人教版选修七课件Unit 1 Living Well Grammar

GrammarTheinfinitive 在句中的成分1.Toobeythelawsisimportant.2.Mywishistobeadoctor.3.Iwanttodoitmyself.4.Wethinkitimportanttoobeythelaws.5.Hehasalotofhomeworktodo.6.Hecametohelpmewithmymaths.7.Weallowyoutoenterthehall. 在句中的成分主语有时it作形式主语真正的主语是不定式Itisimportanttoobeythelaws.表语一般紧跟在系动词be,seem,remain,appear,get等的后面宾语不定式用在及物动词的后面例如agree,ask,decide,happen,promise等等。宾语，it为形式宾语，真正的宾语为不定式 在句中的成分定语。不定式所修饰的名词或者代词和不定式形成动宾或者主谓关系Afactorywhichistoproduceelectricitywillbesetupnextyear目的状语，不定式还可以做结果，原因状语Becarefulnottocatchacold.Ihurriedtogetthereonlytofindhimout.宾补。不定式作宾补的时候有时候可以省略to常用在以下动词之后作宾补advise,allow,wish,Order,want等等。 不定式的时态不定式的一般式todoIamgladtoseeyou.hehasdecidedtogivehersomemoney.表示的动作通常与谓语所表示的动作或状态同时或者几乎同时发生，或是在他之后发生 不定式的进行式tobedoingIamverygladtobeworkingwithyou.Hepretendedtobeworkinghardwhenhisbosspassedhim.表示的动作通常与谓语动词表示的动作同时发生 不定式的完成式tohavedoneHehappenedtohaveseenthefilmbeforeThenovelisbelievedtohavebeentranslatedintoChinese.不定式所表示的动作发生在谓语动作或状态之前 Hewantedtohavemetyouattheairport,buthedidn’tgetthereintime.Weplannedtohavedonegooddeedsforthepoorpeoplelastmonth.表示过去没有实现的期待或者计划hoped,promised,wanted,wished,expected,planned…不定式的完成式tohavedone Iwouldliketohavegivenherthegift.Hewouldliketohaveplayedtheviolinattheconcert.不定式的完成式在wouldlike后边表示未能实现的愿望。不定式的完成式tohavedone 不定式的语态主动语态todo被动语态tobedoneItisanhonorformetobeinvitedtoattendthemeeting.Everyonelikestheherotobepraised. 省略to与省略doWeaskedhimtostaytillthenextday,butherefusedto.Areyouateacher?Yes,andIhavetobeWhatwewanttodonowisliedownandhaveagoodrest.Ididn’tsayanythingbuttomakeagesture. 固定词组和句型1.prefern.(doing)ton.(doing)2.prefertodosthratherthandosth3.wouldratherdo4.wouldrather+句子（虚拟语气）5.advise(allow,permit,forbid)sbtodoadvise(allow,permit,forbid)doing 不定式做定语注意:作定语的不定式如果是不及物动词,或者不定式所修饰的名词或代词是不定式的地点、工具等,不定式后面须有相应的介词。Heislookingforaroomtolivein.Thereisnothingtoworryabout.但是，不定式如果修饰的词是place,time,way的时候，介词可以省略Hehasnomoneyandnoplacetolive. 不定式做宾补时省略to的情况不定式在感官动词(feel,hear,listento,watch,lookat,notice,observe)使役动词(let,have,make)后边坐宾补时，省去to,但是在被动语态中要还原to.Letmehearyouplaythepiano.TheymadetheworkersworkdayandnightTheworkersweremadetoworkdayandnight.