1复习动词不定式动词不定式构成：____________否定形式：_____________时态和语态：主动被动一般式完成式进行式1todo作主语Translation:学好英语是件很难的事情______________________________________________________________=_____________________________________________________________在很多情况下，尤其是在疑问句和感叹句中，不定式往往放在谓语之后，而用_______作形式主语。如：Whenisitsafe__________(cross)theroad?Howawfulitwas_______________(discover)byGladiceClaffen!2todo作表语Ourmostimportanttasknowistomakeaplan.我们的目标是被大学录取Ouraimis____________________________touniversity你的职责是遵守诺言Yourdutyis___________________________当句子的主语是____________________________________________________等名词或者主语是what引导的名词性从句时，后面可以用不定式做表语，用以说明主语所包含内容。3todo作宾语Hewantedtoleave.Sarahdeterminedtoforgivehisfriend.后接不定式作宾语的谓语动词有：___________________________________________________________________________________________________________________________当不定式短语比宾补长时，往往将不定式放到句子最后，前面用先行代词it作形式宾语，Ifeltitterribletogetalowmarkinatest.TheboyfounditdifficulttogetonwithherWethink_______safer__________(put)moneyinablank.常用动词有__________________________________注意区别：todo和doing作宾语4todo作_______________Youshouldgetthemtohelpyou.Theybelievedhimtobehonest.句型结构：动词:get,ask,force,order,tell,invite,allow,wish,want,like,expect,advise,beg........+sb.+todo5todoasan_______________下个月即将完工的大楼将用作我们的图书馆。Thebuilding_____________________willbeusedasourlibrary.Hehasnotkepthispromise_______________(write)tohisparentsregularly.2Shemadeadecision____________(go)abroadforayear.不定式可以在句子充当_____________定语，修饰名词。翻译：他总是第一个来，最后一个走：没有什么可以担心：6todoasanadverbial不定式可以作状语，表示目的、结果等。1.Allthesegiftsmustbemailedimmediately_____intimeforChristmas.A．inordertoreceiveB.inordertohavereceivedC.soastobereceivedD.soastobereceiving①todo,inorderto,soasto在句中做________________状语2.Hehurriedtothestationonly______thatthetrainhadgone.A.tofindB.findingC.foundD.tohavefound②onlyto做_______________状语，表示意想不到的结果。注意区别：不定式的进行式、完成式和被动式Somestudentspretendedtobereading不定式的进行式：__________________用来表示谓语动词动作发生时____________的动作。---IsBobstillperforming?---I’mafraidnot.Heissaid_______thestagealreadyashehasbecomeanofficial.A.tohaveleftB.toleaveC.tohavebeenD.tobeleft不定式完成式：______________________用来表示动作发生在谓语动作之_______。TheChineseareproudofthenextOlympicGames_____inBeijingin2018.A.holdB.holdingC.heldD.tobeheld不定式的被动式:_____________用来表示动作发生在谓语动作之_______。Part2Bare-infinitive有些动词后面须接不带to的不定式做宾语补足语,常用的动词有make,let,_______________________________________________________等,但变成被动语态后,不定式成为句子的主语补足语,需带to.Shemademeswear.=Iwas_______________swearPoint2:当两个不定式由and,or,expect,but,than或ratherthan连接起来时，第二个不定式to省略.Shetoldme_____________(be)cheerfuland_______________(look)onthebrightside.Wehadnothing_____________(do)but_____________(watch)TV.Idecided________________(write)ratherthan_____________(watch)TV.不定式主动表被动的问题1.①Shehasasister____________________.(她有一个妹妹要照看)（Shelooksafterhersister）②Ihavemanybooks__________________.(我有很多书可读)（Ireadthebooks）小结：不定式与它前面修饰的词构成__________关系，又和句子主语构成_________关系时，不定式用______形式。2.①Thisbookisdifficult________________________.(这本书难懂)②Thiskindoffishisnice_____________________.(这种鱼很好吃)小结：不定式的宾语恰好是句子主语时，用________表被动。3
