动词不定式的用法归纳通用.ppt

动词不定式的基本用法归纳不定式由“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、宾补、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。1.作主语1不定式作主语(subject)2.作宾语3)不定式用在介词but,except,后时,如果这些介词前有行为动词do的各种形式,那么介词后的不定式不带to,相反则带to.3．作表语4．作宾语补足语
Heaskedmetogowithhim.
Hedidn’tallowmetogooutalone.
【注意】在感官动词（see,hear,feel,listento,notice,watch,observe等）和使役动词let,have，make后的补足语中，不定式不带to。但这类句子变成被动语态时，必须带to。
Isawhimplayinthepark.
→Hewasseentoplayinthepark.
Thebossmadethosemenworkdayandnight.
→Thosemenweremadetoworkdayandnight.
Iheardhersingtoday．
→Shewasheardtosingtoday．1.something,anything,nothing,everything,noone等不定代词或名词后常用不定式做后置定语。2.当名词被thefirst,thelast,theonly等词以及形容词最高级修饰时
eg:Sheisalwaysthefirsttocomeandthelasttoleave.6.作状语不定式作结果状语常用如下句型3.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。(4).独立结构作状语(8)不定式与疑问词who,which,when,how,what等连用，在句中起名词作用，可充当主语、表语、宾语等。(9)不定式的省略1.Itisgoodtohelpothers.
2.Itismyambitiontomakesurethatthedisabledpeopleinourneighborhoodhaveaccesstoallpublicbuildings.

3.MyambitionistoworkinthecomputerindustrywhenIgrowup.4.Idon’thavetimetositaroundfeelingsorryformyself.
5.Iamtheonlystudentinmyclasstohaveapetsnake.
6.Abigcompanyhasdecidedtobuyitfromme.
7.MyfellowstudentshavebeguntoacceptmeforwhoIam.8.Ihavehadtoworkhardtoliveanormallife.
9.SomedaysIamtootiredtogetoutofbed.
10.Wemustcallonlocalgovernmentto givefinancialassistancetodisabled people.1.Idon’tknowwhetheryouhappen____,butI’mgoingtostudyintheUSAthisSeptember.(2004辽宁）
A.tobeheard
B.tobehearing
C.tohear
D.tohaveheard2.Thiscompanywasthefirst_____portableradiosaswellascassettetaperecordsintheworld.(2005上海春）
A.producing
B.toproduce
C.havingproduced
D.produced3.____thiscake,you’llneed2eggs,175gsugarand175gflour.(2006广东）
A.Havingmade
B.Make
C.Tomake
D.Making4.Ilikegettingupveryearlyinsummer.
Themorningairissogood_____.
(2008全国卷)
A.tobebreathed
B.tobreathe
C.breathing
D.beingbreathed5.–Didthebookgivetheinformationyou
needed?
–Ye