Thankstotheirsenseofsmell,thestudyalsoadded,antscouldturnouttobebetteratlocating（定位）cancerouscellsinhumansthandogs.Toimprovetheirresearch,thescientistshadtestswith36ants,smellingcellsunderanexperimentwithalowercostandefficientstudy.First,theyexposed（暴露）theantstothesmellofasampleofcanceroushumancells,thentheyweregivensugarforaprize.Inasecondstep,thescientistsexposedtheantstotwodifferentsmells.Onewasanewsmellandthesecondwasthesmellofthecancerouscells.Finally,theantsfollowedthecancerouscellsdirectlywiththesmelltheyhadsmeltinthefirststep.Thistestshowsthatantscantellthedifferencesbetweenthecancerouscellsandhealthycellswithhightalent,capabilitytolearnquickly,pointsoutCNRSinanews.Thisisn'tthefirsttimethatscientistshaveusedtheanimalsenseofsmelltofindcancerouscells.Forexample,dogs'nosesarefitformedicaldiagnosisandusedforthedetectionofcancer,whichcanofferthepropermedicaltreatment,thescientistsexplained.However,trainingthemtodosorequiresseveralmonthstoayear.Thetestcouldbeusedinvariousofothersmelltasks,suchasfindingthedifferencesamongthedrugs,explosives（炸药）,spoiledfood,orotherdiseases.Whyantscanfindoutthedifferencesbetweenthecancerouscellsandhealthycells?A.Becauseantshaveastrongsenseofsmell. B.Becausespecialistsdosomeresearches.C.Becauseantshavehightalentsoflearning.D.Becausethisisn'tthefirststudytofindoutthecancerouscells.Whichofthefollowingbestdescribesants'ability?A.Cleverandweaksense B.EfficientandstrongC.Hard-workingandlovely D.HightalentandcapableTheunderlinedword"detection"inParagraph4means"A.test B.training C.discovery D.changeWecanlearnfromthepassagethat.scientistsfoundtheabilityofantswithoutanyeffortdogs'nosesareonlywellsuitedformedicaldiagnosisscientistshaveusedtheanimalsenseofsmelltofindcancerouscellsformanytimesD.trainingtheanimalsrequiressomedaystoamonth.Whichcanbethebesttitleforthepassage?Anewstudyaboutants'abilityTheinformationaboutsenseofsmellThedifferencesbetweenthecancerouscellsandhealthycellsCancerdiagnosisinfuture四、语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。Theideaoflivingunderwaterisoften36(bring)upasapossiblefutureforhumanbeings.Itseemstobeagreatway37(avoid)overpopulationortosurvivewhenaterribledisasterhits.Butwhatisitliketoliveunderthewaves?Inthe1960s,JacquesCousteau'steambuiltthe38(world)firstunderwaterlab.ItwascalledConshelfLTwomenlivedinsideforaweek.In1963,ConshelfIIwassetupoffthecoastofSudan.Thistime,thescientistsspent30daysunderwater.Sincethen,there39(be)manyotherunderwaterlabs.Aquarius