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不定式由“to+do(动词原形)”构成,其否定形式是“nottodo”,不定式可以带宾语或状语构成不定式短语,在句子中作______,_____,_____,_____,_____,_____或_________。不定式没有人称和数的变化,但有_____和_____的变化。插入语主语表语宾语宾补定语状语时态语态不定式有时态和语态的变化，时态共四种，即一般式、完成式、进行式和完成进行式。语态分为主动语态和被动语态，如下表所示。形式主动被动一般式进行式完成式完成进行式todotohavedonetobedoingtohavebeendoingtobedonetohavebeendone归纳：逻辑主语是动作的执行者时用_____语态；逻辑主语是动作的承受者时用_____语态。主动被动1.Hehopes_________(see)youagain.他希望再次见到你。2.Hethoughtitanhonor___________(invite)totheparty.他认为被邀请参加派对是个荣幸。toseetobeinvited1.Heorderedthebridge__________(build)withinthemonth.他命令在月内建成这座桥。2.Shewasglad_________________(give)somuchhelp.得到如此多的帮助,她很高兴。tobebuilttohavebeengiven归纳：动作与谓语动词的动作同时发生或在其后发生用___________________；动作发生在谓语动词的动作之前用____________________________。tobedonetohavebeendone(1)Themeeting_________(hold)isofgreatimportance.要举行的这个会议很重要。(2)Thishouseseems_____________(build)byagoodarchitect.这个房子似乎是一个厉害的建筑师建造的。tobeheldtohavebeenbuilt1.Thedishesneed____________.tobewashedwash2.Themailisintended(准备)__________.sendtobesent4.Thehouseis________(待售).selltobesold3.Thewallisexpected_____________.tobepaintedpaint通常在believe,suppose,say,report等动词构成的句子可以转换成主语+be+P.P.+tohavebeendonePeoplebelievethathewaskilled.Itisbelievedthathewaskilled.Heisbelievedtohavebeenkilled.转化成it’s+p.p.+that从句转化成He’s+p.p.+?大家相信他被杀了。1.Themeetingissaid_________________(cancel).据说会议取消了。2.Thebookisreported_________________(translate)intomanylanguages.据报道这本书已经被翻译成很多种语言。tohavebeentranslatedtohavebeencancelled1.Heishardtoconvince.2.Theproblemistoodifficulttoworkout.3.Withnothingtodo,helayinbed.归纳：在“…be+adj+todo”结构中。常用的形容词有easy,difficult,hard,impossible,nice,pleasant等。Heisimpossible_________(work)with.跟他一起工作是不可能的。1.Heishardtoconvince.towork归纳：“too…to…;enough…to…”结构中。Thehouseisbigenough________in.这房子用来住足够大。2.Theproblemistoodifficulttoworkout.tolive归纳：在“with+n.+todo”结构中。3.Withnothingtodo,helayinbed.Withsomanyexercises________,Ican’tgotothecinema.太多作业要做，我不能去看电影。todoBaymaxisasweetguy(暖男),andheisverypopularespeciallyamonggirls.Firstly,it_____(look)cuteandwarm,whichmakespeoplewant___________(hug)byhim.大白是个暖男，尤其在女生中受到欢迎。首先，他看起来很可爱很温暖，这使得大家都想被他抱抱。lookstobehuggedMeanwhile,asasweethealthcareassistant,heiseasy________(get)alongwithandwon’tleaveyoualone.Heiskindenough____________(accompany)youandiseasilyamusedbythewords“Iam________(satisfy)withyourcare”.同时，作为暖心的健康助手，他很容易相处，而且不会丢下你一个人。他足够友善陪伴你，并且你的“我很满意你的照顾”的话会让他很开心。togettoaccompanysatisfiedWhat’smore,withaselflesspersonality,Baymaxdoesn’tallowanyone____________(harm).Allinall,themovieissaid_________________(love)bythesocietysomuchthatitwonthetopofboxoffice(票房冠军).tobeharmedtohavebeenloved另外，有着无私的个性，大白不允许任何人受到伤害。总而言之，据说这部电影深受大众喜爱，并赢得了票房冠军。