2026年天津市人教版四年级英语下册第9单元语法练习题

2026年天津市人教版四年级英语下册第9单元语法练习题一、单项选择题（每题2分，共20分）1.Inthe9thunitofthe2026TianjinPEPGrade4Englishtextbook,studentslearntousethepresentcontinuoustensetodescribeactionshappeningrightnow.Whichsentencecorrectlyusesthistense?A.Shereadabookyesterday.B.Thecatissleepingonthesofa.C.Theywillplayfootballtomorrow.D.Hehaseatenbreakfastalready.Answer:BExplanation:Thepresentcontinuoustense(is/am/are+verb-ing)isusedtodescribeactionshappeningatthemomentofspeaking.OptionB("Thecatissleepingonthesofa")correctlyuses"issleeping"toindicateanongoingaction.OptionAusesthesimplepast("read"),optionCusesthefuturetense("willplay"),andoptionDusesthepresentperfect("haseaten"),allofwhichdonotmatchthepresentcontinuoustenserequirement.2.The9thunitfocusesonadjectivesthatdescribefeelings.Whichsentencecorrectlyusesanadjectivetodescribeafeeling?A.Sheisveryhappybecauseshegotagoodgrade.B.Heisgototheparknow.C.Thegirlishavearedballoon.D.Theyisplayinghappily.Answer:AExplanation:Adjectivesdescribenounsorpronouns,andinthiscase,theydescribefeelings.OptionA("Sheisveryhappy")correctlyusestheadjective"happy"todescribeherfeeling.OptionBhasagrammaticalerror("isgo"shouldbe"isgoing"),optionChasaverberror("ishave"shouldbe"has"),andoptionDhasasubject-verbagreementerror("Theyis"shouldbe"Theyare").3.Inthe9thunit,studentslearntouse"too"and"either"toexpressagreementordisagreement.Whichsentencecorrectlyuses"too"?A.Ilikeicecream,too.B.Shedoesnotlikeapples,either.C.Heisnottired,too.D.Theygotoschooleveryday,too.Answer:AExplanation:"Too"isusedtoagreewithapositivestatement.OptionA("Ilikeicecream,too")correctlyagreeswithsomeonewholikesicecream.OptionBuses"either"incorrectly(shouldbe"also"orrestructured),optionChasagrammaticalerror("isnottired,too"shouldbe"isnottiredeither"),andoptionDisunrelatedtotheuseof"too."4.The9thunitintroducesthestructure"subject+be+adjective+and+adjective."Whichsentencecorrectlyusesthisstructure?A.Theboyistallandfat.B.Sheissmartandhappy.C.Theyarelazyandboring.D.Heisfunnyandtall.Answer:BExplanation:Thestructure"subject+be+adjective+and+adjective"isusedtodescribetwoqualitiesofthesamesubject.OptionB("Sheissmartandhappy")correctlyusestwoadjectives("smart"and"happy")todescribe"she."OptionAandDusethesameadjectivetwice("tall"),optionCusesnegativeadjectives("lazy"and"boring"),andoptionDhasarepetitionerror.5.Inthe9thunit,studentslearntouse"so"toshowreason.Whichsentencecorrectlyuses"so"?A.Itisraining,sowestayathome.B.Sheistiredbecauseshestudyallnight.C.Helikescoffee,sohedrinkiteverymorning.D.Theyarelate,sotheymissthebus.Answer:AExplanation:"So"isusedtoconnectacauseandaneffect.OptionA("Itisraining,sowestayathome")correctlyshowsthattherain(cause)leadstostayinghome(effect).OptionBhasaverberror("study"shouldbe"studies"),optionChasagrammaticalerror("hedrink"shouldbe"hedrinks"),andoptionDisgrammaticallycorrectbutnotthebestexampleof"so"usagecomparedtoA.6.The9thunitincludesthesentencestructure"Wh-question+auxiliaryverb+subject+mainverb?"Whichquestioncorrectlyusesthisstructure?A.Wheredoyougotoschool?B.Whatisyourname?C.Doesshelikepizza?D.Howoldarethey?Answer:CExplanation:Thestructure"Wh-question+auxiliaryverb+subject+mainverb?"isusedforyes/noquestions.OptionC("Doesshelikepizza?")correctlyuses"Does"(auxiliaryverb)+"she"(subject)+"like"(mainverb).OptionAandDusesimpleWh-questionswithoutauxiliaryverbs,optionBisasimpleWh-questionwithoutauxiliaryverbs,andoptionCistheonlyonefollowingthecorrectstructure.7.Inthe9thunit,studentslearntouse"because"togivereasons.Whichsentencecorrectlyuses"because"?A.IamhungrybecauseIatebreakfast.B.Shewenttothestorebecausesheneedmilk.C.Heistiredbecauseheworkallday.D.Theyarehappybecausetheywonaprize.Answer:DExplanation:"Because"introducesareasonforanaction.OptionD("Theyarehappybecausetheywonaprize")correctlyuses"because"toexplainwhytheyarehappy.OptionAisillogical("atebreakfast"doesnotcausehunger),optionBhasaverberror("need"shouldbe"needs"),andoptionChasaverberror("work"shouldbe"worked").8.The9thunitintroducestheuseof"can"toexpressability.Whichsentencecorrectlyuses"can"?A.Shecanplaythepianoverywell.B.Hecangototheparktomorrow.C.Theycanisswimmingnow.D.Icannotopenthedoor.Answer:AExplanation:"Can"isusedtoexpressability.OptionA("Shecanplaythepianoverywell")correctlyuses"can"todescribeherability.OptionBusesthefuturetense("willgo"),optionChasagrammaticalerror("canisswimming"shouldbe"canswim"),andoptionDuses"cannot"(shouldbe"cannot"or"can't").9.Inthe9thunit,studentslearntouse"too"and"also"toaddinformation.Whichsentencecorrectlyuses"also"?A.Ilikeapples,too.B.Sheistired,andshealsogotobedearly.C.Hecanswim,andhealsoplaybasketball.D.Theyarehappy,too.Answer:CExplanation:"Also"isusedtoaddinformationtoapositivestatement.OptionC("Hecanswim,andhealsoplaybasketball")correctlyuses"also"toaddanotherability.OptionAandDuse"too,"optionBhasagrammaticalerror("go"shouldbe"goes"),andoptionCistheonlycorrectuseof"also."10.The9thunitincludesthestructure"subject+be+not+adjective."Whichsentencecorrectlyusesthisstructure?A.Thegirlisnottall.B.Heisnothappy.C.Theyarenotgotoschool.D.Sheisnothaveabook.Answer:BExplanation:Thestructure"subject+be+not+adjective"isusedtoformnegativesentences.OptionB("Heisnothappy")correctlyuses"isnot"+"happy."OptionAisgrammaticallycorrectbutlesscommoninthiscontext,optionChasaverberror("arenotgo"shouldbe"arenotgoing"),andoptionDhasaverberror("isnothave"shouldbe"doesnothave").二、填空题（每空2分，共20分）1.Inthe9thunit,welearntouse_______todescribeactionshappeningrightnow.Answer:thepresentcontinuoustenseExplanation:Thepresentcontinuoustense(is/am/are+verb-ing)isintroducedinthisunittodescribeongoingactions.Forexample,"Thecatissleeping."2.Theunitteachesstudentstouse_______toshowagreementwithapositivestatement.Answer:tooExplanation:"Too"isusedafterapositivestatementtoagree.Forexample,"Ilikepizza,too."3.Weuse_______toconnectacauseandaneffectinasentence.Answer:soExplanation:"So"introducesaresult.Forexample,"Itisraining,sowestayathome."4.Thestructure"Wh-question+auxiliaryverb+subject+mainverb?"isusedfor_______questions.Answer:yes/noExplanation:Thisstructureformsyes/noquestions.Forexample,"Doesshelikeapples?"5._______isusedtogivereasonsforanactioninasentence.Answer:becauseExplanation:"Because"introducesareason.Forexample,"Sheistiredbecauseshestudiedlate."6.Theunitintroducestheuseof_______toexpressability.Answer:canExplanation:"Can"isusedtodescribeabilities.Forexample,"Hecanrunfast."7.Weuse_______toaddinformationtoapositivestatement.Answer:alsoExplanation:"Also"addsinformation.Forexample,"Shecansing,andshealsodances."8.Thestructure"subject+be+not+adjective"isusedtoform_______sentences.Answer:negativeExplanation:Thisstructureformsnegativesentences.Forexample,"Heisnothappy."9.Intheunit,studentslearntouse_______todescribefeelings.Answer:adjectivesExplanation:Adjectiveslike"happy,""tired,"and"bored"areusedtodescribefeelings.10.Theunitincludesthesentencestructure"subject+be+adjective+and+adjective"todescribetwoqualitiesofthesamesubject.Answer:twoExplanation:Thisstructureusestwoadjectives.Forexample,"Sheissmartandkind."