2026年陕西省湘教版初中英语八年级上册第12单元语法练习

2026年陕西省湘教版初中英语八年级上册第12单元语法练习一、单项选择题（总共10题，每题2分，共20分）1.Inthe12thunitofthenewcurriculum,studentslearntousethepresentperfecttensetodescribelifeexperiences.Whichsentencecorrectlyexpressesthemeaningof"IhavevisitedtheGreatWall"?A.IgototheGreatWalllastyear.B.IwenttotheGreatWalllastyear.C.IhavebeentotheGreatWall.D.IamvisitingtheGreatWallnow.解析：Thepresentperfecttense("havevisited")isusedtoconnectpastactionswiththepresent,emphasizinglifeexperience.OptionAandBusethesimplepastorpastcontinuous,whichlackthisconnection.OptionDusesthepresentcontinuous,whichdescribesongoingactions,notcompletedexperiences.OptionCiscorrectbecause"havebeento"indicatesacompletedvisitwithpresentrelevance.2.Theunitfocusesonadjectiveslike"amazing"and"boring"todescribefeelings.Whichsentencecorrectlyusesacomparativeadjective?A.Themovieismoreboringthanthebook.B.Thebookisveryboring.C.Themovieisboring.D.Thebookismoreamazingthanthemovie.解析：Comparativeadjectives("more+adjective"or"-er"form)comparetwothings.OptionAiscorrectbecauseituses"more+boring"tocomparethemovieandbook.OptionBlackscomparison.OptionConlystatesasinglequality.OptionDusesasuperlative("moreamazing"),whichisincorrectfordirectcomparison.3.Theunitintroducesthestructure"Itisimportantto..."toexpressnecessity.Whichsentenceisgrammaticallycorrect?A.Itisimportanttostudyhardfortheexam.B.Itisimportanttostudyhardabouttheexam.C.Itisimportantforstudyhardfortheexam.D.Itisimportanttostudyhardintheexam.解析："Itisimportantto..."isthestandardstructureforexpressingnecessity.OptionAiscorrectbecauseitfollowsthepattern.OptionBadds"about,"whichisunnecessary.OptionCuses"forstudyhard,"whichisgrammaticallyincorrect.OptionDuses"intheexam,"whichisnotidiomaticforexpressingpurpose.4.Theunitteacheshowtouse"too"and"either"innegativesentences.Whichsentenceiscorrect?A.Ilikecoffee,too.B.Hedoesn’tlikepizza,either.C.Sheistired,too.D.Theydon’tgotoschool,too.解析："Too"and"either"areusedinnegativesentences:"too"attheend(OptionAiscorrectiftheprevioussentenceispositive),"either"attheendofnegatives(OptionBiscorrect).OptionCuses"too"withoutaprecedingpositivestatement.OptionDincorrectlyplaces"too"afteranegative.5.Theunitexplainsthedifferencebetween"for"and"since."Whichsentencecorrectlyuses"since"toindicateastartingpointintime?A.Ihavelivedhereforfiveyears.B.Ihavelivedheresincefiveyearsago.C.IhavelivedheresinceIwasachild.D.IhavelivedhereforIwasachild.解析："Since"requiresapointintime(e.g.,"since2020,""sincelastyear").OptionAuses"for,"whichmeasuresduration.OptionBisincorrectbecause"since"cannottake"fiveyearsago."OptionCiscorrectbecause"sinceIwasachild"isavalidstartingpoint.OptionDisgrammaticallywrong.6.Theunitintroducesthepassivevoicewith"be+pastparticiple."Whichsentenceispassive?A.Theteachergaveushomework.B.Ourhomeworkwasgivenbytheteacher.C.Wefinishedourhomework.D.Thehomeworkisdifficult.解析：Thepassivevoiceemphasizesthereceiverofaction.OptionBispassivebecauseituses"wasgivenby."OptionAisactive.OptionCisactive.OptionDisasimplestatement,notpassive.7.Theunitteacheshowtouse"so"toshowresult.Whichsentencecorrectlyexpressesresult?A.Itrained,sothematchwascanceled.B.Thematchwascanceled,soitrained.C.Itrainedbecausethematchwascanceled.D.Thematchcanceled,soitrained.