情态动词加have done 用法.ppt

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1、Grammardidn’tneedtodoandneedn’thavedone1.didn’tneedtodo:不必做且没做e.g.ItwasSunday,hedidn’tneedtogotowork.(Sohedidn’tgo)是周日，他不必去上班。（事实上没有去）2.needn’thavedone:不必做但做了e.g.Thepoorgirlneedn’thavewaitedintherainforsolong.(Unfortunatelyshedidn’t)这个可怜的女孩本没必要在雨里等这么长时间。（事实

2、上她等了）Rewritethesentencesusingneedn’thavedone.1.Itwasn’tnecessaryforyoutobringsomeflowers!Youneedn’thavebroughtsomeflowers.2.Thankyoufortidyingtheroom–butitwasn’tnecessary.Youneedn’thavetidiedtheroom.3.Therewasnoneedforyoutobuytheboxofchocolates.Youneedn’tha

3、veboughttheboxofchocolates.4.Whydidyougotoschool?It’sSunday!Youneedn’thavegonetoschool.It’sSunday!5.Thankyouforbringingthebooktoshowme,butIalreadyhaveit.Youneedn’thavebroughtthebooktoshowme.Ialreadyhaveit.Readthesentenceanddecidewhichendingsarepossible.Idid

4、n’tneedtobuyagiftformyhostfamily____.becauseIalreadyhaddonesoIdidn’tgetonesoIboughtonesoItookitbackandgotarefund(b)Webroughtsomefoodtothepartybuttherewastoomuch,sowe___________________(bring)any.2.MyfriendspokegoodMandarinsoI____________________(translate)t

5、hespeechforhim.needn’thavebroughtdidn’tneedtotranslateCompletethesentencesusingdidn’tneedtodoorneedn’thavedone.3.Theofficehadalreadyopenedwhenwearrivedsowe________________(wait)outsideinthestreet.4.Igottothepartyat6p.m.,buttherewasnoonethere.SoI____________

6、______(arrive)soearly.didn’tneedtowaitneedn’thavearrived5.Itoldthehostallaboutmyhometownandthenhetoldmehe’dbeenthere.I_______________(tell)himanything.needn’thavetold1.天要下雨了,你没必要浇花。Itwasgoingtorain.Youdidn’tneedtowatertheflowers.2.昨天你本没必要去车站。Youneedn’thaveg

7、onetothestationyesterday.Translatethefollowingsentences.3.你无需告诉他这一消息,那只会使他悲伤。Youdidn’tneedtotellhimthenews,itjustmadehimsad.4.如果我早知道火车站这么近,我就用不着打出租车了。IfIhadknownthattherailwaystationwassonear,Ineedn’thavetakenataxi.—Catherine,Ihavecleanedtheroomforyou.—Than

8、ks.You_____it.Icouldmanageitmyself.A.needn’tdoB.needn’thavedoneC.mustn’tdoD.shouldn’thavedoneExercisesChoosethebestanswer.3.I_____haveboughtallthatwine—onlythreeguestscame.A.mustn’tB.needn’tC.maynotD.w