资源描述：
《非谓语动词的句法功能讲解备课讲稿.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、非谓语动词的句法功能讲解常用不定式的惯用句1.Itis+adj.+todostheg:Itisnotsafetodrinkthepollutedwater.Itis+adj.+ofsbtodosthforsbtodostheg:Itiskindofhimtohelp.(Heiskind.)Itisimpossibleforhimtohelpus.(Heisimpossible.x)2.Itisa/an+n(crime,mistake,pity,shame,goodidea)+todosth eg:Itisanoffencetotakephotoshere.3.
2、Ittakes+…todostheg:Itwouldtakeyearstorebuildthecastle.常用不定式的惯用句常用-ing的惯用句1.Itisnouse/goodwaitingforhim.2.Mysister’sfallingillworriedmymothergreatly.逻辑主语形容词性物主代词名词所有格二 作表语Ａ.不定式说明主语的内容表具体某次动作或即将发生的动作．1.Myhobbyistocollectoldcoins.The“to”isoptionalinsentencessuchas:Theonlythingtodo/wecan
3、dois(to)writetohim.Allwecandoistowritetohim.2.OuraimistobuildChinaintoapowerful,modernsocialistcountry.Ｂ.–ing主语常是表示事物或动作的名词－说明主语的内容（动名词）HerjobisteachingEnglish.主语常是表示事物的名词－表示主语所具有的特征（现在分词）Thenewsisexciting.Ｃ.过去分词－表示主语所处的状态主语常是表示人的名词Iammarried.三 作宾语Ａ.不定式某些动词后面要接不定式作宾语:intend,decide,wi
4、sh,want,refuse,promise等注意：help(to)dosth在expect,mean,intend,want,like,prefer,hate等之后+theretobeeg:Peopledon’twanttheretobeanotherwar.B.–ing1.某些动词后要接–ing作宾语：admit,avoid,dislike,mind,finish,practise,enjoy,imagine,suggest,feellike,can’thelp,delay,consider,etcWedon’tmindhimexplainingthepro
5、blemagain.（逻辑主语常由名词或代词也可用名词所有格形容词性物主代词）2.某些介词词组之后：befondof,lookforwardto,besorryfor,what/howabout,insiston,havedifficultyin,befor/against,beinterestedin,without,giveup,keepon两种形式都可以但意义不同remembertodosthforgettodosthrememberdoingsthforgetdoingsthmeantodosthtrytodosthmeandoingsthtrydoin
6、gsthstoptodosthgoontodosthstopdoingsthgoondoingsthregrettodosthbeafraidtodosthregretdoingsthbeafraidofdoingsth两种形式意义相同但用法不同start/begintododoingsth(1.动词表心理活动,如realize,understand等用不定式；2.begin与start的进行时态后只接不定式；3.主语为无生命物用不定式Itbegantothunder)need*sth.requiredoing/tobedonewantsth.主语（表物）*be
7、worthdoing常用不定式的惯用语：①Wethinkitimpossibletofinishtheworksosoon.形式宾语(常见动词：believe,consider,find,discover)②动词（ask,decide,discover,findout,forget,know,learn,show,wonder等）+how/what/when等疑问词+todoeg:Hediscoveredhowtoopenthesafe.③but/except(prep.)+todosth./dosth.eg:Hehasnochoicebuttoliedowna
8、ndsleep.Heha
