【2022新课标】2026春新外研版英语八年级下册Unit 4 Helping out单元语法测试卷(含答案)

2026春新外研版英语八年级下册Unit4Helpingout单元语法测试卷姓名：_________班级：_________得分：_________（满分：100分时间：45分钟）语法点：must,may,can等情态动词用法第I卷基础巩固篇（共60分）一、单项选择（共15小题；每小题2分，满分30分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。()1.—Lookattheboyrunningontheplayground.IsheJack?—It______behim.Hehasgonetothelibrary.A.can'tB.mustn'tC.needn'tD.maynot()2.—Whereismom?Ican'tfindheranywhere.—She______beinthegarden.Sheloveswateringtheflowersatthistime.A.mightB.mustC.canD.should()3.—I'mnotfeelingwellaftereatingtheseafood.—You______beallergic(过敏的)toit.You'dbetterseeadoctor.A.mustB.needC.mayD.can()4.—Listen!Thereissomeoneknockingatthedoor.—It______beSusan.Shepromisedtocomeat7pm,andit's7now.A.canB.mustC.needD.may()5.Thelightintheofficeisoff.Theteacher______betherenow.A.mustn'tB.can'tC.shouldn'tD.needn't()6.—IwonderwhereLucyis.—She______beinthelibrary,butI'mnotsure.A.mustB.shouldC.mightD.can()7.—WillJimcometothepartythisweekend?—He______come,butI'mnotsurebecauseheisbusythesedays.A.mustB.shouldC.needD.may()8.—Who'sthatmanoverthere?IsitMr.Smith?—It______behim.Mr.Smithismuchtaller.A.maynotB.can'tC.mustn'tD.needn't()9.—Mom,I'vefinishedmyhomework.CanIwatchTVnow?—You______havefinisheditsoquickly.Letmecheckitfirst.A.mustB.can'tC.needD.may()10.—Howbeautifultheskirtlooks!It______beveryexpensive.—Notreally.Iboughtitatasale.A.canB.mustC.mayD.should()11.—Ican'tfindmykeys.I______haveleftthemintheoffice.—Let'sgoandhavealook.A.mustB.needC.mayD.can()12.—What'sthematterwithTom?Helooksupset.—He______beworriedabouthiscomingexam.A.canB.mustC.needD.should()13.—Willyouanswerthephone?It______beyourmother.—OK,I'mcoming.A.mightB.mustC.canD.should()14.—Isawabigdoginthestreet.It______beverydangerous.—Don'tworry.It'sveryfriendly.A.mustB.canC.needD.should()15.—I'velookedformypeneverywhere,butIcan'tfindit.—You______haveputitinyourschoolbag.Checkitagain.A.canB.needC.mightD.must二、用适当的情态动词填空（共10小题；每小题2分，满分20分）根据句意，用can,can't,may,might,must的适当形式填空。1.Youhavejusthadlunch.You________behungryagainsosoon.2.—Whoisthatgirlwithacamera?—It________beAlice.Shelikestakingphotos.3.—Where'sTony?Isheintheclassroom?—He________bethere.Isawhimreadingthereamomentago.4.Takeanumbrellawithyou.It________rainlater.5.—Look!Someoneiscleaningtheroom.IsitLily?—It________beLily.ShewenttoBeijingyesterday.6.Thebook________beJim'sbecausehisnameisonit.7.—Ican'tfindmymobilephone.—You________haveleftitinthetaxi.I'mnotsure.8.—________Iuseyourdictionaryforawhile?—Ofcourse,hereyouare.9.—IsthatgirloverthereMary?—It________beher.SheismuchtallerthanMary.10.—________youplaythepiano?—Yes,Ican.IlearneditwhenIwasfive.三、句型转换（共5小题；每小题2分，满分10分）根据要求完成句子，每空一词。1.I'msurethatMrs.WangisournewEnglishteacher.（改为同义句）Mrs.Wang________________ournewEnglishteacher.2.It'spossiblethattheywillarriveattheairportat8pm.