三、判断题（每题2分，共20分）1.Thepresentcontinuoustenseisusedtodescribefinishedactionsinthepast.Answer:FalseExplanation:Thepresentcontinuoustensedescribesactionshappeningnow,notfinishedactionsinthepast(whichwouldusethesimplepasttense).2."So"isusedtoaddinformationtoasentence,similarto"also."Answer:FalseExplanation:"So"introducesaresult,while"also"addsinformation.Forexample,"Heistired,sohesleeps"(result)vs."Hecanswim,andhealsodances"(addition).3.Thestructure"Wh-question+auxiliaryverb+subject+mainverb?"canbeusedforbothyes/noandWh-questions.Answer:TrueExplanation:Thisstructureformsyes/noquestions(e.g.,"Doesshelikeapples?")andWh-questions(e.g.,"Wheredoesshelive?").4."Can"isusedtoexpressability,while"may"isusedforpermission.Answer:FalseExplanation:"Can"expressesability(e.g.,"Hecanswim"),while"may"isusedforpermission(e.g.,"MayIgotothebathroom?").5.Theunitteachesstudentstouse"because"toshowreasons,butnotresults.Answer:TrueExplanation:"Because"introducesareason,notaresult."So"isusedforresults.6.Thestructure"subject+be+not+adjective"isthesameasthesimplenegativesentence"subject+do/doesnot+verb."Answer:FalseExplanation:Thefirststructureuses"be+not"(e.g.,"Heisnothappy"),whiletheseconduses"do/doesnot"(e.g.,"Hedoesnotlikeapples").7."Too"and"either"areinterchangeableinallsentences.Answer:FalseExplanation:"Too"isusedafterpositivestatements(e.g.,"Ilikeapples,too"),while"either"isusedafternegativestatements(e.g.,"Idonotlikeapples,either").8.Adjectiveslike"happy,""tired,"and"bored"areintroducedinthe9thunittodescribefeelings.Answer:TrueExplanation:Theunitincludesadjectivesusedtodescribefeelings,suchas"happy"and"tired."9.Theunitteachesstudentstouse"can"toexpressfutureplans,suchas"Icangototheparktomorrow."Answer:FalseExplanation:"Can"expressesability,notfutureplans.Futureplansuse"will"(e.g.,"Iwillgototheparktomorrow").10.Thestructure"subject+be+adjective+and+adjective"isusedtodescribetwodifferentsubjects.Answer:FalseExplanation:Thisstructuredescribestwoqualitiesofthesamesubject.Forexample,"Sheissmartandkind"(nottwodifferentsubjects).四、简答题（每题2分，共16分）1.Explainthedifferencebetween"too"and"either"inasentence.Answer:"Too"isusedafterapositivestatementtoagreeoraddinformation,while"either"isusedafteranegativestatementtoagreeoraddinformation.Forexample,"Ilikeicecream,too"(positive)vs."Idonotlikeicecream,either"(negative).2.Howdoyouformanegativesentenceusingthepresentcontinuoustense?Answer:Toformanegativesentenceinthepresentcontinuoustense,use"subject+be+not+verb-ing."Forexample,"Sheisnotsleeping."3.Whatisthepurposeofusing"because"inasentence?Answer:"Because"introducesareasonorcauseforanaction.Forexample,"Heistiredbecausehestudiedlate."Itexplainswhysomethingishappening.4.Giveanexampleofasentenceusing"can"toexpressability.Answer:"Hecanplaythepianoverywell."Thisshowshisabilitytoplaythepiano.5.Howdoyouformaquestionusingthestructure"Wh-question+auxiliaryverb+subject+mainverb?"Answer:Forexample,"Wheredoesshelive?"Here,"Where"istheWh-word,"does"istheauxiliaryverb,"she"isthesubject,and"live"isthemainverb.6.Whatisthedifferencebetween"so"and"because"?Answer:"So"introducesaresultoreffect,while"because"introducesareasonorcause.Forexample,"Sheislate,soshemissedthebus"(result)vs."Sheislatebecauseshewokeuplate"(cause).7.Howdoyouformasentenceusing"also"toaddinformation?Answer:Use"also"afterapositivestatementtoaddmoreinformation.Forexample,"Hecanswim,andhealsodances."8.Whyisthestructure"subject+be+adjective+and+adjective"useful?Answer:Thisstructureallowsyoutodescribetwoqualitiesofthesamesubjectinonesentence.Forexample,"Sheissmartandkind,"whichconciselycombinestwoadjectives.