2025-2026年重庆市北师大版五年级英语下册第3单元语法练习题

2025-2026年重庆市北师大版五年级英语下册第3单元语法练习题一、单项选择题（总共10题，每题2分，共20分）1.根据第3单元语法内容，选择正确的句子结构。Thecatissleepingonthebed.A.主语+系动词+现在分词+地点状语B.主语+系动词+过去分词+地点状语C.主语+助动词+现在分词+地点状语D.主语+系动词+不定式+地点状语解析：该句为一般现在时，描述状态，"issleeping"为现在进行时，但此处需注意题目可能混淆时态，正确结构为"主语+系动词+现在分词+地点状语"，但原句时态错误，实际应为"主语+be动词+现在分词+地点状语"，选项A最接近正确结构，但需注意题目可能考查时态错误，实际正确答案应为"主语+be动词+现在分词+地点状语"，但选项中未提供be动词，故选择A。2.根据第3单元语法内容，选择正确的反义疑问句形式。Theyareplayingfootball.A.Aretheyplayingfootball?B.Istheyplayingfootball?C.Dotheyplayfootball?D.Aretheyplayfootball?解析：反义疑问句需与主句时态和主语保持一致，原句为一般现在时复数，故反义疑问句应为"Aretheyplayingfootball?"，选项A正确，选项B主谓不一致，选项C时态错误，选项D动词形式错误。3.根据第3单元语法内容，选择正确的宾语从句连接词。Ithink______happytoday.A.isB.amC.areD.be解析：宾语从句需使用陈述语序，且根据主句时态和从句主语"我"，应使用"am"，但题目可能考查连接词混淆，选项A、C、D均为be动词形式，但需注意原句应为"IthinkIamhappytoday"，但题目未提供"I"，故选择A。4.根据第3单元语法内容，选择正确的情态动词用法。Youmust______homeworkeveryday.A.doB.doesC.doingD.did解析：情态动词must后接动词原形，故正确答案为"A.do"，但题目可能考查时态混淆，选项B为第三人称单数形式，选项C为动名词，选项D为过去式，均不符合情态动词用法。5.根据第3单元语法内容，选择正确的比较级形式。Thisbookis______thanthatbook.A.moreinterestingB.interestingmoreC.mostinterestingD.interestinger解析：比较级需使用"形容词/副词+than"，故正确答案为"A.moreinteresting"，选项B语序错误，选项C为最高级，选项D为错误形式。6.根据第3单元语法内容，选择正确的祈使句否定形式。Don't______intheclassroom.A.talkB.talksC.talkingD.talked解析：祈使句否定形式为"Don't+动词原形"，故正确答案为"A.talk"，选项B为第三人称单数，选项C为动名词，选项D为过去式。7.根据第3单元语法内容，选择正确的定语从句关系词。Thegirl______Ispeaktoismyfriend.A.whoB.whomC.thatD.which解析：关系代词指代人且在从句中作宾语，应使用"whom"，但题目可能考查关系代词混淆，选项A、C、D均可指代人，但"whom"最符合语法规则，但需注意原句应为"ThegirlwhomIspeaktoismyfriend"，但题目未提供"Ispeakto"，故选择C。8.根据第3单元语法内容，选择正确的虚拟语气用法。IfI______rich,Iwouldbuyacar.A.amB.beC.wereD.is解析：虚拟语气条件句主语从句需使用过去式，故正确答案为"C.were"，选项A、D为一般现在时，选项B为be动词原形，不符合虚拟语气规则。9.根据第3单元语法内容，选择正确的被动语态形式。Thewindowwasbrokenbythewind.A.isbrokenB.arebrokenC.wasbrokeD.werebroken解析：被动语态需使用"be动词+过去分词"，且主语"window"为单数，故正确答案为"C.wasbroke"，但需注意题目可能考查be动词形式，实际应为"wasbroken"，但选项中未提供，故选择C。10.根据第3单元语法内容，选择正确的非谓语动词形式。Ienjoy______music.A.listentoB.listeningtoC.listenedtoD.listensto解析：enjoy后接动名词，故正确答案为"B.listeningto"，选项A、C为不定式或过去分词形式，选项D为第三人称单数形式。二、填空题（总共10题，每题2分，共20分）1.Fillintheblankwiththecorrectformoftheverb.They______(go)totheparkyesterday.参考答案：went解析：根据时间状语"yesterday"，应使用一般过去时，go的过去式为went。2.Fillintheblankwiththecorrectword.Thisisthe______interestingbookIhaveeverread.参考答案：most解析：最高级前需使用"the+most+形容词"，此处为最高级。3.Fillintheblankwiththecorrectformoftheverb.Ifit______(rain)tomorrow,wewillstayathome.参考答案：rains解析：虚拟语气条件句主语从句需使用一般现在时。4.Fillintheblankwiththecorrectword.Sheis______thanherbrother.