《不定式学习一》PPT课件.ppt

不定式,总括,不定式经常是todo的形式，有些情况下to省略不定式的否定式是nottodo常见的不定式有好多种，你不一定全记住，但看了要知道他们也是不定式。如：Todo；Tohavedone；TobedoingTohavebeendoing；Tobedone；Tohavebeendone,要点一：不定式与动名词作主语的区别,观察：找出句子的主语Takingmoreexercisewillkeepyouhealthy.Playingwithfireisdangerous.Walkingisagoodformofexercise.Itisgoodtohelpothers.ItishardtolearnFrench.,要点一：不定式与动名词作主语的区别,典型例子：Playingbasketballismyhobby.动名词作主语Itsnoteasytopassthisexam.区别1.不定式作主语，位置比较特殊，通常要放在句末。（放句首的情况比较少，通常是谚语之类的。如Toseeistobelieve.眼见为实）区别2.不定式作主语，侧重表示某一次的具体行为，而动名词作主语侧重表示经常性的，一般性的动作。,要点二.What/where/how/whentodo,但whydo？Whynotdo?,Iknowhowtodothat.Wewilldecidewhentogothere.Whynotdothat?Whyworryaboutitnow?,要点三.But，otherthan的后面to的省略,Cantbutdo;Cantchoosebutdo;Canthelpbutdo;Couldntbutdo;CoulddonothingbutdoHavenothingtodobutdoHavenochoicebuttodo,Cant类的后面不加to，简称cantbutdo,简称dobutdo,而最后一个就有加to了,Otherthan,except同理,Cantbutdo;dobutdo;其余一般加to,例子：Shecoulddonothingbutcry.Ihavenochoicebuttoacceptthefact.Ill.doanythingbutworkonafarm.Ihadnothingtodobuthavearest.Thereisnothingtodobutwait.Johncouldnotchoosebutobey.Icannotbutbelievewhatyousaid.Hewantednothingbuttoaskforadvice.Ihavenochoicebuttogowithhim.,要点四.感官动词和使役动词,感官动词：see,hear,watch,notice,feel,observe一些使役动词：let,make,have这些词主动的时候，后面接不定式时，to要省略如seesbdo；makesbdo但是变为被动时，to要恢复。Sbisseentodo;sbismadetodoAmanwasseentoentertheshop.,要点五.不定式结构作定语结尾的介词,下面几句都对么？Ihavealettertowrite.Ihaveapentowrite.Ihavesomepapertowrite.要注意不定式结尾的完整。2.Ihaveapentowritewith.3.Ihavesomepapertowriteon.,小结：,要点一：不定式与动名词作主语的区别要点二.What/where/how/whentodo,但whydo？Whynotdo?要点三.But，otherthan的后面to的省略要点四.感官动词和使役动词要点五.不定式结构作定语结尾的介词,Practice：不定式综合练习题库,1.Theboywasmade_thesongonceagain.(sing)2.Dontmakechildren_toohard.(work)3.Theywouldrather_(die)than_(surrender).4.Hecouldnotchoosebut_her.(love)5.Shecoulddonothingbut_hernameunderthecircumstances.(change)6.Therewasnothingtodoexcept_(escape).7.Ifheisnotwillingtobewithyou,why_somebodyelse?(not,ask)8.Sinceheisonlyakid,why_funofhim?(make),tosing,surrender,Love,change,escape,notask,make,work,die,作业：,复习今天所学的五个要点并学习例句。晚上造句明天讲解不定式的几组形式的对比,造句练习,为什么不试一下？我们还没确定何时去那。我做不了别的，只能待家里。（至少写两个句式）他每天被迫做很多事。她有很多小孩要照顾。,感官动词补充练习,感官动词：feel,see,hear,watch,notice句型：感官动词+sb+doing/do/done(分别表示正在发生，全过程，被动完成）(1)theyknowherverywell.Theyhadseenher_upfromchildhood.A.growB.grewC.wasgrowingD.togrow答案A(2).Themissingboywaslastseen_neartheriver.A.playingB.TobeplayingC.playD.toplay答案A1.Ifoundthesnakeeatingtherat(老鼠）.2.Ifoundtherat(老鼠）eatenbythesnake.,练习：-Excuseme,whereisroom301?-justaminute,.IllhaveBob_youtoyourroom.(2007北京)A.showB.showsC.toshowD.showing答案A.Theteacheraskedus_somuchnoise.(2003北京)A.dontmakeB.notmakeC.notmakingD.nottomake答案：D.asksbtodosth;asksbnottodosth;注意不定式的否定形式Johnwasmade_thetruckforaweekasapunishment.(1991)A.towashB.washingC.washD.tobewashing答案：A.主动状态下，有几个词语是省略to的，感官动词和l