《中考英语一轮复习-情态动词课件.pptx》由会员分享，可在线阅读，更多相关《中考英语一轮复习-情态动词课件.pptx（28页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、情态动词一.基本用法二.基本含义三.表推测四.问答五.易混辨析情态动词一、情态动词基本用法Thoughshelostherarm,shestillsurf.bad,know,win,example,can,young,be,she,hard,takecouldclean,give,can,encourage,try,he,borrow,student,easy,happyHisparents_notaffordtobuyhimsomethingsthatheneeded.could一、情态动词基本用法1.情态动词无人称和数的变化2.情态动词+实义动词原形3.情态动词的否定:情动+not4.情态
2、动词的一般疑问句：情态动词提前(*have to 借用助动词)二、情态动词的基本含义Later,manypeopleweremovedbythisstory.ButAmythoughtitwasnothing,Shesaid,“Asfriendswe30giveahandwhentheyneed.”30.A.cantB.mustntC.shouldD.would二、情态动词的基本含义情情态动词基本含基本含义 表能力表请求（一般疑问句）或给予许可can 能可以（请求/许可）cant 不能不可以（许可）could 能(过去的能力）可以（比can更委婉的请求）couldnt 不能/may/可以（请求
3、/许可）may not/不可以（许可）might/可以（比may更委婉的请求）mightnt/情情态动词基本含基本含义must必须mustnt禁止have to不得不dont have to不必need需要neednt不需要should应该shouldnt不应该shall应该，将要(一般疑问句，一，三人称)will将要，愿意would将要，愿意（常用于一般疑问句中表请求）1.ItssurprisingthatMr.Maslittledaughter_speakEnglishsowell.A.must B.canC.mustnt D.cant2.Look!Thetrafficlighthastu
4、rnedred.We_stopourcar.A.canB.cantC.mustD.mustnt3.People_driveafterdrinking.Itsagainstthelaw.A.mustnt B.needntC.couldntD.wouldntBC A4.Allpassengers_gothroughsafetycheckbeforetheytakeaplane.A.canB.mayC.must D.could5.You_returnthebooknow.Youcankeepituntilnextweekifyoulike.A.havetoB.cantC.mustntD.neednt
5、6.Imissedthelastbus,soI_gohomeonfoot.A.must B.havetoC.mayD.hadto CD B7.Youlookprettyingreen,Kate.Thankyou.Ilikegreen.Green_givemeenergy.A.canB.must C.shouldD.hasto8.Ihaveacold.You_liedownandrestA.cantB.shouldC.hasto D.can A B三、情态动词的问答Group 1:can/could/may/might三、情态动词的问答Group 2:must&need表能力：can/could
6、1.can肯定回答：Yes,sb.can.否定回答：No,sb.cant.2.could肯定回答:Yes,sb.could.否定回答:No,sb.couldnt.表请求许可：can/could/may/might肯定回答：Yes,sb.can/of course,sure.否定回答：sorry,cant./mustnt.(法律，规则禁止做某事)*注意：当委婉请求时，could不是can的过去式，只是语气更委婉而已，宾语从句时态考查易错点。例：1.Could you tell me where the bank _(be)？2.May I smoke in the hospital?No,you
7、 _.must&need肯定回答：Yes,sb.must.否定回答：No,sb.neednt./dont have to.MusthesingthesonginEnglish?No,he_.A.mustntB.cantC.needntD.shouldnt四、情态动词表示推测四、情态动词表示推测肯定：must（一定）否定：cant（一定不）不确定：can/could/may/might（可能）may not/might not(可能不)提示词：Im not sure.如何判断改题是考基本用法还是推测？基本用法：陈述事实推测：不确定表述,含推测之意或空后有be1.Whosedictionaryis
8、this?It_beAlices.Hernameisonthecover.A.mustB.canC.may D.might2.Listen!IsthatMillieplayingtheviolinintheartroom?No.It_beher.Shehasgonetotheteachersoffice.A.maynotB.mustnt C.needntD.cant A D3.Istillhaventfoundmypetdog.Imsorrytohearthat.You_beverysad.A.canB.shouldC.must D.will4.IsJimcomingbytrain?Imnot
9、sure.He_drivehiscar.A.mustB.needC.mayD.will C C五、情态动词辨析五、情态动词辨析must&have to区别must：必须（主观上的义务和责任）haveto：不得不（客观），有“被迫”之意1.为了活命，我们_ 吃饭。2.我们_ 完成英语作业。3.由于长得丑，我_ 多读书。4.工资太低，我_ 吃土。5.我们_ 赡养父母。can&be able toHe _ swim.他会游泳。He _ swim.他过去会游泳。He _ swim.他将会游泳。can只有现在和过去两种时态且无人称和数的变化be able to的时态有多种且有人称和数的变化五、情态动词辨析need(1)实义动词肯定句：need to do否定句：dont/doesnt/didnt need to do(2)情态动词（常用于一般疑问句和否定句）否定句：neednt do1.Youneednt_itrightnowifyouarebusy.A.tofinish B.finish C.finishingD.finished2.Youdontneed_itrightnowifyouarebusy.A.tofinish B.finishC.finishingD.finished B AThanks