助动词和反意疑问句.ppt

1、本身没有词义,不能独立作谓语,只能和主要动词一起构成谓语动词2、用来表示否定、疑问、时态、语态或其它语法形式,助动词自身有人称、单复数和时态的变化。,助动词,英语中动词的一种，具有重要的作用。,英语动词共有四大类：实义动词、系动词、助动词、情态动词,e.g.HedoesntspeakEnglish.他不说英语。Weareplayingbasketball.我们在打篮球。Doyouhaveabrother?你有兄弟吗？,英语中助动词主要有哪些,be（is;am;are;was;were）动词,情态动词也是助动词的一种,借来的助动词do;does;did,现在完成时中的have和has,can;could;will;would;should;must;may等,MaryisfromShanghai.TheycomefromShanghai.Myfatherlikesreadingnewspaper.IhavebeentoBeijing.Wecanplaythepiano.Hesawaninterestingfilmlastnight.Thestudentsareplayingfootballoverthere.TheyhadagoodtimeontheGreatWall.ShewillflytoLondonnextweek.Tomhasfinishedhishomework.,大显身手,找出下列句中的助动词并说明用途。,把下列句子变成一般疑问句和否定句,ThestudentsinClassTwoplayedbasketballagainstClassOneyesterday,_?didtheyB.didnttheyC.weretheyD.werentthey2.-Alicehadnothingforbreakfastthismorning,_?-No.Shegotuptoolate.hadsheB.hadntsheC.didsheD.didntshe3.TheboyhasanewMP4,_?doesntheB.isntheC.doesheD.ishe4.Thereissomebeefinthefridge,_?isthereB.isntthereC.hasntthereD.hasthere5.JimnevergoestothemoviesonSaturday,_?A.doesheB.doesntheC.isheD.isnthe,6.IdontthinkKendidsuchastupidthing,_?doIB.dontIC.didheD.didnthe7.Thegirlsjustgoneout,_?isntsheB.doesntsheC.hasntsheD.hasshe8.Ithinkheisright,_?doIB.dontIC.isheD.isnthe9.HesaysthatIdidit,_?doesheB.doesntheC.didID.didntI10.FewpeoplevisitedHongKonginourclass,_?didtheyB.didnttheyC.weretheyD.werentthey11.Letsgoshoppingtonight,_?A.doweB.willweC.shallweD.willyou,12.Dontsmokeinthemeeting-room,_?doyouB.dontyouC.willyouD.shallwe13.Hehasneverbeenlateforschool,_?doesheB.doesntheC.hasheD.hasnthe14.Shecanhardlycatchtheearlybus,_?cansheB.issheC.doessheD.cantshe15.TheyhaveawonderfultimeinBeiji