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《Unit 2《Period Four Grammar and usage》课件2》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、Unit2Whatishappinesstoyou?非谓语动词经常作状语。动词不定式常用作目的状语，动词-ing或动词-ed则常用作原因、时间、方式、条件等状语。Todofirstaidcorrectly,youhavetostudywithateacher.Inordernottowasteelectricity,weturnedthelightoff.Checkyourcompositioncarefullysoastoavoidmistakes.1●我们用动词不定式表示目的。有三种形式，可互换：todo,inordertodo,soastodo(不用于句首)1.—Didtheb
2、ookgivetheinformationyouneeded?—Yes.But____it,Ihadtoreadtheentirebook.tofindB.findC.tobefindingD.finding2.______thiscake,you'llneed2eggs,175gsugarand175gflour.A.HavingmadeB.MakeC.TomakeD.Making3Allthesegiftsmustbemailedimmediately_____intimeforChristmas.inordertohavereceivedB.inordertoreceiveC.
3、soastobereceivedD.soastobereceiving析:soasto(不能放句首),to,inorderto作目的状语可以放在句首或句中。4Hehurriedtothestationonly___thatthetrainhadgone.A.tofindB.findingC.foundD.tohavefound补充1:在so…asto,such…asto,onlyto…结构中不定式作结果状语，其中常用onlytodo…来表示末曾预料到或令人不快的情况，其动作发生在谓语动作之后。5Ifeelgreatlyhonored____intotheirsociety.A.tow
4、elcomeB.welcoming C.tobewelcomedD.welcomed补充2:不定式常放在表示情绪反应的形容词后作原因状语。如：happy,sorry,glad,sad,surprised,disappointed.不定式不放在句首。补充3:不定式常与too或enough连用，在句中作状语。例如：Theboyisn’toldenoughtogotoschool.=Theboyistooyoungtogotoschool.2我们可以用动词-ing或动词-ed作状语。●动词-ing或动词-ed可用来表示缘由或起因。◎Beingastudent,Imustworkhard.◎
5、Notknowingwhattodonext,heturnedtotheteacherforhelp.◎Followedbyastranger,shefeltfrightened.◎InterestedinChineseculture,TonycametoChinalastyear.1)不知道他的地址，我们没法与他取得联系。_____________________,wecouldn’tgetintouchwithhim.2)在这个学校已经学习一年了，我非常了解这个学校。______________________________________,Iamfamiliarwithit.
6、NotknowinghisaddressHavingstudiedinthisschoolforoneyear3)深深地被这个故事感动，激动的人们停止了争吵。_______________________,theexcitedpeoplestoppedquarrellingwitheachother.4)受到这人演讲的鼓舞，这个年轻人下决心要更努力工作。______________________,theyoungpeoplemadeuptheirmindstoworkharder.DeeplymovedbythestoryEncouragedbythespeechWorkingin
7、thefactory,hewasanadvancedworker.Walkingontheroadsinthecountryside,Icanseeavarietyofwildflowers.Seenfromthehill,theparklooksmorebeautiful.Askedwhenhewouldarrive,hesaiditwasuncertain.●动词-ing或动词-ed可用来表示时间。1）当听到这个消息的时候，他们都高兴的跳了起来。___