参考答案：taller解析：比较级前需使用形容词，此处为比较级。5.Fillintheblankwiththecorrectformoftheverb.Thechildren______(play)footballnow.参考答案：areplaying解析：根据时间状语"now"，应使用现在进行时。6.Fillintheblankwiththecorrectword.This______mypen.参考答案：is解析：系动词"is"用于第三人称单数主语"this"。7.Fillintheblankwiththecorrectformoftheverb.Youmust______(be)ontime.参考答案：be解析：情态动词must后接动词原形。8.Fillintheblankwiththecorrectword.Heisgoodat______English.参考答案：speak解析：begoodat后接动词原形。9.Fillintheblankwiththecorrectformoftheverb.Theywere______(watch)TVwhenIcamehome.参考答案：watching解析：根据时间状语"whenIcamehome"，应使用过去进行时。10.Fillintheblankwiththecorrectword.Thisisthe______dayoftheyear.参考答案：best解析：最高级前需使用"the+most/least+形容词"，此处为最高级。三、判断题（总共10题，每题2分，共20分）1.Thesentence"Sheissinging"isinthepresentcontinuoustense.(正确)解析：现在进行时结构为"be动词+现在分词"，该句符合规则。2.Thesentence"Theydon'tlikeapples"isinthesimplepresenttense.(正确)解析：简单现在时否定形式为"主语+don't/doesn't+动词原形"，该句符合规则。3.Thesentence"Ifitrains,Iwillgo"isinthefirstconditional.(正确)解析：第一条件句结构为"If+一般现在时，主语+will+动词原形"，该句符合规则。4.Thesentence"Thisisthemostbeautifulflower"isinthesuperlativedegree.(正确)解析：最高级前需使用"the+most/least+形容词"，该句符合规则。5.Thesentence"Heisbeinghelped"isinthepassivevoice.(正确)解析：被动语态结构为"be动词+过去分词"，该句符合规则。6.Thesentence"Ienjoywatchingmovies"isinthegerundform.(正确)解析：enjoy后接动名词，该句符合规则。7.Thesentence"Don'tbelate"isintheimperativesentence.(正确)解析：祈使句否定形式为"Don't+动词原形"，该句符合规则。8.Thesentence"ThegirlwhoIspeaktoismyfriend"isintherelativeclause.(正确)解析：定语从句结构为"关系代词+从句"，该句符合规则。9.Thesentence"IfIwererich,Iwouldbuyacar"isinthesubjunctivemood.(正确)解析：虚拟语气条件句主语从句需使用过去式，该句符合规则。10.Thesentence"TheywereplayingfootballwhenIcamehome"isinthepastcontinuoustense.(正确)解析：过去进行时结构为"be动词+过去分词"，该句符合规则。四、简答题（总共8题，每题2分，共16分）1.Explainthestructureofthepresentcontinuoustense.参考答案：Presentcontinuoustensestructureis"beverb(am/is/are)+presentparticiple(-ingform)".Itisusedtodescribeactionshappeningatthetimeofspeakingoraroundthetimeofspeaking.Forexample,"Sheisreadingabook."解析：该题考查现在进行时结构，需说明"be动词+现在分词"的构成，并举例说明用法。2.Explainthedifferencebetween"must"and"haveto".参考答案："Must"isamodalverbexpressingstrongnecessityorobligation,while"haveto"isasemi-modalverbformedwith"have+to".Forexample,"Youmustfinishyourhomework."vs."Youhavetofinishyourhomework."解析：该题考查情态动词用法，需说明"must"和"haveto"的区别，并举例说明。3.Explainthestructureofthefirstconditional.参考答案：Firstconditionalstructureis"If+simplepresenttense,mainclause+will+baseformofverb".Itisusedtotalkaboutrealorpossiblefuturesituations.Forexample,"Ifitrainstomorrow,wewillcancelthepicnic."解析：该题考查第一条件句结构，需说明"If+一般现在时，主语+will+动词原形"的构成，并举例说明用法。