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SectionⅣGrammarModule1SmallTalkdidn’tneedtodo与needn’thavedone1．(教材P3)Inaddition,youneed___________(know)howlongyoushouldstay,andwhenyouhavetoleave.答案：toknow2．(教材P5)Weallknoweachother.Wedon’tneed___________(worry)aboutsmalltalk.答案：toworry3．(教材P5)Thepartyisinformal.Youneedn’t__________(wear)atie.答案：wear4．(教材P7)Webroughtsomefoodtothepartybuttherewastoomuch,sowe__________(本不必带)any.答案：needn’thavebrought5．(教材P7)MyfriendspokegoodMandarinsoI__________(不必为他翻译)thespeechforhim.答案：didn’tneedtotranslate1．用作实义动词(1)有人称和数的变化，其第三人称单数形式为needs，变为否定句或疑问句时要用助动词do/does/did。(2)后接名词、代词、动词不定式或动名词作宾语，当need的主语与need后面的动词之间是被动关系时，need后接动名词的主动形式或不定式的被动形式(即：needdoing＝needtobedone)。need的基本用法◆Theyneedanotherplayerforabasketballgame.他们还需要一名球员参加篮球比赛。◆Sinceyouknowitalready,wedon’tneedtokeepitasecret.既然你已经知道了，我们就没有必要保密了。◆Thebossneedshimtodowhateverhisjobcallsforhimtodo.老板需要他做其职业需要他做的任何事。◆Keepalistofallthejobsthatneeddoing/tobedone.把所有该做的事情列一张单子。2．用作情态动词need作情态动词时，没有人称和数的变化，后面接动词原形，通常用于否定句或疑问句中，意为“有必要，必须”。◆(2017·天津卷)Myroomisamess,butIneedn’tcleanitbeforeIgoouttonight.我的房间很脏乱，但是我今晚出去前不需要打扫。在回答need引起的问句中，肯定回答用must，否定回答用needn’t或don’thaveto.◆—NeedIanswerthequestion?——我需要回答那个问题吗？—Yes,youmust./No,youneedn’t.——是的，你必须回答。/不，你不必了。1．didn’tneedtodo表示过去没必要做某事，实际上也没做◆Youdidn’tneedtobuythebook.Itwascomplextounderstand.你不必买那本书。它太复杂了，很难懂。◆ItwasSunday,soIdidn’tneedtogetupearly.因为是星期天，所以我没必要早起。didn’tneedtodo和needn’thavedone2．needn’thavedone表示过去没必要做某事，而实际上做了◆Youneedn’thavetoldhimthenews.Hehadalreadyknownit.你没必要告诉他那个消息，他早已知道了。◆Youneedn’thavewashedthoseclothes.Wehaveawashingmachinetodothatsortofthing.你本不必洗那些衣服的，我们有台洗衣机可以洗衣服。Ⅰ单句语法填空1．Well，you__________tellmeanythingifyoudon’twantto.答案：needn’t2．(2016·江苏卷)OnceIlookupsomethingontheInternet,Idon’tneed__________(keep)allthedetailsforfutureuse.答案：tokeep3．Ididn’tneed__________(buy)aticketforthefilmbecauseIalreadyhadone.答案：tobuy4．Thereissomethingwrongwithmybike,soitneeds__________(repair)．答案：repairing/toberepaired5．—WehadbeenwaitingforMikeatthestationthewholenight.—Youneedn’t__________(wait)forhim.Hedidn’treturn.答案：havewaitedⅡ单句改错1．Idon’tneedtogetupearlythismorning,soIstayedinbeduntil9a．m._____________________答案：don’t→didn’t2．Ineedn’tputforwardmyideatomymanager,becausehetoldmethathehadhadabetterone._____________________答案：在put前加have3．MyclassmatespokegoodEnglishsoIdidn’tneedtranslatetheconversationforher._____________________答案：translate前加to4．Youcouldn’thavecarriedalltheseparcelsyourself.Theshopwouldhavedeliveredthemifyouhadaskedthem._____________________答案：couldn’t→needn’t5．Asitturnedouttobeasmallhouseparty,weneedhavedressedupsoformally._____________________答案：need→needn’t或在need后加notⅢ语法与写作1．(天津卷)You__________(本不需要担心)about__________thedinner—itwasabsolutelydelicious!答案：needn’thaveworried2．You__________(本来不需要去)tothecompanyinahurry,becausethemeetinghasbeencalledoff.答案：needn’thavegone3．(2016·北京卷)Ilovetheweekend,becauseI__________(不需要早起)onSaturdaysandSundays.答案：don’tneedto/needn’tgetupearly4．(江西卷)We__________(本不必买)somuchfoodnowthatSuziewon’tbewithusfordinner.答案：needn’thavebought5．(天津卷)Mark__________(本不必匆忙)．Afterdrivingattopspeed,hearrivedhalfanhourearly.答案：needn’thavehurried