牛津英语模块五Unit1 grammar五 课件.ppt

GrammarandusageTo-infinitiveFigureoutthemeaningsoftheproverbsandtheusageoftheunderlinedpart.I.Theto-infinitivecanbe学好英语很难。________________isdifficult.=Itisdifficult______________.再见到你真高兴。It’sagreatpleasuretoseeyouagain.Tip:如要说明动词不定式的动作的执行者可在不定式前加一个介词for引导的短语其句型结构为：Itis+形容词+forsb+不定式短语。如：MrWhitethinksthatitisrightforrichpeopletohelppoorpeople.但如果表语是kindnicecleverwisefoolishcareless等描述动作执行者的性格品质的形容词时则应在不定式前加一个of引导的短语而不用for句型结构为:Itis+形容词+ofsb.+不定式短语。如：It’skindofyoutohelpmewithmymath.固定结构Ittakes/tooksb.sometimetodosth….(做某事花费某人多少时间)。如：他花了5个月的时间学开车。Ittookhimfivemonthstolearntodrive.动词不定式还可以和whatwherehowwhenwhich等连接代词（副词）连用在句中做主语。如：如何使用电脑是个问题。____________________isaproblem.2.object疑问词+带to的不定式结构可作动词宾语。这些疑问词是whowhatwhenwherewhichhow等。和这结构连用的动词（词组）有findoutdecideknowtellforgetunderstandwonder等。如：我不知道如何用电脑。Idon’tknowhowtouseacomputer.Wehaven’tdecided______________.(什么时候开始）1.Icouldn’tdecide__________________.(买哪辆自行车)2.Askhim____________.(什么时候把它打开)3.Itoldher_____________.(怎么找到我)3.objectcomplement2)动词+宾语+不带to的不定式作宾语补足语。用于这结构的是使役动词和感官动词如feelhearlistentoseelookatwatchnoticeletmakehave等。这些动词后宾语补足语不用to;在动词help后的不定式宾语补足语to可有可无。如：我们看男孩子们踢足球。Wewatchedtheboysplayfootball.Itwasrainingheavilyoutside.Thefathermade_________________(让孩子们呆在房间里）intheroom.Tip:4.attribute若动词不定式是不及物动词时则要带上与之搭配的介词构成及物动词短语。如：Shehasnohousetolivein.没有要担心的事了。Thereisnothingtoworryabout.1.Ihaven’tgotachair_______.A.tositB.fortositonC.tositonD.forsitting2.WhenIhandedthereporttoJohnhesaidthatGeorgewastheperson__.tosendB.forsendingitC.tosendittoD.forsendingitto4.Let’sfindabox_____.A.forustoputtheboxinitB.toputthebooksinC.toputthebooksinitD.toputthebooks5.Becauseofairpollutionbeingreducedthiscityisstill_____