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《不定式的时态和语态.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、不定式的时态和语态不定式四大时态两大语态 以动词write为例主动语态被动语态一般式towritetobewritten进行式tobewriting完成式tohavewrittentohavebeenwritten完成进行式tohavebeenwriting注意①不定式的否定形式是not+不定式如：Janeaskedmenottomentionit.Hedecidednottodoit.Trynottobelate.Thisissomeinformationnottosay.②不定式前面可以加wh-疑问词，如
2、howtodo,whentoleave,whattosay等等用做主语，宾语，表语做主语Whentostarthasnotbeendecided.Howtoearnmoneyisaquestionthatallofusarecareof.做宾语Idon’tknowwhattodo.Hedidn’tknowwhethertogoornot.做表语Thedifficultywashowtocrossthebigriver.Thequestioniswheretogo.1.不定式的进行式不定式的进行式所表示的动作与
3、谓语动词的动作同时发生Itisnicetobeworkingwithyou.Thomaswasheardtobequarrellingwithhiswifelastnight.2.不定式的完成式a可以做主语，表语，宾语，定语，状语等做主语Tohaveknownherisaprivilege.做表语Theaimofphysicalcultureistobuildupthepeople’shealth做定语Thereisnoneedtohaveboughtanewpairofshoesforme.做状语Heist
4、ooyoungtohaveseentheoldsociety.b表示过去未实现的动作I’dliketohavegonewithyouonyourtriplastweekend.Weplannedtohavefinishedtheworkbeforesupper.Weweretohavesailednextmorning.3.不定式的完成进行式表示在谓语动词的动作之前一直进行的动作Theboyissaidtohavebeenplayingthepianosincehewasthreeyearsold.Hewas
5、saidtohavebeenwritingthisnovelforabouttwentyyears.4不定式的被动式主动语态表示被动含义Thehouseistolet.I’mnottoblame.Thereisnotimetolose.It’stoohottoeat.Thereasonisnotfartoseek.I’mreadytoleave.不定式做定语1.不定式作定语放在被修饰词后面。a.Weneedtocreatanidealenvironmentinwhichtoliveandwork.b.Ther
6、eisnoneedtobotherhimwithsuchtrifles.c.Haveyougotanythingtodeclare?不定式常修饰下列名词或代词作定语：ablity,ambition,evidence,right,something,way,person,place,reason,intention,tendency……e.g:你们最后将有机会提出任何问题。Youwillhavetheopportunitytoaskanyquestionsattheend.2.由only,last,next以及
7、序数词修饰或最高级形容词修饰的名词，可带不定式作定语。a.Thisisthethirdcaseoftyphoidtooccurinthistown.这是本镇发生的第三例伤寒病例。b.Idon’tthinkheisthebestpersontodothejob.我不认为他是做这件事的最佳人选。eg:他到了车站结果发现火车已经开走了。Hegottothestationonlytofindthatthetrainhadleft.有些动词不定式只起单纯的修饰作用，如，①表示时间的词有:time,week,year…②
8、表示次序的词有：first,last,…③其他名词有：wish,promise,planeg:该走了！It’stimetogo!eg:他是第一个来的老师。Hewasthefirstteachertocome.3.有时不等式及其所修饰的名词有动宾关系，此时不定式后面不能再用代词指代被修饰的名词。a.It’sagoodsubjecttowriteabout.这是写作的好材料。b.Thesmelltell
