小学英语情态动词知识点及练习

小学英语情态动词知识点及练习小学英语情态动词知识点及练习小学英语情态动词知识点及练习小学英语情态动词知识点及练习编制仅供参考审核批准生效日期地址：电话：传真:邮编:情态动词【知识要点】:情态动词（Modalverbs）本身有一定的词义，表示语气的单词。但是不能独立作谓语，只能和动词原形一起构成谓语。情态动词用在行为动词前，表示说话人对这一动作或状态的看法或主观设想。情态动词虽然数量不多，但用途广泛，主要有下列：can(could),may(might),must,need,oughtto,dare(dared),shall(should),will(would)mustnot.情态动词无人称和数的变化，情态动词后面跟的动词须用原形，否定式构成是在情态动词后面加"not"。疑问形式是将情态动词提至主语前。个别情态动词有现在式和过去式两种形式，过去式用来表达更加客气，委婉的语气，时态性不强，可用于过去，现在或将来。情态动词属非及物动词，故没有被动语态。【典型例题】:【专题一】:can和could的用法【例1】Canyouliftthisheavybox?(体力)【解析】表示能力(体力、知识、技能)【练习】1.Maryspeakthreelanguages.(知识)2.youskate?(技能)此时可用beableto代替。Can只有一般现在时和一般过去式;而beableto则有更多的时态。I’llnotbeabletocomethisafternoon.当表示“经过努力才得以做成功某事”时应用beableto,不能用Can。【例2】-----CanIgonow?

-----Yes,youcan./No,youcan’t.【解析】表示请求和允许。此时可与may互换。在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。【练习】----Icometoseeyoutomorrow?

----Yes,you.----No,you/I’mafraidnot.【例3】Canthisbetrue?

【解析】表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。【练习】Thisbedonebyhim.Howthisbetrue?

【专题二】may和might的用法：【例1】----Might/MayIsmokeinthisroom?

----No,youmustn’t.【解析】表示请求和允许。might比may语气更委婉,而不是过去式。否定回答时可用can’t或mustn’t,表示“不可以,禁止”。用MayI...

征徇对方许可时比较正式和客气,而用CanI...

在口语中更常见。【练习】----Itakethisbookoutoftheroom?

----Yes,you.No,you【例2】Mayyousucceed!【解析】用于祈使句,表示祝愿。【例3】Hemay/mightbeverybusynow.【解析】表示推测、可能性(不用于疑问句)。might不是过去式,它所表示的可能性比may小。【练习】1.Yourmothernotknowthetruth.2.Heverybusynow.他现在可能很忙。【专题三】must和haveto的用法：【例1】Themanbeourteacher。那个人一定是我们的老师。【例2】Istudyhardbecauseofmydream.为了我的梦想我必须努力学习。【例3】1.Youcomeintime.你必须准时过来【解析】：must表示必须、必要。表示主观对事物的推测时，意为想必、一定，只用于肯定句中;表推测时，情态动词与动词原形(常为be动词)连用。而haveto强调客观需要。【练习】:1.Herplayisboring,Igonow.2.Yourmotherbewaitingforyounow.3.Igohome,becausemyfatherisill.【例4】---Mustwehandinourexercisebookstoday?

---Yes,you---No,you【解析】：在回答由must引出的问句时，如果是否定的，不能用mustn’t,而用needn’t,don’thaveto.must是说话人的主观看法,而haveto则强调客观需要。【练习】:---Musthegotoschoolnow?

---Yes,he---No,he.【专题四】should及其否定式用法【例1】：Ishouldhelpherbecausesheisintrouble.【解析】：should表示应该、劝告、建议和命令。【练习】:Yougotoclassrightaway.Iopenthewindow?

【专题四】need的用法【例1】：Youneedn’tcomesoearly.【解析】need作情态动词用时,常用于疑问句、否定句。在肯定句中一般用must,haveto,oughtto,should代替【练习】----NeedIfinishtheworktoday?

----Yes,you/No,you【专题五】should的用法【例1】Ishouldhelpherbecausesheisintrouble.【解析】should表示应该【练习】Youtakecareofthebaby.【例2】Youshouldgotoclassrightaway.【解析】表示劝告、建议和命令。在疑问句中常用should。【练习】Iopenthewindow？

【专题六】will和would的用法【例1】Iwilldoanythingforyou.【解析】表示询问，请求,将要。【练习】1.youpassmethebook?

