初中英语动词不定式完整精ppt课件

.,动词不定式,小榄一中陈洪甫,.,不定式,构成：to+动词原形,.,Toseeistobelieve.Itsimportanttokeephealthy.,1.不定式做主语,不定式作主语时,往往放在句子的后面,用it作形式主语.,Its+adj.+sb.+todosth.Its+adj.+sb.+todosth,easy,difficult,hard,careful,clever,foolish,kind,nice,.,1.Itisveryimportantforus_Englishwell.AlearnBlearningCtolearnDlearned2.爬那棵高树对于你来说太危险了。dangerousforyou_thattalltree.,C,Itis,toclimb,.,Iwanttogohome.Theworkersdemandedtogetbetterpay.Ifounditnecessarytotalktohimagain.,2.不定式做宾语,think/consider/findit+adj.+todo,常用动词不定式作宾语的动词有：hope,refuse,learn,choose,decide,agree,manage,pretend,plan.,.,Theteachertoldmetocleantheblackboard.Iexpectyoutogivemesomehelp.,3.做宾补,四看,watch,see,lookat,三让,let,make,have,二听,listento,hear,warn,tell,allow,help,ask.,notice,一感:feel,.,Imadehimdohiswork.,Hewasmadetodohiswork(byme).,WhereisJim?IdontknowButIsawhim_footballjustnow.A.WaswatchingB.watchingChadwatchingD.watched,B,考点传真,.,Ihavesomethingtosay.Hehasalotofhomeworktodo.Heislookingforaroomtolivein.Thereisnothingtoworryabout.,4.不定式做定语,(如果不定式中的动词是不及物动词,则不定式中要有介词.),.,1.不定式所修饰的名词或代词是不定式动作的地点工具等，即使是及物动词，不定式后面仍须有相应的介词。,请给我一支写字的笔.,Pleasegivemeapentowritewith.,2.something,anything,nothing,everything等复合不定代词常用不定式做后置定语。,.,who,which,when,how,what等连用，在句中不定式与疑问词起名词作用，可充当主语、表语、宾语等。,Hedidntknowwhattosay.他不知道说什么。(宾语)Howtosolvetheproblemisveryimportant.如何解决这个问题很重要。(主语)Myquestioniswhentostart.我的问题是什么时候开始。(表语),5.连接词+动词不定式,.,注意：”疑问词+不定式“作宾语时可以转化为宾语从句。如：Canyoutellmewheretogetthescarf?=Canyoutellme_thescarf?CouldyoutellmehowIshoudgettothepostoffice?=Couldyoutellme_thepostoffice?,whereIcanget,howtoget,.,6.固定句型:,1.hadbetter(not)dosth.最好（不）做某事2.Why(not)dosth.?为什么不做某事3.Wouldyouliketodosth?你愿意做某事吗？4.Couldyoupleasedosth?你能做某事吗？5.Its+adj.+for(of)sb.+todosth.做某事怎么样6.findit+adj.+todosth.发现做某事怎么样7.prefer+todoAratherthan(to)8.wouldrather(not)dosth.9.wouldratherdoAthan(do)B宁愿做某事而不愿做另一件事,.,Exercises,1.-Youvedoneverywellthistime.-Itsreallykind_.A.foryoutosaysoB.foryousayingsoC.ofyoutosaysoD.ofyousayingso2.Itisbettertoloseoneslifethan_.A.ifyouloseyourspiritB.losinghisspiritC.toloseonesspiritD.yourspiritgettinglost,C,C,.,3.Icantworkinthisway.-Whynot_itinsomeotherway?A.trytodoB.trydoingC.tryingtodoD.tryingdoing4.Sinceyoufinditdifficult_adecision,youdbetteradiscussion(讨论)withyourparents.A.reach;haveB.reaching;haveC.reach;havingD.toreach;have,B,D,.,5.Myfatherhates(痛恨)_.Heneverallowsme_.A.tosmoke;tosmokeB.smoking;smokingC.smoke;smokingD.smoking;tosmoke6.Thegirlwasbeginning_.A.getangryB.togetangryC.gettingangryD.angry,D,B,.,7.Thereisntanydifferencebetweenthetwo.Ireallydontknow_.A.wheretochooseB.whichtochooseC.whattochooseD.tochoosewhich8.