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动名词和不定式 一、动词不定式(两个动词之间用“to”连接) 构成:肯定式to+动词原形 否定式nottodo 用法: 1.做主语 Tolearnaforeignlanguageisnoteasy. =It’snoteasytolearnaforeignlanguage. 2.做宾语 Theyallwantedtoseeyouyesterday. 3.做宾语补足语 Hewantsyoutocallhimback. 4.做定语 Iwanttogototheshoptobuysomething. 5.做状语 Theyranovertowelcomeus. 6.做表语 MyjobistoteachhimEnglish. A动词后面+to,常用的词有: 想/乐意want/wouldliketodo 叫(告诉)某人ask/tell(told)sb(not)todo 开始begin(began)/starttodo 决定decidetodo 设法trytodo 记得(忘记)remember/forget(forgot)todo 希望wish/hopetodo 计划plantodo 拒绝refusetodo Eg.Iwouldliketohelpyou. Heaskedusnottotalkinclass. Ihopetoseeyouagain. Don’tforgettobringyourbookhere. B特殊疑问词+todo(why除外) eg.Idon’tknowwheretogo Canyoutellmehowtodoit=whattodo Wedon’tknowwhichbooktochoose. Ex:1Doyouknow___________. A.whatwillwedoB.whattodoC.howtodo 2Iamnotsure________. A.whenleaveB.whentoleaveC.whenleaving 3Hecan’tdecide_______. A.whichonetobuyB.whichtobuyoneC.whichbuyone 4______skating? A.WhynotgoB.Whydon’tgoC.Whynottogo 二动名词(动词的ing形式,常用在动词或介词后面,做宾语) 肯定结构do+ing否定结构not+doing 常用词有: 1.enjoy/like/love+doingsth(喜欢) 2.feellike+doingsth(想要) 3.keep+doingsth(保持) 4.hate+doingsth(讨厌) 5.mind+doingsth(介意) 6.consider+doingsth(考虑) 7,suggest+doingsth(建议) 8.spendtime+doingsth(花时间) 9.finish+doingsth(完成) 10.practise+doingsth(练习) 11.can’thelp+doingsth(禁不住) 12.bebusy+doingsth(忙于) 13.beworth+doingsth(值得) 14.havefun+doingsth(玩得开心) 15.haveproblem+doingsth(有困难) 注意:所有的介词 (in,at,for,of,from,up,about,to,without)后+doing 下列几个词组的“to”为介词 1.beusedtodoing习惯于做某事 2.preferdoingtodoing宁愿…而不愿 3.lookforwardtodoing盼望着做某事 4.payattentiontodoing注意做某事 5.makeacontributiontodoing为…做贡献 三.动词+动词原形 有些动词后面只能跟动词原形。常用词有: 1.hadbetter(not)dosth最好(不)做某事 2.letsbdosth让某人做某事 3.makesbdosth使某人做某事 4.wouldratherdosththandosth宁愿…而不愿 5.prefertodoratherthandosth宁愿…而不愿 6.wouldyouplease(not)dosth?请你(不)…好吗? Eg:Youhadbetterstudyhard. Tomalwaysmadeuslaugh. Pleaselethimgowithus. Whynotplayfootballwithus? =Whydon’tyouplayfootballwithus? 注意:助动词(do,does,did,will,shall) 和情态动词(can,must,may,should,need) +动词原形 有些动词后接不定式或名词时,意义差别较