不定式课件（共26张PPT）

GrammarTheinfinitiveCheckyouranswerstoEx.1:Underlineallthesentencesintheunitwhichcontaininfinitives.Thenmarktheirusagesaccordingtotheheadingsbelow.1.Asthesubject(S)2.Asthepredicative(P)3.Astheobject(O)4.Astheobjectcomplement(Oc)5.Astheattributive(A)6.Astheadverbial(Ad)Martysays…2.Iusedtoclimbtrees,swimandplayfootball.(O)3.ThenIstartedtogetweakerandweaker.Unfortunately,thedoctorsdon’tknowhowtomakemebetter,butIamveryoutgoingandhavelearnedtoadapttomydisability.(O)&(O)Checkyouranswers:(O)4.Evenafterallthat,noonecouldgivemydiseaseanameanditisdifficulttoknowwhatthefutureholds.(S)5.Sometimes,too,Iwastooweaktogotoschoolsomyeducationsuffered.(Ad)&(O)6.MyambitionistoworkforafirmthatdevelopscomputersoftwarewhenIgrowup.(P)Martysays…Martysays…8.LastyearIinvented…andabigcompanyhasdecidedtobuyitfromme.(O)9.Ihaveaverybusylifewithnotimetositaroundfeelingsorryformyself.(A)10.TolookaftermypetproperlytakesalotoftimebutIfinditworthwhile.(S)7.IamhappytohavefoundmanyThingsIcando...(Ad)11.IhavetoworkhardtoliveanormallifebutIthasbeenworthit.(O)&(Ad)13.Justacceptthemforwhotheyare,andgivethemencouragementtoliveasrichandfullalifeasyoudo.(A)12.IfIhadachancetosayonethingtohealthychildren,itwouldbethis…(A)Conclusion:不定式由_______________构成，没有人称和数的变化，在句中不能独立作谓语。不定式在句中可作_____,_____,_____,_____,_____,_________。主语宾语补足语状语定语宾语 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 语“to+动词原形”一·不定式在句子中的成分二.不定式的否定结构三.不定式的时态四.不定式的被动式一·不定式在句子中的成分1.不定式在句子中做主语(1)Toactlikethatischildish.(2)ItisnoteasytolearnEnglishwell.(3)Itcallsforagreatdealofmemoryworktomasteraforeignlanguage.Conclusion：为避免句子出现“头重脚轻”现象,常用做形式主语,将真正主语的不定式后置。it2.不定式在句子中宾语A.(1)Sheintendstotalkaboutthematter.(2)Hehopestofindajobsoon.Conclusion：常接动词不定式作宾语的动词有：want,wish,hope,expect,intend,mean,agree,promise,care,refuse,determine,decide,offer,attempt,manage,afford等。口诀：决心学会想希望，拒绝设法愿假装；主动答应想计划，同意请求帮一帮。B.(1)Haveyoudecidedwhattodonext?(2)Ididn’tknowwhethertolaughorcryaboutit.(3)I’llaskhimhowtooperatethemachine.Conclusion：动词learn,decide,know,determine,ask等常跟“+不定式（短语）”作宾语。疑问词C.(1)Ifinditdifficulttoworkwithhim.(2)Hemakesitaruletoreadnewspaperforanhourbeforebreakfasteveryday.Conclusion：feel,find,make,think,believe,consider等动词后如果接不定式做宾语，并且有形容词作宾语补足语(有时也可是名词),常用形式宾语,把不定式后移。it3.不定式在句子做表语(1)Myworkistocleantheroomeveryday.(2)Hisdreamistobeadoctor.Conclusion：不定式做表语常常表示主语的“职业、职责或性质”。4.不定式在句子中做定语(1)Ihavealotofworktodo.(2)Sheisthefirststudenttocometoschool.Conclusion：不定式放在被修饰的名词、代词的。后面5.不定式在句子中做宾语补足语A.(1)Fatherwillnotallowustoplayonthestreet.(2)Mr.Smithencouragedustosticktotheplan.Conclusion：在下列动词后，常接带动词不定式做宾语补足语:allow,permit,encourage,forbid,promise,wish,expect,prefer,tell,ask,order,require,force,warn,instruct,consider,cause,invite,advise,persuade,get,leave等。B.(1)Thepolicemansawachildplayinthestreet.(2)Theteachermadethestudentsdoallthecleaningworkfortheirparentsatweekend.(3)Wenoticedastrangerourdorm.(enter)Conclusion：在下列动词后，常接做宾语补足语：let,hear,have,make,see,observe,feel,watch,notice等.enter省略to的不定式Attention：一旦将这类句子中的宾语改成主语，或者说，变为被动语态，此时的“宾语补语”就成为“主语补语”了，故不定式符号to不可省略。(1)Achildwasseentoplayinthestreetbythepoliceman.(2)Thestudentsweremadetodoallthecleaningworkfortheirparentsatweekend.(3)Astrangerwasnoticedourdorm.(enter)toenter6.不定式在句子做状语(1)TolearnEnglishwell,IgetupearlytomemorizeEnglishwordseverymorning.(2)I’mgladtoseeyou.(3)Heisoldenoughtogotoschool.Conclusion:不定式（短语）在句子做状语，主要表目的、原因和结果等。Totellthetruth,Iamnothappyatthemoment.tobefrank,tobehonest,totellthetruth7独立结构二.不定式的否定结构1.请告诉你的小孩不要在街上玩耍。Pleasetellyourchildnottoplayinthestreet.2.她检查名字为了不犯错误.Shecheckedthenamessoasnottomakemistakes.Conclusion：不定式的否定结构为：.not+不定式三.不定式的时态1.不定式的完成式(1)I’msorrytohavegivenyousomuchtrouble.(2)Sheseemstohaveforgottenwhatshewaslookingfor.Conclusion：完成时表示的动作发生在谓语动词表示的动作。之前2.不定式的进行式(1)Heseemstobeeatingsomething.It’snicetobesittingherewithyou. Conclusion：一般进行时表示的动作正在进行，与谓语动词表示的动作同时发生。3.不定式的完成进行式Sheissaidtohavebeenworkingontheproblemformanyyears.据说她研究这问题有好多年了。Conclusion：完成进行时表示动作从过去开始并延续至现在。四.不定式的被动式1.Thenewdrugistobetested(out)on500overweightpatientsnextyear.2.Thecompany’snewcarhastobedesignedintwomonths.Conclusion:不定式的被动式由“tobe+过去分词”构成。当不定式与逻辑主语之间是被动关系时，要用不定式的被动式。Summary:动词不定式的时态和语态形式主动被动一般式进行式完成式完成进行式todotohavedonetobedoingtohavebeendoingtobedonetohavebeendoneHomework:1.Reviewtheinfinitive.2.FinishExercises3onPage.5.