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《英语人教版九年级全册动词不定式中考常考用法复习.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、中考复习系列动词不定式用法归纳动词不定式的主要用法一、动词不定式没有人称和数的变化。二、动词不定式构成:带to:“to+动词原形”有时不带：helpdosth/helptodosth。否定形式:“not+动词不定式”三、常考用法(1).在一些常用结构中Itis＋adj．(形容词)＋todosth.Itis＋n．(名词)＋todosth.句型中it仅作形式主语，真正的主语为todosth。Ifounditverydifficulttogetajob.it是形式宾语,真正的宾语是后面的动词不定式。It’s++(for+sb.)+todosth.It’s+
2、difficult,hard,easy,possible,impossibleimportant,`+(of+sb.)+todosth.clever,wise,kind,good,right,nicewrong,bad,cruelsilly,stupid,foolishcareful,careless例.e.gItishard___youtodoitwell.=Foryoutodoitwellishard.Itiskind___youtohelpme.=Youarekindtohelpme.forofIt’sclever__himtosayso.It
3、isimpossible__youtofinishit.Itwaswrong__youtotellalie.Itwascareless___youtomakesomanymistakesintheexam.Itissilly__hertodosuchathing.Itisimportant___youtolearnEnglishwell.offorofofoffore.g(2)感观类等意义的动词(see,watch,hear,feel,make,let,have,observe,notice,help等)后不带to的不定式作宾补。如：Thebossm
4、akesthemwork16hoursaday．Iheardhersinginthenextroom．提示板:若变成被动语态,在上述结构中,不定式符号to要加上。如:Theyaremadetowork16hoursadaybytheboss．Shewasheardtosinginthenextroom．(3)表目的：例:HegotupearlytocatchthefirstTopasstheexam,hestayeduplatelastnight(此处的To可换为Inorderto)Whatwecantohelpprotecttheendangere
5、danimals.返回(4)“疑问词＋不定式”用法不定式前可带what，who，which，where,when,how,whose,等疑问词。例:Hedidn’ttellmewheretogo.Idon’tknowwhattosaynow.Idon'tknowwhattodonext.Hetaughtushowtousethecomputer．返回
