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1、一: V-ing 形式由 “doing” 构成, 其否定形式是 “not doing”,Grammar,V-ing 形式,(not) doing,(not) being done,(not) having done,(not) having been done,V-ing 形式在句中作定语和状语是本单元的学习重点。,1. 作定语 表示被修饰者的功能，用途。 the waiting area,the walking stick,2) 表示被修饰者的动作或状态 smiling face moving hand the rising sun,如: The boy standing there is
2、a classmate of mine.,3) 表示 正在进行的动作,The building being built now is our new library.,2. 作状语 可以表示时间, 原因, 条件,结果, 让步，行为方式或伴随动作等。,Using your head, youll find a good way.,条件,1) Four people entered the room ,looking around in a curious way. (伴随动作) 2) Being poor, he couldnt afford a TV set.,(原因),3) Working
3、hard, youll surely succeed.,条件,5) He came running back to tell me the news.,方式,6) (When) Hearing the news, he got frightened. = When he heard the news, he got frightened.,7) The child slipped and fell, hitting his head against the door.,结果,时间,Attention Please,1. v-ing形式作状语时, 它的逻辑主语必须与主句的主语是一致的。,如：He
4、aring the news, he got frightened.,判断对错： waiting for the bus, a bird fell on my head 我等汽车时，一只鸟落到我头上。,Not having received an answer, I wrote to him again.,2. 如果v-ing形式表示的动作，发生在谓语所表示的动作之前, 就需要用完成形式。,3. v-ing形式作结果状语，表一种必然的，意料之中的结果；,The child slipped and fell, hitting his head against the door.,4. 一些固定的
5、v-ing 短语：,Generally speaking, the book is not very difficult.,Judging from/by ,Talking of ,Considering ,高考链接,1. As the light turned green, I stood for a moment, not _, and asked myself what I was going to do. A. movedB. moving C. to move D. being moved,2. The student sat there, _ what to do. A. does
6、nt knowing B. didnt knowing C. not know D. not knowing,3. Dont sit there _ nothing. Come and help me with this table. A. do B. to do C. doing D. and doing,5. _ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home. A. To wait B. Have waited C. Having waited D. To h
7、ave waited,用动词的-ing形式改写下列句子。 1. The picture that hangs on the wall is a world-famous one. The picture _ on the wall is a world-famous one. 2. Because he hadnt received an answer, he decided to write another letter to him. _ _ _ an answer, he decided to write another letter to him.,hanging,Not having
8、 received,3. When he sees the mountain, he always thinks of his hometown. _ the mountain, he always thinks of his hometown.,Seeing,5. He hunted all the shops to look for a nice present for his mother. He hunted all the shops, _ _ a nice present for his mother.,looking for,1. Having not seen the film
9、, I cant tell you what I think of it. 2. The men worked for extra hours got an extra pay. 3. Seen from the top of the hill, we find the city more beautiful. 4. Generally speak, facial expressions are helpful communications, too.,Not having,working,Seeing,speaking,单句改错,5. “ Cant you read?” the man sa
10、id, angrily pointed to the notice on the wall. 6. Knocking at the door before entering, please. 7. European football is played in 80 countries, made it the most popular sport in the world.,pointing,Knock,making,1. “We cant go out in this weather”, said Bob, _ out of the window. A. looking B. to look
11、 C. looked D. having looked,2. The bell _ the end of the period rang, _ our heated discussion. A. indicating; interrupting B. indicated; interrupting C. indicating; interrupted D. indicated; interrupted,3. _ such heavy pollution already, it may now be too late to clean up the river. A. Having suffered B. Suffering C. To suffer D. Suffered,4. The picture _ on the wall is painted by my nephew. A. Having hung B. hanging C. hangs D. being hung,