暑假情态动词复习打印稿.doc

《暑假情态动词复习打印稿.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、情态动词复习一．概念：本身有一定的词义，表示说话人的情绪、态度或语气的动词。二.特点：1.不能单独作谓语，和其他动词原形构成谓语。2.无人称和数的变化。3.否定式构成是在情态动词后面加“not”。4.个别情态动词过去式，过去式可以用来表达更加客气、委婉的语气三．基本用法：1.can,could1)表示能力时，等于beableto。Canyouliftthisheavybox?=Areyouabletoliftthisheavybox?（体力）区别：①can只有一般现在时和一般过去式（could）；而beableto则有更多的时态(wasableto;willbeableto;ha

2、ve/hasbeenableto)②而表示过去通过努力而做成某事，只能用beableto，不能用can。Hewasabletogotothepartyyesterdayeveninginspiteoftheheavyrain.2)can表示请求和允许。此时可与may互换，-----Can/MayIgonow?-----Yes,youcan./No,youcan’t.3)can表示“有时会”：Akindpersoncanlosetempersometimes.脾气好的人有时会发脾气。4）can可表推测，只能用于否定句和疑问句5）can还用于一些固定短语中，如can’thelpdoi

3、ng译为_________________________can’tbutdo译为_________________________can’t…too…/enough译为_________________________巩固练习：()1.Justbepatient.You_____________expecttheworldtochangesosoon.A.can’tB.needn’tC.maynotD.willnot()2.The fire spread through the hotel very quickly but everyone __________ get out

4、. A. had to B. would C. could D. was able to ()3．I’mgoingtoEuropeonvacationtogetherwithJohnifI___findthemoney.A.canB.mightC.wouldD.need()4.Thepolicestillhaven’tfoundthelostchild,butthey’redoingallthey______..A.canB.mayC.mustD.should()5．Someaspectsofapilot’sjob________beboring,andpilotsoften__

5、_____workatinconvenienthours.A.can;havetoB.may;canC.haveto;mayD.oughtto;must()6．Thebiggestproblemformostplants,which______justgetupandrunawaywhenthreatened,isthatanimalsliketoeatthem.A.shan’tB.can’tC.needn’tD.mustn’t()7.----I’vetakensomeoneelse’sredsweaterbymistake.----It________Harry’s.Hehat

6、eswearingred,becausehethinksit’stoobright.A.hastobeB.willbeC.mustn’tbeD.can’tbe()8.----Look,someoneiscoming.Guess_______.-----Jack.He’salwaysontime.A.whocanitbeB.whohemayC.whohecanbeD.whoitcanbe()9.---IsawMaryinthelibraryyesterday.----You_____her.Sheisstillabroad.A.mustn’tseeB.can’thaveseenC.

7、mustn’thaveseenD.couldn’tsee()10.ItisusuallywarminmyhometowninMarchbutit____berathercoldsometimes.8A.mustB.canC.shouldD.would()11.MyMP4playerisn’tinmybag.Where_____Ihaveputit?A.canB.mustC.shouldD.would二、may,might1)表示请求和允许。might比may语气更委婉，----M