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1、RevisetheInfinitiveUnit1GrammarDoyoubelieveIcanflylikeabird?HowcanyoubelieveIcanflylikeabird?_______istobelieve.It’simpossibleforhumans________________now.ToseetoflylikeabirdMartysays…2.Iusedtoclimbtrees,swimandplayfootball.3.ThenIstartedtogetweakerandweaker.HaveALk
2、Unfortunately,thedoctorsdon’tknowhowtomakemebetter,butIamveryoutgoingandhavelearnedtoadapttomydisability.4.Evenafterallthat,noonecouldgivemydiseaseanameanditisdifficulttoknowwhatthefutureholds.5.Sometimes,too,Iwastooweaktogotoschoolsomyeducationsuffered.6.Myambition
3、istoworkforafirmthatdevelopscomputersoftwarewhenIgrowup.Martysays…Martysays…7.LastyearIinvented…andabigcompanyhasdecidedtobuyitfromme.8.Ialsohavetodoalotofwork,especiallyifIhavebeenawayforawhile.9.Justacceptthemforwhotheyare,andgivethemencouragementtoliveasrichandfu
4、llalifeasyoudo.不定式由“to+动词原形”构成,其否定形式是“not/nevertodo”,不定式可以带宾语或状语构成不定式短语,没有人称和数的变化,但有时态和语态的变化。不定式可以作主语、宾语、状语、表语和定语，但不能单独作谓语。不定式的逻辑主语有时用“for+名词或代词宾格”构成。不定式动词不定式的作用FunctionsofInfinitive1主语(subject)2表语(predicative)3宾语(object)4宾补(objectcomplement)5定语(attribute)6状语(adverb
5、ial)7独立结构(absoluteconstruction)1不定式作主语(subject)Tokeepsmilingishealthyforyou.It’simportanttolookupthenewwordsinthedictionarywhenyoustudyEnglish.单个不定式作主语时,谓语动词用单数。若不定式太长,往往用it作形式主语,不定式后置。Myjobtoprotecttheworld.Yourtaskisto_____________.is2不定式作表语(predicative)Seeingisto
6、believe.Toseeisbelieving.Seeingisbelieving.Toseeistobelieve.×√√×不定式常用在系动词be,seem,appear,get,remain等后作表语。Allyouhavetodois(to)finishthejobquickly.如果主语部分有个表示不定式内容的do,用作表语的不定式可省略to。YaoMinglikestoplaybasketball.Ifinditstillnecessary(forhim)to_________ifhewantstowin.3不定式作
7、宾语(object)句型：think/consider/findit+adj.+todo常接动词不定式作宾语的动词有：agree,afford,appear,ask,attempt,care,choose,claim,dare,decide,demand,deserve,determine,expect,fail,get,hate,hesitate,hope,hurry,intend,learn,manage,offer,plan,prepare,pretend,promise,refuse,seem,tend,threate
8、n,want,wish。4不定式作宾补(objectcomplement)Mymumasksmetoplaythepianotwohourseveryday.Theteachertoldmetocleantheblackboard.Iexpectyoutogivemesome
