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1、动词不定式动名词分词。一.不定式构成：to+动词原形在句中作用：除谓语动词外的任何成分It‘susefultolearnEnglishwell=TolearnEnglishwellisuseful.句型it+be+adj+of/forsb+todosth.Itisimportantforustoprotecttheenvironment.不定式作主语不定式作主语，常用it替代，而将真正主语放在末尾注意：在kind,good,nice,clever等修饰人品质的时候介词用ofItiskindofyoutohelpme.一些谓语动词后只能跟不定式，这类词表命
2、令，打算或者希望的如：wouldlike,like,want,wish,hope,plan,expect.Wouldyouliketoseeafilmthisevening?不定式作宾语在find，think后跟不定式作宾语，常用it替代，而将真正宾语放于句末。IfinditeasytolearnEnglisheveryday.常见的不带to的不定式Whynotdo…,whydon’tyoudo,hadbetter(not)doWouldratherdo,could/would/willyou(not)do注意：一些使役动词和感官动词也用动词不定式作宾补
3、，这时要省略to.这些动词有：一感（feel)、二听（hear,listento)、三让（let,make,have)、四看（lookat,watch,see,notice)。但变为被动语态时要加上to.常跟不定式作宾语补足语的有ask,want,help,wish,teach,encourage,invite,warn,allow等。eg:MymotherencouragesmetolearnJapanese.不定式作宾语补足语（与宾语有逻辑上的主谓关系)eg:Lucyaskedhimtoturndowntheradio.不定式作宾语补足语eg:The
4、teacherwassawtoentertheoffice作定语(与宾语有逻辑上动宾关系）：eg:Thereisnothingtoworryabout.作状语（目的，结果，原因）：eg:Heopenedthedoorforhertocomein.作表语（常在be动词后，可与主语互换）：eg:Histaskistolearnhard=Tolearnhardishistask.不定式作其他成分疑问词+不定式（作主语或者宾语（可转化为宾语从句））eg:canyoutellmewhentoleave?=canyoutellmewhenyouwillleave?不
5、定式的常见考点123Grannyoftentellsus＿waterinourdailylifeA.saveB.savingC.tosaveD.savesItseemsthatitisgoingtorain.You'dbetter＿anumbrella.A.takeB.nottakeC.totakeD.nottotakeExcuseme,Wouldyoutell＿amap?wherebuyB.wheretobuyC.wherecanIbuyD.howIcanbuy4动词后跟不定式还是动名词的搭配（放在易混点讲）二.动名词构成：动词原形+ing用法：作主语
6、、宾语、表语、定语主语宾语表语定语eg:Eatingmuchisbadforyourhealth.动词宾语：eg：Ilikeplayingbasketballverymuch.介词宾语：eg:Thenotebookisusedforwritingdownnotes.eg:Hishobbyisswimming.=swimmingishishobby.eg:sheisinthereadingroom.两动词连用只能接动名词的词完成实践值得忙;继续习惯别放弃;考虑建议不禁想;喜欢思念要介意.finish,practice,beworth,bebusykeepo
7、n,beusedto,giveupconsider,suggest,can’thelp,feellikeenjoy,miss,mind三.分词构成：现在分词:动词+ing过去分词：动词+ed用法：表语、定语、状语、补足语表语定语状语补足语现分eg:Thestoryisinteresting.过分eg:Iamboredwiththething.现分eg:Doyouknowthegirlstandingunderthetree?过分eg:Pleasehandyourwrittenexercise.现分eg:Theywentoutofclassroom,tal
8、kingandlaughing.过分eg:Seenfromthehill,the
