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1、Unit4BodyLanguagePeriod3单元语法单元语法复习非谓语动词精讲精练课件动词ing形式作状语动词的ing形式作状语动词的ing形式及其短语可在句子中作状语来修饰谓语动词或整个句子，用来表示动作发生的时间、原因、结果、条件、方式或伴随情况等。1．动词的ing形式或其短语作状语往往修饰谓语动词表示的动作，相当于相应的状语从句或并列句。(1)表示时间，作时间状语，相当于时间状语从句。(有时可以在动词的ing形式前加一个表时间的连词，如when，while等)Lookoutforcarswhencrossingthestreet.过街时注意车
2、辆。Walkinginthestreet,Icameacrossanoldfriendofmine.(=WhenIwaswalkinginthestreet,Icameacrossanoldfriendofmine.)Whilewaitingforthebus,hereadacopyofChinaDaily.(=Whilehewaswaitingforthebus,hereadacopyofChinaDaily.)(2)表示原因，作原因状语，相当于原因状语从句。Notknowinghowtogetthere(＝AsIdidnotknowhowtoget
3、there)，Ihadtoasktheway.因为不知道如何去那里，我只得问路。Beingill,hedidn’tgotoschool.(=ashewasill,hedidn’tgotoschool.)既然你是一个学生，你就应该努力学习。Beingastudent,youshouldstudyhard.(=Sinceyouareastudent,youshouldstudyhard.）Thinkinghemightbeathome,Icalledhim.(AsIthoughthemightbeathome,Icalledhim.)由于想到他或许在家，所
4、以我就给他打了电话。(3)表示条件，作条件状语，相当于条件状语从句。Drivingtoofast(＝Ifyoudrivetoofast)，youwilldamagethecar.如果你开车太快，你会把汽车弄坏的。Walkingahead,youwillseeawhitehouse.一直往前走，你就会看到一座白色地房子。Usingyourhead,youwillfindaway.(=Ifyouuseyourhead,youwillfindaway.)(4)表示伴随状况或行为方式，相当于并列复合句。Theywentintothehall，talkingan
5、dlaughing.(＝Theywentintothehallandweretalkingandlaughing.)他们又说又笑地走进大厅。Hestoodleaningagainstthewall.(＝Hestoodandleanedagainstthewall.)他斜靠(lean)着墙站着。Hesatonthesofa,watchingTV.(=Hesatonthesofa,andwatchedTV.)(5)表示结果，作结果状语，相当于结果状语从句。Europeanfootballisplayedin80countries，makingitthemo
6、stpopularsportintheworld.(＝Europeanfootballisplayedin80countries；asaresult，itbecomesthemostpopularsportintheworld.)欧式足球运动在80个国家开展，这使它成为世界上最受欢迎的体育运动。Thesongissungalloverthecountry,makingitthemostpopularsong。全国到处在传唱这首歌曲，使它成了一首最受欢迎的歌曲。Hermotherdiedin1990,leavingherwithheryoungerbro
7、ther.(=Hermotherdiedin1990,andleftherwithheryoungerbrother.)(6)与逻辑主语构成独立主格：Iwaitingforthebus,abirdfellonmyheard．我等汽车时，一只鸟落到我头上。Alltheticketshavingbeensoldout,theywentawaydisappointedly.所有的票已经卖光了，他们失望地离开了。Timepermitting,we'lldoanothertwoexercises.如果时间允许，我们将做另两个练习。有时也可用with(withou
8、t)+名词(代词宾格)+分词形式Withthelightsburning,hefellasle
