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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Grammar,Unit2,Greatminds,Objectives,Tolearntheinfinitivesafternouns,Tolearntheinfinitivesassubjects,Tolearntheinfinitivesafterthe,verb,tobe,Infinitivesafternouns,Einsteinoftenreceived,invitations,toexplain,histheoriesatdifferentuniversities.,2.Thenext,train,toarrive,isfrom,Washington.,3.Ihave,alotofwork,todo,.,4.Sohemade,somecandles,togive,light.,5.Doyouhave,anything,tosay,onthe,question?,6.,Mywish,tovisit,Francehascometrueat,last.,1.Einsteinoftenreceived_histheoriesatdifferentuniversities.,2.Thenext_,isfrom,Washington.,3.Ihave_.,4.Sohemade_light.,5.Doyouhave_onthe,question?,6._Francehascome,trueatlast.,invitations,toexplain,train,toarrive,alotofwork,todo,somecandles,togive,anything,tosay,Mywish,tovisit,go,Ready?,Theresenoughbirdfood_foramonth.(2001,年山西,),A.tolastB.last,C.lastsD.lasted,以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据,之前练习的考察情,况进一步选择讲解,该语法项的重难点。,7,动词不定式通常由“,to+,动词原形,”构成,没有人称和数的变化，它是非谓语动词的一种。,否定形式：,在不定式的前面直接加,not,即,nottodo,。,用法：,可在句中作主语、表语、宾语、宾语补足语、定语和状语。,动词不定式作定语时，放在被修饰的名词或代词之后。,如：,Doyouhave,anything,totell,me?,你有什么事要告诉我吗？,我不喜欢和她呆在一起。我们没有什么可谈的。,Idontliketostaywithher.Wehave,nothing,totalk,about,.,若动词不定式与被修饰词之间是动宾关系，且动词不定式的动词是不及物动词时，该动词后需要加相应的介词。如：,动词不定式作定语,z,1.Ivemadeadecision.,_,agenius.,Adecisiontobecome,_,what?,Youcantbeserious.,Adecisiontodo,2.Ivegotanability.,_agreatdoctor.,_what?,Idontbelieveit!,Anabilitytobe,Anabilitytodo,JimistellingMayabouthisdream.Completetheirconversationwiththewordsfromthebox.(P23),bebecomehelpmakestart,A1,z,3.Ivemadeaplan.,_lifebetterforeveryone.,Aplantomake,_what?,Youllprobablyfail.,Aplantodo,4.Ivedecidedtofindaway.,_peoplelivetobe1,000yearsold.,_what?,Youmustbejoking.,Awaytohelp,Awaytodo,z,5.Sonowisthetime.,_,work.,Thetimetostart,_what?,Illgiveyousomeadvice.,Thetimetodo,6._what?,Tostopdreaming!,Advicetodo,Atschool,Einsteinsability_surprisedhisteachers,buthewasboredwithothersubjects.Attheageof15,hewasgiventhechance_,buthedidnotdowellenoughintheexam.Hedidnotloseheart,however,andhehadawish_thenextyear.Thistime,hesucceeded.Hekepttrying,soheachievedhisdream_.,todoMaths,togotouniversity,totryagain,tobecomeascientist,Completetheparagraphbelowwiththewordsfromthebox.(P24),A2,becomeascientistgotouniversitydoMathstryagain,Infinitivesassubjects,It,sapleasure,todrive,ageniuslikeyou,DrEinstein.,It,wasgood,tohave,afriendlikeEinstein.,It,sapleasure,tohear,someonetellmethetruthaboutmylook.,It,waseasyforEinstein,toanswer,thequestion.,_apleasure_ageniuslikeyou,DrEinstein.,_wasgood_afriendlikeEinstein.,_apleasure_someonetellmethetruthaboutmylook.,Itwas_forEinstein_thequestion.,Its,todrive,It,tohave,Its,tohear,easy,toanswer,go,Ready?,Whydontyoubelievethealiens?,BecauseIveneverseenone.You,know,_is_.,A.tosee;tobelieve,B.see;believe,C.seeing;tobelieve,D.tosee;believing,以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据,之前练习的考察情,况进一步选择讲解,该语法项的重难点。,18,动词不定式作主语时，谓语动词常常用单数。,例如：,做早操有利于我们的健康。,Todomorningexercises,is,usefulfor,ourhealth.,每天打扫地板是我的责任。,Tosweepthefloor,everyday,is,myduty.,动词不定式作主语,动词不定式作主语时，如果动词不定式比较长，为了使句子显得协调，常常将动词不定式放在句子后面，而用,it,作形式主语。如：,TolearnEnglishwellisnotaneasyjob.,=ItisnotaneasyjobtolearnEnglishwell.,学好英语不是件容易的事。,动词不定式作主语,it,作形式主语,常见的用,it,作形式主语的句型有：,Itis/was+,n.,/,adj.,+todosth.,Ittakes/took+sb.+,一段时间,+todosth.,我走到那儿花了半小时的时间。,It,tookmehalfanhour,towalkthere.,对我们来说，学好英语是重要的。,It,simportantforus,tolearnEnglishwell.,DrGreen:,Hello,Hans.,Hans:,Hello,DrGreen.Howlongdid,ittakeyoutogetherebyplane?,DrGreen:,_,_(take/twohours),Howlongwillittaketogetto,theuniversity?,Hans:,_,_.(take/20minutes),DrGreen:,Well,thatsnotverylong.Hans,youreaverygooddriver.Isit,difficulttodriveacar?,Ittookmetwohourstogetherebyplane.,Itwilltake20minutestogettotheuniversity,Hansoncedroveanotherscientist,DrGreen,fromtheairporttoauniversity.Completetheirconversationwithinfinitivesandwordsinbrackets.(P25),B,Hans:,No,_.,(easy/drive),DrGreen:,MaybeIlllearntodrivesome,day,but_,_(difficult/forme/learn),rightnow.Imtoobusy.Doyou,likeyourjob,Hans?,Hans:,Yes,Ilikeitalot.Imeetmany,greatpeoplebecauseImadriver.,_.,(lucky/forme/have/job),itiseasytodriveacar,itisdifficultformetolearnit,Itisluckyformetohavethisjob,Infinitivesaftertheverb,tobe,1.Herjob,was,tolookafter,thesickboy.,2.Thenextstep,is,tomakesure,thatyou,knowexactlywhatisrequired.,3.Mywork,is,toclean,theroomeveryday.,4.Hisdream,is,tobe,adoctor.,1.Herjob_thesickboy.,2.Thenextstep_thatyou,knowexactlywhatisrequired.,3.Mywork_theroomeveryday.,4.Hisdream_adoctor.,was,tolookafter,is,tomakesure,is,toclean,is,tobe,go,Ready?,Whatisyourplanforthenext,week?,Myplanis_toBeijing.,A.togoingB.gone,C.togoD.went,动词不定式往往放在系动词,be(become,sound,taste,等系动词后面一般不接不定式,),的后面作表语，表示具体动作或将来动作，说明主语的内容。,例如：,我的愿望是当一名教师。,Mywish,is,tobecomeateacher.,你今天的工作是打扫操场。,Yourjobtoday,is,tocleantheplayground.,动词不定式作表语,28,1.dothework/themostimportantthing/well,2.inayear/MrWhitesplan/haveasmallshop,3.attractthestudents/myidea/bymakingaposter,4.children/herjob/takecareof,Themostimportantthingistodotheworkwell.,MrWhitesplanistohaveasmallshopinayear.,Myideaistoattractthestudentsbymak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