英语人教版九年级全册复习动词不定式.ppt

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1、复习动词不定式章广中学吴有群肯定：to+V.原或者(to)+V.原否定：not/never+(to)+V.原动词不定式的主要用法一、动词不定式在句子中不能独立充当谓语，没有人称和数的变化。二、动词不定式短语具有名词、形容词和副词等的功能，可在句中用做主语、宾语、状语等多种句子成分。动词不定式的结构A.tobeSubject(作主语)B.tobePredicative(作表语)C.tobeObject(作宾语)D.tobeObjectiveComplement(作宾补)E.tobeAttribute(作定语)F.

2、tobeAdverbial(作状语)FunctionsoftheInfinitive作主语1.Togoabroadishisdream.2.Tosayiseasy,todoisdifficult.（这时可将其用形式主语it来替换）Itishisdreamtogoabroad.Itiseasytosay,itisdifficulttodo.作表语Hisworkistofeedtheanimals.Herjobistolookafterthepatients.Mywishistobeascientist.Iwant

3、tobuyacomputer.Shehopestofindabetterjob.Iwishtogowithyou.作宾语作宾语补足语Sheaskedmetohelpher.Theteachertoldhimtocomeontime.Edison’smothertaughthimtoreadandwrite.wantsbtodowishsbtodogetsbtodoordersbtodofindsbtobelikesbtodo作宾语补足语不带to的情况:感觉动词、使役动词后面的to常省略，但是被动语态中的to不能

4、省略。Letmedoit.Isawhimcrossthestreet.常见动词有：有些动词后面做宾补的不定式不带to。feel（一感）hear,listento（二听）make,have,let（三让）see,watch,notice,observe（四看）作定语Givemesomethingtodrink.Ihavetwobookstoread.Theiceishardenoughtoskateon.作状语Iwenttheretoseemyteacher.ShecamebacktogetherEnglishb

5、ook.Theboywastoofrightenedtomove.(目的)(目的)（结果）疑问词who,what,which,where,when,how加todo可构成不定式短语，在句中可用作主语、宾语、宾语补足语、表语等。Whentostarthasnotbeendecided.(主语)Hecantellyouwheretogetthebook.(宾语补足语)Thequestioniswho(m)toask.(表语)Idon’tknowwhattodo.(宾语)