PeriodFourGrammar—Didn’tneedtodoandneedn’thavedone感知以下课文原句,完成方框下的小题1.Webroughtsomefoodtothepartybuttherewastoomuch,soweneedn’thavebroughtany.2.MyfriendspokegoodMandarinsoIdidn’tneedtotranslatethespeechforhim.3.Theofficehadalreadyopenedwhenwearrivedsowedidn’tneedtowaitoutsideinthestreet.4.Igottothepartyat6p.m.buttherewasnoonethere,soIneedn’thavearrivedsoearly.5.Itoldthehostallaboutmyhometownandthenhetoldmehehadbeenthere.Ineedn’thavetoldhimanything.1.句2和句3中didn’tneedtodo表示“没必要,实际上也没有做某事”;2.句1、句4和句5中needn’thavedone则表示“虽然没有必要,但实际上已经做了某事”。need既可用作实义动词,也可用作情态动词。一、用作实义动词need用作实义动词时,和其他普通的实义动词一样,有时态、人称和数的变化,其否定式和疑问式要借助于助动词do/does/did。常用搭配Weneedtosetoffatonce.我们需要马上出发。Theflowersneed花需要浇水了。Doesyourfatherneedanyhelp?你爸爸需要帮助吗?Theydon’tneedtowaterflowersanymore.他们不必再浇花了。二、用作情态动词1.用作情态动词,后接动词原形,常用于否定句和疑问句中。Youneedn’tfinishthatworktoday.你今天不必把那项工作做完。Needhecomehere?他有必要来吗?2.由need引出的一般疑问句,肯定回答常用must或haveto;否定答语常用needn’t/don’thaveto。—NeedIanswerthequestion?—Yes,youmust./Yes,youhaveto./No,youneedn’t./No,youdon’thaveto.——我需要回答那个问题吗?——是的,你必须回答。/不,你不必回答。三、didn’tneedtodo与needn’thavedone这两种结构都可以表示过去不必做某事,但didn’tneedtodo表示“没必要,实际上也没有做某事”;而needn’thavedone则表示“虽然没有必要,但实际上已经做了某事”。试比较下列句子:1.Theydidn’tneedtodoitthemselves,sotheywenthomeinadvance.他们不需要自己去做,于是他们提前回家了。2.Therewasplentyoftimethen.Heneedn’thavehurried.当时时间很充足,他本不必匆匆忙忙的。上面两句话中:句1表明他们没必要自己做,实际上他们也没有自己做;句2表明虽然他没必要匆匆忙忙,但实际上与之相反。Ⅰ.单句语法填空1.Anothergroupoffolksisneededtohelp(help)markettheevent.(2018·江苏)2.Whenyouneedtotalk(talk)tosomeone,don’tdoitinyourownoffice.(2017·全国Ⅱ)3.Inordertomakeachange,youneedtodecide(decide)whyit’simportant.(2017·全国Ⅲ)4.Theyneededtobearoused(arouse)onewayortheother,andtheypreferredgoodnewstobad.(2016·全国Ⅲ)Ⅱ.完成句子1.ToearnaSpaceExplorationbadge,atraineeneedstobuildandfiremodelrockets.(2018·北京)为了得到太空探险徽章,参加培训的人需要建造火箭模型并给火箭模型点火。2.Myroomisamess,butIneedn’tcleanitbeforeIgoouttonight.Icandoitinthemorning.(2017·天津)我的房间很乱,不过今晚在我出去之前,我没必要打扫它。我可以在(明天)早晨打扫。3.Ilovetheweekend,becauseIneedn’tgetupearlyonSaturdaysandSundays.(2016·北京)我喜欢周末,因为每逢周六、周日我不需要早起。4.Ineedn’thaveworriedbeforeIcametothenewschool,formyclassmateshereareveryfriendlytome.(2015·天津)在来到新学校前我本不必担心,因为在新学校我的同学对我很友好。5.—DidyouaskSophiaforhelp?—Ididn’tneedto—Imanagedperfectlywellonmyown.(2012·大纲全国Ⅱ)——你让索菲亚帮忙了吗?——我不需要——我自己就能做得很好。Ⅰ.单句语法填空1.NeedIpay(pay)forthebrokenglass?2.Thehousebadlyneeds(need)acoatofpaint.3.IfIneedyoutocome(come)andhelp,I’llcall.4.—MustItellMaryaboutit?—No,youneedn’t(not,need).I’vetoldheralready.5.Yourclothesneedwashing/tobewashed(wash).6.Youneedn’t(not,need)takeanumbrellaasIwillshareitwithyou.Ⅱ.单句改错(每小题仅有1处错误)7.Weha...