连系动词和动词不定式讲解

复习连系动词系动词亦称连系动词（LinkVerb），作为系动词，它本身有词义，但不能单独用作谓语，后边必成系表结构说明主语的状况、性质、特征等情况。主要分为五种：1）状态系动词:用来表示主语状态，只有be一词，

Heisateacher.Sheisbeautiful.2）持续系动词:用来表示主语继续或保持一种状况或态度，主要有keep,rest,remain,stay等

Healwayskeptsilentatmeeting.他开会时总保持沉默。

Thismatterrestsamystery.此事仍是一个谜。Pleasestayseated.请继续坐着。3）表像系动词用来表示“看起来像”这一概念，主要有seem,appear,look,例如：Helookstired.他看起来很累。

Heseems(tobe)verysad.他看起来很伤心。Shelooksverynervous.4）感官系动词感官系动词主要有feel,smell,sound,taste,Thiskindofclothfeelsverysoft.这种布手感很软。Thisflowersmellsverysweet.这朵花闻起来很香。5）变化系动词:这些系动词表示主语变成什么样，变化系动词主要有become,grow,turn,fall（进入某种状态）,get,go,come等Hebecamemadafterthat.自那之后，他疯了。Thepollutionproblemisgrowingserious.污染问题日见严峻。Thehorsefellillanddied.这匹马生病死了。练习题1.----Doyouliketheflower?----Yes.It____sweet.A.issmellingB.smellsC.smeltD.issmelt2.(河北2009)Thissilkdress____sosmooth.A.tastesB.smellsC.soundsD.feels3.Theseapplestaste_____.A.tobegoodB.tobewellC.wellD.goodBDD4.Heletsme____homeearly.A.goB.togoC.goesD.going5.Weweremade____thatworkbefore.A.doB.todoC.does

D.doing

6.Lether______home.A.nottoleaveB.notleaveC.toleavenotD.tonotleave7.Hemadeus_____arest.A.haveB.tohaveC.hadD.havingABBA不定式基本形式：to+动词原形否定形式：notto+动词原形没有人称和数的变化具有名词、形容词、副词的特征，可以作主语、宾语、表语、定语、状语、宾语补足语。不能单独做谓语作表语不定式作表语表示具体的动作或将来动作e.g.Yourtaskistocleantheclassroom.Thedoctor’sjobistohelpthepatient.作定语置于被修饰词的名词或代词后e.g.Hehasalotofhomeworktodo.Thereisnothingtoworryabout.作主语1.当动词不定式做主语时谓语动词用单数

e.g.Tobeawriterisherdream.2.经常用it作形式主语，把真正的主语不定式置于句后。常用于下列句式：Ittakessbsometimetodosth花费某人一些时间做某事e.g.Ittakesmeonedaytofinishthiswork.Itbe+adj.+（forsb）todosth对某人来说做某事是….的e.g.Itisimportantforthestudentstodoeyeexercises.

作宾语1.常用于这个结构的有begin,want,hope,love,need,try,agree，start,plan,forget,remember,decide,refuse,wouldlike等动词后作宾语。E.g.TheydecidedtomovetoLondon.作宾语补足语1.不定式作ask,tell,invite,wish,want,teach,allow,advise等动词后的宾语补足语Iaskedhimtocallmebackat8:00.我要他8点给我回电话。2.make,let,have等使役动词及see，notice,feel,hear等感官动词后常接不带to的不定式Shealwaystellsmejokesandmakesmelaugh.注：不定式在动词help后作宾补时可以带to，也可省略。不定式练习题1.---Excuseme,couldyoutellmehow____toBeijingZoo?---Well,youmaytakeBusNo.27.A.getB.getsC.gettingD.toget2.Thepolicemanaskedus____himsendtheoldmantothehospital.A.helpB.helpsC.helpingD.tohelp3.Therobotismade____allthehousework.A.doB.todoC.doingD.tobedone4.Thebookiswellworth_____.Iplan_____one.A.read;tobuyB.reading;buyingC.reading;tobuy

DDBC5.Peterisbusy____atschool,butheneverforgets_____exerciseexerciseeveryday.A.working;doingB.working;todo

C.atwork;doing6.I’dlikeyou______forapicnicwithus.A.goB.togoC.goingD.went7.Asteenagers,weareoldenough___withhousework.A.tohelpB.helpingC.help