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1、,Unit 4 Body language,高中英语必修四,Grammar（2）,新知讲解,新知讲解,动词ing,阅读下列句子，体会蓝体部分的用法,1Then Akira Nagata from Japan came in smiling，together with George Cook from Canada. 2When Darlene Coulon from France came dashing through the door.,新知讲解,动词ing形式作状语的注意事项,非谓语,1动词ing形式的时态 动词ing(短语)作状语时，要注意它的时间性，即注意是用其一般式(doing)还
2、是用完成式(having done)。 当动词ing形式的动作与谓语动词的动作同时发生或几乎同时发生时，用一般式。当有先后关系，用完成式。,新知讲解,动词ing形式作状语的注意事项,非谓语,Walking in the street，I met an old friend of mine. 我正在大街上行走时，遇到了一位老朋友。(walking和谓语动词met同时发生) Having finished the letter，he went to post it. 他写完信后就把它寄了出去。(having finished是先发生的，went是后发生的),新知讲解,动词ing形式作状语的注意事项
3、,非谓语,2动词ing形式的否定式 动词ing形式的否定式是在它的前面加not。 Not seeing John，I asked where he was. 我看不见约翰，于是问他在什么地方。,新知讲解,动词ing形式作状语的注意事项,非谓语,3动词ing形式的语态 使用动词ing形式的主动式还是被动式，这主要取决于现在分词和句子主语间的关系。句子的主语就是分词的逻辑主语。 Having been shown around the factory，they were very happy. (they是被带领着参观) 被领着参观了工厂后，他们很高兴。,新知讲解,动词ing形式作状语的注意事项,
4、非谓语,4动词ing形式作评注性状语 少数动词ing(短语)并不表示主语的动作，即不存在其逻辑主语必须和句子主语一致的问题，只是表示说话人的态度。 generally/frankly/properly.speaking一般/坦白/恰当说来 judging from/by.从判断 considering.考虑到 supposing.假设,巩固练习,.单句改错 1He was caught in the rain，thus made himself catch cold. _ 2Having shown around the factory，they were very happy. _ 3Mary sat by the window of the classroom and reading a book. _ 4Use your head，youll find the right way to do it. _ 5Heard the news，we jumped with joy. _,mademaking,Having后加been,去掉and或readingread,UseUsing,HeardHearing,课堂小结,动词ing形式作状语,时间状语,原因状语,条件状语,让步状语,方式或伴随状语,结果状语,
