高三英语 Unit1动词不定式 新人教版教材选修7 (精品).ppt

动词不定式不定式由“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。结构:todo
(否定)not/nevertodo(1).Theypretendednottoseeus.1.作主语三.用法/功能Iwanttogohome.
Theworkersdemandedtogetbetterpay.
Ifounditnecessarytotalktohimagain.Theteachertoldmetocleantheblackboard.
Iexpectyoutogivemesomehelp.
e.g.Imadehimdohiswork.3>不定式用在介词but,except,besides
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.Ihavesomethingtosay.
Hehasalotofhomeworktodo.
Heislookingforaroomtolivein.
Thereisnothingtoworryabout.不定式作定语时，应放在被修饰词的后面，而且放在其他后置定语之后。2.作定语的不定式如果是不及物动词，或者不定式所修饰的名词或代词是不定式动作的地点工具等，不定式后面须有相应的介词。4.something,anything,nothing,everything等复合不定代词常用不定式做后置定语。Icameheretoseeyou.
Hegotupearlytocatchthetrain.(7).独立结构(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。关于不定式中的小品词toexerciseMyteacherwasmade_____histeaching
becauseofpoorhealth.
givingupB.togiveup
C.giveupD.givenup

2.Thesentencewants____oncemore.
explainedB.toexplain
C.beingexplainedD.explaining

3.TheArcticisconsidered____thenorthernpartoftheAtlantic.
havingbeenB.tohavebeen
C.tobeD.being4.TheEmperororderedthewonderfulcloth
_____forhimwithoutdelay.
tohavewovenB.tobewoven
C.tobeweavingD.toweave

5.IfoundtheGermanlanguagehard____.
learnedB.learning
C.tobelearnedD.tolearn

6.—Thelightintheofficeisstillon.
---Oh,Iforgot______.
turningitoffB.turnitoff
C.toturnitoffD.havingturneditoff几对易混淆的词组：
stoptodosth.停止去做某事
doingsth.停止正在做．．．
forgettodosth.忘记去做．．．
doingsth.忘记已做了．．．
remembertodosth.记得去做．．．
doingsth.记得曾经做．．．7.---Howdoyoudealwiththedisagreement
betweenthecompanyandthecustomers?
---Thekey____theproblemistomeet
thedemand____bythecustomers.
tosolving,makingB.tosolving,made
C.tosolve,makingD.tosolve,made

8.---Whatdoyouthinkoftheschool?
----Itisaverygood_____.
schooltostudyin
B.schoolforchildrentostudy
C.studyingschool
D.schooltostudy9.---Didyougetajob?
---No,I___,butit’snouse.
expectedB.triedto
C.managedtoD.planned

10.Wefinditimpossibleforthework___
aheadoftime.
tofinishB.fini