4.Explainthedifferencebetween"alotof"and"many".参考答案："Alotof"canbeusedwithbothcountableanduncountablenouns,while"many"isusedonlywithcountablenouns.Forexample,"Alotofpeople"vs."Manypeople."解析：该题考查量词用法，需说明"alotof"和"many"的区别，并举例说明。5.Explainthestructureofthepassivevoice.参考答案：Passivevoicestructureis"beverb(am/is/are/was/were)+pastparticiple".Itisusedwhenthesubjectisthereceiveroftheaction.Forexample,"Thebookwaswrittenbyhim."解析：该题考查被动语态结构，需说明"be动词+过去分词"的构成，并举例说明用法。6.Explainthefunctionofthegerund.参考答案：Gerundisthe-ingformofaverbusedasanoun.Itcanbethesubject,object,orcomplementofasentence.Forexample,"Readingismyhobby."解析：该题考查动名词用法，需说明动名词作名词的功能，并举例说明。7.Explainthestructureoftheimperativesentence.参考答案：Imperativesentencestructureis"baseformofverb"forpositivesentencesor"Don't+baseformofverb"fornegativesentences.Itisusedtogivecommandsorrequests.Forexample,"Closethedoor."vs."Don'tclosethedoor."解析：该题考查祈使句结构，需说明肯定和否定形式的构成，并举例说明用法。8.Explainthefunctionoftherelativeclause.参考答案：Relativeclauseisadependentclausethatmodifiesanoun.Itisintroducedbyrelativepronouns(who,whom,whose,which,that)orrelativeadverbs(when,where,why).Forexample,"ThegirlwhoIspeaktoismyfriend."解析：该题考查定语从句功能，需说明定语从句的作用和引导词，并举例说明。五、应用题（总共8题，每题4分，共24分）1.Rewritethesentence"Sheisreadingabook"inthepastcontinuoustense.参考答案：Shewasreadingabook.解析：将现在进行时改为过去进行时，需将"be动词"改为过去式"was"，"现在分词"改为"过去分词"。2.Rewritethesentence"Theywillgototheparktomorrow"inthesimplepresenttense.参考答案：Theygototheparktomorrow.解析：将一般将来时改为一般现在时，需将"will"去掉，动词"willgo"改为"go"。3.Rewritethesentence"Ifitrains,wewillcancelthepicnic"inthepasttense.参考答案：Ifitrained,wewouldcancelthepicnic.解析：将第一条件句改为过去时，需将"一般现在时"改为"一般过去时"，"will"改为"would"。4.Rewritethesentence"Thisisthemostbeautifulflower"inthecomparativedegree.参考答案：Thisisthemostbeautifulflowerinthegarden.解析：将最高级改为比较级，需添加比较范围"比较范围"，但题目未要求，故保持原句。5.Rewritethesentence"Heisbeinghelped"intheactivevoice.参考答案：Thepeoplehelpedhim.解析：将被动语态改为主动语态，需将"主语"改为"动作执行者"，"be动词+过去分词"改为"动词原形+宾语"。6.Rewritethesentence"Ienjoywatchingmovies"inthepassivevoice.参考答案：Moviesareenjoyedbyme.解析：将主动语态改为被动语态，需将"主语"改为"动作承受者"，"动词原形"改为"be动词+过去分词"。7.Rewritethesentence"Don'tbelate"inthepositiveform.参考答案：Beontime.解析：将否定祈使句改为肯定祈使句，需将"Don't"去掉，动词"belate"改为"beontime"。8.Rewritethesentence"ThegirlwhoIspeaktoismyfriend"inasimplerform.参考答案：ThegirlIspeaktoismyfriend.解析：简化定语从句，去掉"关系代词"但保持从句功能，但题目未要求，故保持原句。【标准答案及解析】一、单项选择题1.A2.A3.A4.A5.A6.A7.C8.C9.C10.B二、填空题1.went2.most3.rains4.taller5.areplaying6.is7.be8.speak9.watching10.best三、判断题1.√2.√3.√4.