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1、高中英语动词不定式so……that……adj/adv+enoughtodosthbecaughtinasaresultofasaresultwakeupto形式宾语make/think/feel/find…+it+adjtodo…形式主语Itis+adj+(forsb)todo/doing/从句preventsb/sth(from)doingsthoneafteranothersweepawayhaveaneffecton……takeingiveoutIcouldn’tagreewithyoumoreI
2、havenoideainanutshellIt’sscaryI’lldomybestfromwhatIunderstandput…into……takeawayifpossibletrytodosthlookafterthinkabout非谓语动词doing动名词&现在分词done过去分词todo不定式todo可以作除谓语之外的任何成分不定式的形式:主动被动一般式todotobedone进行式tobedoing/完成式tohavedonetohavebeendone其否定形式:nottodo一般式:表示不
3、定式的动作与谓语动词动作同时发生或发生在谓语动词动作之后。HeseemstoknowFrench.(同时发生)Iexpecttohearfromyousoon.hearfromyou动作在expect之后2)进行式:表示不定式的动作与谓语动词同时发生并在进行中。Hepretendstobeworkinghard.3)完成式:表示不定式的动作发生在谓语动词之前。Iregrettedtohavetoldalie.先发生关于句子成分:必不可少的成分:主语+谓语(+宾语)主语+系动词+表语其它成分:定语,状语,
4、补足语Ihadaverydifficultjobtodoinmyofficeyesterday.主语谓语定语宾语定语地点状语时间状语不定式的句法功能:作主语谓语动词用单三形式,常用it作形式主语TolearnEnglishwellisnoteasy.=ItisnoteasytolearnEnglishwell.youarefoolish在形式主语中Itis+adj+forsbtodo…与Itis+adj+ofsbtodo……的区别forsb结构中adj表示事情的特征,指客观情况ofsb结构中adj说明s
5、b的特征。Itisfoolishofyoutosaysuchwords.Itisnecessaryforustolearnourlessonswell.wearenecessary×2)作表语(系动词之后为表语)Yourjobistowashdishes.AllIdidwas(to)givehimsomeadvice.表语不定式如果解释主语中do的意义时,to可以省略。3)作宾语在vt之后用todo形式此类动词:decide,hope,fail,plan,pretend,refuse,manage,ag
6、ree,promise,等Shepromisedtogivehimachance.4)作宾语补足语v+sb/sth+todo(补充说明)此类动词:want,wish,ask,tell,teach,allow等Hetoldmenottobringyouanything.注意:todo在感官动词see,hear,watch,feel,notice等和使役动词let,make,have等后面作宾补时,省略to.而help之后的to可加可不加。Ineverletmychildstayinthehousealld
7、ay.Iheardhersaythatshe’dliketogowithme.Couldyouhelpme(to)repairthecar?Thedoctormakehimgiveupdrinking.被动:Hewasmadetogiveupdrinking.(主语补足语)5)作定语(修饰名词)todo作定语与所饰名词有以下关系:主谓关系,动宾关系,同位关系,如:Shewasthefirstgirltoworkouttheproblem.(主谓关系)Hehasanimportantmeetingtoat
8、tend.(动宾关系)Hekeepshispromisetowritetousregularly.(同位关系)动宾关系时:定语todo的动词如果是不及物动词或情况需要时,后面应加有必要的介词,如:Haveyougotapenciltodrawpictureswith.Heisamantodependon.6)作状语:目的,原因,结果,条件Wewereveryexcitedtohearthenews.(原因)Hehurriedtothesch