英语复习《动词不定式》PPT课件

动词不定式,不定式有标记，to与动原连一起。没有人称数变化，动词特点它具备。主宾定状表补语，唯独做谓不可以。not加上不定式，否定结构要牢记。疑问词与不定式，构成短语有意义。仔细推敲与思考，准确判断有依据。,肯定：to+V.原或者(to)+V.原否定：not/never+(to)+V.原,Helikestoreadnovels.Isawhimcome.Wedecidednottobuythathouse.4)Itisinterestingtoflyakite.5)Pleaselethimnotgothere.,动词不定式的结构,作主语,Tohearyourvoiceissonice.Tostudyhardisveryimportant.,Itissonicetohearyourvoice.,Itisveryimportanttostudyhard.,不定式作主语时，通常用it作形式主语，把真正的主语放在后面。,注意:,1、Itis+adj.for/ofsb.todosth.,It+be+adj.+for/ofsb.todosth.for:adj.多为描述不定式行为的特征（important/necessary/interesting等.）of:adj.多为描述主语（人）的品质特征（kind/nice/friendly/wise/foolish等.）,作主语,Itiseasy_hertolearnEnglishwell.Itisclever_youtosolvetheproblem.,of,for,2、Ittakessb.sometimetodosth.,Ittakesmethreehourstofinishthehomeworkeveryday.,作主语,我每天花去三个小时完成家庭作业。,Ispendthreehoursfinishingthehomeworkeveryday.,3、Itis+n.(forsb)todosth.,Itismypleasure/duty/jobtohelpyouwithyourEnglish.,作主语,4、用在谚语中,Toseeistobelieve.,Tosayiseasy,buttodoishard.,作主语,1、Itisnecessary_ustolearntowait.(of/for)2、Itwascareless_metobreakthecup.（of/for)3、Ittookthem1,000yuan_thistable.(buy)4、Itismypleasure_theboxforyou.(carry),tobuy,for,of,tocarry,练习,5、轮到我们打扫教室了。Itisourturn_6、Towastetimeistoshortenlife.（翻译成中文）,tocleantheclassroom.,浪费时间就是缩短生命。,练习,1、动词+todosth.常用动词有：want/wish/like/wouldlike/hope/plan/try/decide/learn/need/agree/begin/start/forget/remember/manage/seem/fail/promise等,1、Ihopetofinishittomorrow.2、Sheplanstogoandteachinthecountry.,作宾语,2、动词疑问词+todo,Idontknow_next.Shecantdecide_.,作宾语,2、她不能决定买哪本书。,1、我不知道接下来该做什么。,whattodo,whichbooktobuy,=Shecantdecidewhichbooksheshouldbuy.,1、Dontforget_.(关灯)2、Ihappened_whenhecalledme.（出去）3、Idontwant_.(依赖别人）4、Samislearning_.(怎样开车）5、Wepromise_theenvironment.(保护),toturnoffthelight,togoout,todependonothers,howtodriveacar,练习,toprotect,1、动词+宾语（sb./sth.)+todosth.,1、Theteacheraskedhertoanswerthequestion.2、Thedoctortoldmetohaveagoodrest.,作宾补-对宾语进行补充说明,常用动词有：ask,tell,teach，wish，allow,want，encourage，warn等,动词多为感官动词、使动词。一感：feel二听：hear,listento三使：make,let,have四看：see,notice,watch,lookat,Johnsmothermakeshimplaythepianoeveryday.,被动：,John_playthepianoeveryday.,ismadeto,2、动词+宾语+不带to的不定式,1、Lethim_theworkatonce.(finish/tofinish)2、Doyoulikelisteningtootherpeople_?(talk/talking/totalk)3、Jimwasseen_theroom.(enter/toenter)4、Pleasetellher_hereontime.(come/tocome),finish,talk,toenter,tocome,练习,5、Illhelpyou_thisproblem.(tosolve/solve)6、Iwishyouwillstaywithus.(改成简单句）7、Herstorymadeuslaugh.(改成被动句）,(to)solve,Iwishyoutostaywithus.,Weweremadetolaughbyherstory.,1、主语+be+todosth主语多为duty/wish/hope/idea/plan/ambition/dream/work/job等名词,1、Myambitionistobeasinger.2、Hisworkistocleantheclassroomeveryday.,作表语,我的梦想是成为一名歌手。他的工作是每天清扫教室。,2、谚语中,1、Toknoweverythingistoknownothing.2、Toseeistobelieve.,放在被修饰词的后面,Ihavealotofworktodo.Iwanttofindsomethingtodrink.,作定语,不定式为不及物动词时后面应有必要的介词。,Imlookingforahotel_.A.stayB.stayatC.tostayD.tostayat,D,位置：,Hehasntgotahousetolive_.,Ihavenopenstowrite_.,in,with,1、原因状语:主语+be+adj.(表情感)+todosth.(happy/gladangry/sorry/sad/afraid等),Imsorrytohearthat.,作状语,Imgladtoseeyou.,2、目的状语,Thesoldierranintotheroomtosavethegirl.,_thesoldierrunintotheroom?,Whydid,Manyparentssendtheirchildrenabroad_.(深造学习),tofurthertheirstudies,3、结果状语too+adj./adv.+todosth.adj./adv.enoughtodosth.,Youaretooyoungtodothisjob.,Heranfastenoughtocatchthebus.,动词不定式可以充当的句子成分,1、作主语,2、作宾语,3、作宾语补足语,4、作表语,5、作定语,6、作状语,AllIdidwastogivehimsomeadvice.Hisdreamistotravelallovertheworld.Lucyneedsafriendtoplaywith.Hewasthelastguesttoarrive.Itsinterestingtoreadasciencefiction.,下列不定式作何种成分？,（表语）,（表语）,（定语）,（定语）,（主语）,Hewasgladtoseeyou.Myfatherofferedtobuyacomputerforme.HeintervieweddetectiveKentogetsomeinformation.Thedoctoraskedhimtohavemorefruitandvegetables.,（状语）,（宾语）,（状语）,（宾语补足语）,下列不定式作何种成分？,1、习惯于beusedto_被用于beusedto_Waterisusedto_(put)outfires.Iamusedto_(take)awalkaftersupper.2、preferto比起来更喜欢比起游泳来，我更喜欢跑步。Iprefer_to_.3、lookforwardto期待，盼望Imlookingforwardto_(visit)Beijingagain.,介词to与不定式to的区别,put,taking,runningswimming,visiting,do,doing,1.Thelightintheofficeisstillon.-Oh,Iforgot.A.turningitof