B7U1动词不定式_f

Unit1LivingWell,DiscoveringusefulstructuresRevisionoftheInfinitive动词不定式,动词不定式的作用FunctionsofInfinitive,主语(subject)宾语(object)表语(predicative)定语(attribute)状语(adverbial)宾补(objectcomplement),1.Seeingistobelieve.Toseeisbelieving.Seeingisbelieving.Toseeistobelieve.,3.Allyouhavetodois(to)finishthejobquickly.,2.Myjobistohelpthepatients.,.作表语,不定式常用在系动词be,seem,appear,get,remain等后作表语,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,.作定语(常常表示将来的动作),1.不定式做定语时常放在被修饰的名词或代词之后Shewasverybusyandhadnotimetovisitherfriends.Ladiesandgentlemen,Ihavesomethingimportanttotellyou.2.当名词被thefirst,thelast,theonly等词以及形容词最高级修饰时eg:Sheisalwaysthefirsttocomeandthelasttoleave.,4.如果不定式是不及物动词,则后面需适当的介词Pleasepassmesomepapertowrite_.Shehasanicepentowrite_.Heboughtaflatforthefamilytolive_.,5.Doyouhavealettertosend?Doyouhavealettertobesent?,你有信要我寄吗？,你有信要寄吗？,on,with,in,3.也可用在havetodo和therebe句型中。,Thereisnoonetotakecareofher.Ihavenojewelrytowear.,eg:Hespokeloudly(soas/inorder)tobeheard.,.作状语,1.表示目的:to/inorderto/soasto,2.表示原因不定式可以用在作表语的形容词后作状语,sorry,surprised,happy,glad,eager,angry,foolish,right,wrong,slow,quick,rude,cruel,disappointed等。,eg:Imglad/pleasedtoseeyou.Weweresurprisedtohearthenews.,3.结果状语:so+adj./adv.+astodosuch+adj.+n.+astodoadj./adv.+enough+todotoo+adv./adj.+todo,Wehurriedtothestationonlytofindthetrainhadleft.,Hewassofoolishastobelieveit.=Hewassuchafoolastobelieveit.=Hewasfoolishenoughtobelieveit.,Imtootiredtowalkanyfurthertonight.,.作宾补,Ididntaskyoutopayforthemeal.Theyhavewarnedustobecarefulofrats.,不定式在下列动词后作宾语补足语时，要省略to,“感觉”feel“听”hear,listento“使役动词”have,make,let“看”see,lookat,observe,watch,notice,但当以上的动词用于被动式，to要还原：1.Theysawtheboyfallsuddenlyfromthetree.Theboywasseentofallsuddenlyfromthetree.,2.MothermadeJohnwashthecarforaweek.,Johnwasmadetowashthecarforaweek.,动词不定式的时态和语态,一般式,完成式,进行式,完成进行式,todo,tohavedone,tobedoing,tohavebeendoing,形式,主动,被动,tobedone,tohavebeendone,1.Iaskedhimtoattendthemeeting.,2.HeseemstobereadingEnglishpoems.,3.HeissaidtohavetranslatedthebookintoEnglishlastyear.,（toattendthemeeting动作发生在ask后),（seem和read同时发生,强调动作正在进行）,（translatethebook发生在besaid之前）,Thequestionisverydifficulttoanswer.Theproblemisdifficulttodealwith.,1.主语be+adj.+todo,能用于此句型的形容词有：difficult,easy,comfortable,fit,hard,pleasant,tiresome(使人疲劳的),interesting,nice,heavy,dangerous,light,important,etc.,主动形式表被动意义的不定式,Theboxislightenoughtocarry.Theriverwateriswarmenoughtoswimin.,2.主语+be+adj.+enough+todo,Thebooksseemedtooheavytocarry.Theiceistoothintoskateon.,3.主语+be+too+adj.+todo,1.LastsummerItookacourseon_.A.howtomakedressesB.howdressesbemadeC.howtobemadedressesD.howdressestobemade,2.Iveworkedwithchildrenbefore,soIknowwhat_inmynewjob.A.expectedB.toexpectC.tobeexpectingD.expects3.Therearefivepairs_,butIamatalosswhichtobuy.AtobechosenBtochoosefromCtochooseDforchoosing,5.Iwouldlove_tothepartylastnightbutIhadtoworkextrahourstofinishareport.A.togoB.havinggoneC.goingD.tohavegone6._lateinthemorning,Bobturnedoffthealarm.A.TosleepB.SleepingC.SleepD.Havingslept,4.Ifindtheseproblemsareeasy_.A.tobeworkedoutB.toworkthemoutC.toworkoutD.tobeworkedthemout,7.Tomkeptquietabouttheaccidentlosehisjob.A.sonotastoB.soasnottoC.soastonotD.notsoasto8.Johnwasmade_thetruckforaweekasapunishment.A.towashB.washingC.washD.tobewashing,9.Thepatientwaswarned_oilyfoodaftertheoperation.A.toeatnotB.eatingnotC.nottoeatD.noteating,10.ItssaidthattheOlympicGames_inBeijingin2008willcovermoreeventsth