解析："So"indicatesresult(cause→effect).OptionAiscorrectbecause"itrained"causes"thematchwascanceled."OptionBreversesthelogic.OptionCuses"because,"not"so."OptionDisgrammaticallyincorrect.8.Theunitincludesphrasalverbslike"lookforwardto."Whichsentenceiscorrect?A.Ilookforwardtoseeyounextweek.B.Ilookforwardtomeetingyounextweek.C.Ilookforwardtotoseeyounextweek.D.Ilookforwardforyounextweek.解析："Lookforwardto"requiresthegerundform("meeting").OptionBiscorrect.OptionAusestheinfinitive"tosee,"whichisincorrect.OptionCrepeats"to."OptionDuses"for,"whichiswrong.9.Theunitexplainshowtouse"usedto"forpasthabits.Whichsentenceiscorrect?A.Heusedtosmokeeveryday.B.Sheusedtogotoschoolbybike.C.Theyusedtobestudents.D.Iusedtoatedinnerat7PM.解析："Usedto"+baseverbexpressespasthabits.OptionAiscorrect.OptionBiscorrect.OptionCiscorrect.OptionDiswrongbecause"ate"ispastsimple,notbaseform.10.Theunitteacheshowtouse"as"fortime.Whichsentenceiscorrect?A.AssoonasIarrive,Iwillcallyou.B.IwillcallyouasIarrive.C.IarriveassoonasIcallyou.D.AsIarrive,Iwillcallyou.解析："Assoonas"indicatesimmediatesequence.OptionAiscorrect.OptionBisincorrectbecause"as"heremeans"because."OptionCreverseslogic.OptionDlacks"assoonas."二、填空题（总共10题，每题2分，共20分）1.Lastsummer,I______(visit)themuseumwithmyfamily.参考答案：visited解析："Lastsummer"requiresthesimplepasttense.Theverbis"visit"→"visited."2.She______(notlike)horrormovies,butshe______(like)comedies.参考答案：doesn’tlike;likes解析："Notlike"requiresthesimplepresentnegative."But"introducesacontrast,sothesimplepresentaffirmativeisused.3.They______(live)inthiscity______(since)2015.参考答案：havelived;since解析："Since2015"requiresthepresentperfecttense."Since"isthecorrectpreposition.4.______(be)youfreetomorrowafternoon?I______(go)tothelibrary.参考答案：Are;amgoing解析："Tomorrowafternoon"requiresthesimplefuture("begoingto").Thequestionuses"Are"forfuture.5.Thebook______(write)byafamousauthorlastyear.参考答案：waswritten解析："Lastyear"andpassivevoicerequirethesimplepastpassive("write"→"waswritten").6.I______(notfinish)myhomeworkyet,soI______(study)tonight.参考答案：haven’tfinished;willstudy解析："Yet"requiresthepresentperfectnegative."So"indicatesfutureresult→simplefuture.7.Look!Thechildren______(play)intheparknow.参考答案：areplaying解析："Now"requiresthepresentcontinuoustense.Theverbis"play"→"areplaying."8.It______(rain)allday,sothepicnic______(cancel).参考答案：hasbeenraining;hasbeencanceled解析："Allday"requirespresentperfectcontinuous."So"indicatesresult→presentperfectcontinuous.9.She______(be)tiredbecauseshe______(work)allmorning.参考答案：is;hasbeenworking解析："Because"showscause→presentsimple."Allmorning"→presentperfectcontinuous.10.We______(notknow)theanswer,butwe______(try)again.参考答案：don’tknow;willtry解析："Notknow"→simplepresentnegative."But"→futuresimple.三、判断题（总共10题，每题2分，共20分）1.Thepresentperfecttensecanbeusedtodescribeactionsthathappenedataspecifictimeinthepast.(×)解析：Thepresentperfectdescribeslifeexperiencewithoutaspecificpasttime(e.g.,"Ihavetraveled").Specificpasttimesusesimplepast(e.g.,"Itraveledlastyear").2."Too"and"either"canbeusedinpositivesentencestoshowagreement.(×)解析："Too"and"either"arefornegatives(e.g.,"Idon’tlikeit,either").Positiveagreementsuse"also"(e.g.,"Ilikeit,too").3."Since"and"for"canbeusedinterchangeablytoshowtime.(×)解析："Since"requiresapointintime(e.g.,"since2020")."For"measuresduration(e.g.,"fortwoyears").4.Thepassivevoicealwaysemphasizesthesubjectofthesentence.(×)解析：Thepassivevoiceemphasizesthereceiverofaction(e.g.,"Thebookwasread"→receiveris"thebook").Thesubject("Thebook")islessimportant.5."Begoingto"isalwaysusedforfutureplans.