动词不定式动名词.ppt

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1、非谓语动词马新林非谓语动词动词不定式（todo）动名词（doing）非谓语动词非谓语动词：也就是在句子中不能单独作谓语的动词叫非谓语动词。动词不定式V_ing过去分词动词原形包括一.动词不定式肯定式：to+动词原形1、构成否定式：notto+动词原形2、动词不定式的常见用法A、不定式作主语当不定式作主语时，习惯上用作it形式主语，而将动词不定式后置，构成固定句型。It’s+adj+todosth.（1）TolearnEnglishwellisnoteasy.（2）Toprotectourenvironmentisveryimportant（1）It’snot

2、easytolearnEnglishwell.（2）It’simportanttoprotectourenvironment.动词不定式作宾语动词+todo动词+疑问词+todo动词+it(形式宾语）+宾补+todo常见动词有agree,decide,fail,hope,wish,want,plan,wouldlike,need等Idon’tknowwhattodo.IfinditimportanttolearnEnglish.返回主页语法：动词不定式在句子中的作用①作主语：e.g.Tosayisonething;todoisanother.It’simpo

3、rtanttodoitrightaway.②作表语：e.g.Whatyoushouldistoleavehereatonce.Theproblemishowtodoit.③作宾语：e.g.Iwanttobuysomethingforhim.Idon’tknowwhattodonext.④作宾语补足语：e.g.Heaskedmetowaitforhimforawhile.Myfatherletsmegooutaloneatnight.不带to的不定式作宾补！！⑤作定语（位于名词或代词之后）：e.g.Doyouhaveanythingtosay?Haveyoug

4、otthepermissiontousethecomputer?⑥作状语（目的、结果、原因等）：e.g.Weeattolive;wedon’tlivetoeat.目的e.g.Wewenttoseehimonlytofindhimout.结果状语e.g.Wearegladtoseeyou.原因状语在too…todo…;adj./adv.+enoughtodo…结构中作结果状语；在inorderto;soasto结构中作目的状语；在be+adj.+todo…中作原因或方式状语。e.g.Heisoldenoughtogotoschool.Hegotupearlys

5、oastocatchthebus.I’msorrytohearthat.C、不定式作宾语补足语常见动词：请、叫ask告诉tell想要want邀请invite允许allow喜欢like警告warn鼓励encourage教teach想要wouldlike（1）Mymotheralwayslikesmetogetupearly.（2）LucyoftenteachesmetolearnEnglish.Onedaymymotherallowedmetogotothepark,butshewarnedmenottocomebacklate.Myfatherlikedme

6、togowithLucy,becausehewantedmetolearnEnglishfromLucy.Iinvitedhertogowithme.LucytaughtmetostudyEnglishandencouragedmetospeakmoreEnglish.SometimessheaskedmetoteachherChinese.Iwouldlikehertostaywithmeverymuch,soItoldhertowaitformeoutsidetheschoolgateeverySaturday.D、不定式作定语熟记下列短语somethi

7、ngtoeatsomethingtodrinkanythingelsetosaymuchworktodosomethingnicetoeat1.Ihavealotofhomeworktodo.2.Doyouhaveanythingtosay?lotsofhouseworktodo3.Myfatherhassomethingimportanttotellme.4.Wouldyoulikesomethingtodrink?E、不定式与疑问词连用，构成不定式短语，作宾语1.Idon’tknowwheretogo.2.Hedidn’tknowwhattodo.3.C

8、anyoutellmehowtogetthere?4