（改为同义句）They________________attheairportat8pm.3.Thatboycan'tbeMikebecausehehasgonetothelibrary.（改为同义句）Thatboy________________Mikebecausehehasgonetothelibrary.4.ThedictionarymustbeTom's.（改为否定句）Thedictionary________________Tom's.5.Perhapsmyfatherwillcomebackthisweekend.（改为同义句）Myfather________________backthisweekend.第II卷能力提升篇（共40分）四、完形填空（共10小题；每小题2分，满分20分）阅读下面短文，掌握其大意，然后从A、B、C三个选项中选出可以填入空白处的最佳选项。ItwasasunnySundaymorning.Lindawantedtogototheparkwithherfriends.Butshecouldn'tfindhermobilephoneanywhere.Shelookedforiteverywhere,butitwas1found."Where2itbe?"shethought."It3beinmyschoolbag."Shecheckedthebag,buttherewasnophone."I4haveleftitintheclassroomonFriday."ButitwasSunday,andtheschoolwasclosed."MaybeI5callmyphonewithmymom'sphone,"shesaidtoherself.Sheborrowedhermother'sphoneandcalledhernumber.Tohersurprise,sheheardtheringtonecomingfromthesofa.Shewentthereandfoundherphonebetweenthecushions."You6bemorecarefulnexttime,"hermothersaid."You'reright,mom.I7forgettoputitinasafeplaceagain."Atthepark,Lindametherfriends.Theywereplayinggames.Oneofherfriends,Amy,lookedworried."What'swrong?"Lindaasked."Ilostmywallet.It8besomewhereinthepark,butIcan'tfindit,"Amysaid."Don'tworry.It9beinthegrass.Let'slookforittogether,"Lindasaid.Afterawhile,theyfoundthewalletunderabench.Amywasveryhappy."Thankyousomuch!You10beatruefriend!"()1.A.neverB.alwaysC.sometimes()2.A.mayB.mustC.can()3.A.mustB.mightC.can()4.A.mustB.mightC.can()5.A.mustB.shouldC.need()6.A.canB.mayC.must()7.A.won'tB.mustn'tC.needn't()8.A.mustB.canC.might()9.A.mustB.mightC.can()10.A.mustB.needC.can五、阅读理解（共5小题；每小题2分，满分10分）根据短文内容，判断句子正（T）误（F）。Weusemodalverbslikecan,may,must,andmighttoshowhowsureweareaboutsomething.Whenweare100%suresomethingistrue,weusemust.Forexample,"Thelightison.Hemustbeathome."Whenweare100%suresomethingisnottrue,weusecan't.Forexample,"HejustleftforBeijing.Hecan'tbehere."Whenwearenot100%sure,weusemay,might,orcould.Thesewordsmeansomethingispossible.Forexample,"Imaygotothepartytonight,butI'mnotsure."Mightislesssurethanmay.Forexample,"Itmightrainlater,buttheweatherreportsaysitwillbesunny."Wealsousecantotalkaboutability.Forexample,"Shecanspeakthreelanguages."Andweusemusttotalkaboutrulesornecessity.Forexample,"Youmustwearauniformatschool."So,choosingtherightmodalverbisimportant.Ithelpsusexpressexactlywhatwemean.()1.Whenweare100%suresomethingistrue,weuse"must".()2."Can't"meanssomethingispossible.()3."Might"showswearelesssurethan"may".()4."Can"canbeusedtotalkaboutability.()5.Modalverbscannotbeusedtotalkaboutrules.六、书面表达（共1题，满分10分）假设你是李华，你在公园里捡到了一个书包。请你根据以下提示，用英语写一段话（60词左右），推测书包的主人是谁。要求使用本单元所学的表推测的情态动词（must,may,might,can't等）。提示：1.书包是蓝色的，里面有一本英语书和一些文具；2.书上有"Lucy"的名字，所以可能是Lucy的；3.但是Lucy今天去了北京，所以不可能是她的；4.也可能是其他学生的，因为附近有一所学校。参考答案一、单项选择1.A（can't表示有把握的否定推测）2.A（might表示可能性不大的推测）3.C（may表示可能性推测）4.B（must表示有把握的肯定推测）5.B（can't表示有把握的否定推测）6.C（might表示不确定的推测）7.D（may表示可能性推测）8.B（can't表示有把握的否定推测）9.A（must表示肯定语气）10.B