(×)解析："Begoingto"isforintentions/plans(e.g.,"Iamgoingtostudy").Simplefuture("will")isforpredictions(e.g.,"Itwillrain").6."Usedto"candescribecurrenthabits.(×)解析："Usedto"isforpasthabits(e.g.,"Iusedtoplay").Currenthabitsusepresentsimple(e.g.,"Iplay").7."As"canmean"because"whenitintroducesareason.(×)解析："As"forreasonisrareandawkward(e.g.,"Asitwasraining,westayedhome")."Because"isstandard.8.Phrasalverbsalwayshavethesamemeaningastheindividualwords.(×)解析："Lookforwardto"means"expecteagerly,"not"look"or"forward."Phrasalverbshaveidiomaticmeanings.9.Thesimplepasttenseisusedforactionsthathappenedandfinishedinthepast.(√)解析：Simplepast(e.g.,"Ivisited")isforcompletedpastactions.10."So"canshowtimeorder(e.g.,"SoIarrived").(×)解析："So"meansresult(e.g.,"Istudied,soIpassed").Timeorderuses"after,""before,"etc.四、简答题（总共8题，每题2分，共16分）1.Explainthedifferencebetween"for"and"since"inthepresentperfecttense.参考答案："For"measuresduration(e.g.,"forthreeyears")."Since"indicatesastartingpoint(e.g.,"since2020").2.Howdoyouformthepassivevoice?参考答案：Use"be+pastparticiple"(e.g.,"Thebookwasread").Thesubjectbecomesthereceiverofaction.3.Whenshouldyouuse"too"and"either"?参考答案："Too"inpositivesentences(e.g.,"Ilikeit,too")."Either"innegativesentences(e.g.,"Idon’tlikeit,either").4.Whatisthestructureforexpressingnecessity?参考答案："Itisimportantto..."(e.g.,"Itisimportanttostudyhard").5.Howdoyouuse"lookforwardto"?参考答案："Lookforwardto+gerund"(e.g.,"Ilookforwardtomeetingyou").6.Whyis"usedto"differentfromthesimplepast?参考答案："Usedto"describespasthabits(e.g.,"Iusedtoplay").Simplepastisforspecificpastactions(e.g.,"Iplayed").7.Whatisaphrasalverb?Giveanexample.参考答案：Aphrasalverbisacombinationofverb+preposition/adverbwithanewmeaning(e.g.,"lookup").8.Howdoyouuse"as"fortime?参考答案："Assoonas"means"rightafter"(e.g.,"AssoonasIarrived,Icalled").五、应用题（总共8题，每题4分，共24分）1.Rewritethefollowingsentenceinthepassivevoice:"Theteachergaveusthebook."参考答案："Thebookwasgiventousbytheteacher."2.Completethesentencewiththecorrectformof"have/has":"She______(live)herefortenyears."参考答案："haslived"3.Transformthesentenceintoaquestion:"Helikespizza."参考答案："Doeshelikepizza?"4.Use"too"or"either"tocompletethesentence:"Idon’tlikecoffee.______(like)it."参考答案："NeitherdoI"(or"Idon’teither").5.Changethesentencetothepresentperfectcontinuous:"Theybuiltthehouselastyear."参考答案："Theyhavebeenbuildingthehouseforayear."6.Correcttheerror:"Iamgotothelibrarytomorrow."参考答案："Iamgoingtothelibrarytomorrow."7.Use"since"tocompletethesentence:"I______(know)him______(2021)."参考答案："haveknown;since"8.Rewritethesentencewithacomparativeadjective:"Thismovieisboring."参考答案："Thismovieismoreboringthanthatone."【标准答案及解析】一、单项选择题1.C2.A3.A4.B5.C6.B7.A8.B9.A10.A二、填空题1.visited2.doesn’tlike;likes3.havelived;since4.Are;amgoing2.waswritten6.haven’tfinished;willstudy7.areplaying8.hasbeenraining;hasbeencanceled3.is;hasbeenworking10.don’tknow;willtry三、判断题1.×2.×3.×4.×5.×6.×7.×8.×9.√10.×四、简答题1."For"measuresduration,"since"indicatesastartingpoint.2.Be+pastparticiple(e.g.,"Theletterwaswritten").3."Too"inpositives(e.g.,"Ilikeit,too")."Either"innegatives(e.g.,"Idon’tlikeit,either").4."Itisimportantto..."(e.g.,"Itisimportanttostudy").5."Lookforwardto+gerund"(e.g.,"Ilookforwardtomeetingyou").6."Usedto"isforpasthabits(e.g.,"Iusedtoplay").Simplepastisforspecif