2.Shegotothelibrary.【例2】wouldyoutellmethewaytotheschool?【解析】表示过去的意愿或委婉提问自我检测(一)用适当的情态动词填空。1.MustIborrowthebookwithmyIDcardNo,you2.Iuseyourcar

Yes,you3.Igohomenow

No,youstayhereandwaitfortheteacher.4.Mymotherisill.Istayathomeandlookafterher.5.Isendanemailtomyfriend.6.Youtakemoreexercise.7.youtellmehowtogettothePark?

8.Wehelpeachother.9.youliketogofishingwithme?

10.weplayfootballthisafternoon?

(二)按要求改写句子。1.Icanrunfast.(否定句)Ifast.2.Youmustreturnthebooknow.(一般疑问句)Ireturnthebooknow?No,you.Hecanplaybasketballwell.(一般疑问句)Hebasketballwell?

4.Theymusttakethebooksoutoftheroom.(否定句)Theythebooksoutoftheroom.5.Hewillgetupearly.(否定句）Hegetupearly.(三)选择题。1.ItoldSallyhowtogethere,butperhapsI_______forher.A.hadtowriteitoutB.musthavewrittenitoutC.shouldhavewrittenitouD.oughttowriteitout2.—Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell.—It_______acomfortablejourney.A.can’tbeB.shouldn’tbeC.mustn’thavebeenD.couldn’thavebeen3.It’snearlyseveno’clock.Jack_______behereatanymoment.A.mustB.needC.shouldD.can4.Johnny,you_______playwiththeknife,you_______hurtyourself.A.won’t;can’tB.mustn’t;mayC.shouldn’t;mustD.can’t;shouldn’t5.Thefirespreadthroughthehotelveryquicklybuteveryone_______getout.A.hadtoB.wouldC.couldD.wasableto6.—WhencanIcomeforthephotos

Ineedthemtomorrowafternoon.

—They_______bereadyby12:00.A.canB.shouldC.mightD.need7.—IstayedatahotelwhileinNewYork.—Oh,didyou

You_______withBarbara.

A.couldhavestayedB.couldstayC.wouldstayD.musthavestayed8.—AreyoucomingtoJeff’sparty?

—I’mnotsure.I_______gototheconcertinstead.A.mustB.wouldC.shouldD.might9.Iwasreallyanxiousaboutyou.You_______homewithoutaword.A.mustn’tleaveB.shouldn’thaveleftC.couldn’thaveleftD.needn’tleave10.—IsJohncomingbytrain?

—Heshould,buthe_______not.Helikesdrivinghiscar.A.mustB.canC.needD.may11.Aleft-luggageofficeisaplacewherebags_______beleftforashorttime,especiallyatarailwaystation.A.shouldB.canC.mustD.will12.Iwonderhowhe_______thattotheteacher.A.daretosayB.daresayingC.notdaresayD.daredsay13.Whenhewasthere,he_______gotothatcoffeeshopatthecornerafterworkeveryday.A.wouldB.shouldC.hadbetterD.might14.Ithasbeenannouncedthatcandidates_______remainintheirseatsuntilallthepapershavebeencollected.A.canB.willC.mayD.shall15.How_______yousaythatyoureallyunderstandthewholestoryifyouhavecoveredonlyapartofthearticle?A.canB.mustC.needD.may16.—Ihearyou’vegotasetofvaluableAustraliancoin._______Ihavealook?

—Yes,certainly.DoB.MayC.ShallD.Should●答案解析●、1.needn’t/don’thaveto2.Cancan3.Maymust4.haveto5.will6.should7.can/could8.must/should9.Would10.can(二)1.Can’trun2.Mustneedn’t3.Canplay4.can’ttake5.wouldn’t(三)1.C。“oughtto/shouldhave+过去分词”表示后悔当初该做但却没做某事。“…也许我本该把详细地址写给她的。”2.D。“couldn’thave+过去分词”表示对过去情况的推测。既然小汽车上“已有五人”，且是“设法”才把你带去的，如此拥挤，旅途当然“不可能”舒服。3.C。nearly暗示“时间不早了”，Jack“按理应当(