五、应用题（每题4分，共24分）1.Rewritethefollowingsentenceusingthepresentcontinuoustense:"Shereadabookyesterday."Answer:"Sheisreadingabooknow."Explanation:Thesimplepast("read")ischangedtothepresentcontinuous("isreading")todescribeanongoingaction(ifthecontextimpliesthepresent).Ifthecontextisstrictlypast,theoriginaliscorrect,butthequestionasksforpresentcontinuous,sotherewriteassumesashiftincontext.2.Completethesentencewith"too,""either,"or"also":"Idonotlikechocolate.Mybrotherdoesnotlikeit_______."Answer:"either"Explanation:Sincethefirstpartisnegative,"either"isusedtoagreewiththenegativestatement.Thefullsentenceis,"Idonotlikechocolate.Mybrotherdoesnotlikeiteither."3.Use"because"tocompletethesentence:"Sheistired._______shestudiedallnight."Answer:"Because"Explanation:"Because"introducesthereasonforhertiredness.Thefullsentenceis,"Sheistiredbecauseshestudiedallnight."4.Changethefollowingsentencetoanegativesentenceusingthepresentcontinuoustense:"Heisplayingfootball."Answer:"Heisnotplayingfootball."Explanation:Toformanegativesentence,add"not"afterthe"be"verb.Thefullsentenceis,"Heisnotplayingfootball."5.Writeasentenceusing"can"toexpressability:Answer:"IcanspeakEnglishfluently."Explanation:ThissentenceshowstheabilitytospeakEnglish.6.Use"so"toconnectthefollowingtwosentences:"Itisraining.Westayathome."Answer:"Itisraining,sowestayathome."Explanation:"So"connectsthecause(raining)totheeffect(stayinghome).7.Rewritethefollowingsentenceusing"also":"Helikesapples.Helikesbananas."Answer:"Helikesapples,andhealsolikesbananas."Explanation:"Also"addsthesecondpreferencetothefirst.8.Describetwoqualitiesofthesamepersonusingthestructure"subject+be+adjective+and+adjective":Answer:"Sheistallandsmart."Explanation:Thissentencedescribestwoqualities(tallandsmart)ofthesameperson.【标准答案及解析】一、单项选择题1.BExplanation:Thepresentcontinuoustenseisusedforongoingactions.OptionB("Thecatissleeping")istheonlycorrectexample.2.AExplanation:Adjectivesdescribefeelings.OptionA("Sheisveryhappy")correctlyuses"happy"todescribeafeeling.3.AExplanation:"Too"agreeswithapositivestatement.OptionA("Ilikeicecream,too")iscorrect.4.BExplanation:Thestructure"subject+be+adjective+and+adjective"isusedfortwoqualitiesofthesamesubject.OptionB("Sheissmartandhappy")iscorrect.5.AExplanation:"So"connectscauseandeffect.OptionA("Itisraining,sowestayathome")iscorrect.6.CExplanation:Thestructure"Wh-question+auxiliaryverb+subject+mainverb?"isusedforyes/noquestions.OptionC("Doesshelikepizza?")iscorrect.7.DExplanation:"Because"introducesareason.OptionD("Theyarehappybecausetheywonaprize")iscorrect.8.AExplanation:"Can"expressesability.OptionA("Shecanplaythepianoverywell")iscorrect.9.CExplanation:"Also"addsinformation.OptionC("Hecanswim,andhealsoplaybasketball")iscorrect.10.BExplanation:Thestructure"subject+be+not+adjective"isusedfornegativesentences.OptionB("Heisnothappy")iscorrect.二、填空题1.thepresentcontinuoustenseExplanation:Theunitteachesongoingactions.2.tooExplanation:"Too"agreeswithpositivestatements.3.soExplanation:"So"showscauseandeffect.4.yes/noExplanation:Thestructureformsyes/noquestions.5.becauseExplanation:"Because"introducesreasons.6.canExplanation:"Can"expressesability.7.alsoExplanation:"Also"addsinformation.8.negativeExplanation:Thestructureformsnegativesentences.9.adjectivesExplanation:Adjectivesdescribefeelings.10.twoExplanation:Thestructureusestwoadjectives.三、判断题1.FalseExplanation:Thepresentcontinuoustensedescribesongoingactions,notfinishedpastactions.2.FalseExplanation:"So"introducesresults,while"also"addsinformation.3.TrueExplanation:Thestructureformsbothyes/noandWh-questions.4.FalseExplanation:"Can"expressesability,while"may"isforpermission.5.TrueExplanation:"Because"introducesreasons,notresults.6.FalseExplanation:"Be+not"vs."do/doesnot+verb."7.FalseExplanation:"Too"and"either"arenotinterchangeable.8.TrueExplanation:Theunitincludesadjectivesforfeelings.9.FalseExplanation:"Can"expressesability,notfutureplans.10.FalseExplanation:Thestructuredescribestwoqualitiesofthesamesubject.四、简答题1."Too"isusedafterapositivestatementtoagreeoraddinformation(e.g.,"Ilikeicecream,too")."Either"isusedafteranegativestatementtoagreeoraddinformation(e.g.,"Idonotlikeicecream,either").2.Toformanegativesentenceinthepresentcontinuoustense,use"subject+be+not+verb-ing."Forexample,"Sheisnotsleepi