英语：选修6 Unit5 The power of nature-Grammar课件(新人教版).ppt

1、Grammar,1.Reading aloud is very helpful. 2.We have to prevent the air from being polluted. 3.The film is exciting. 4.The man speaking to the teacher is our monitors father. 5. They kept me waiting at the gate.,主语,宾语,表语,定语,宾语补足语,找出下面 ing形式在句子中所充当的成分,6.Having done his homework, he played basket-ball.

2、7.Being a League member, he is always helping others. 8.Playing all day, you will waste your valuable time. 9.He dropped the glass, breaking it into pieces. 10.The students came into the lab, following their teacher.,完成后（时间状语）,作为（原因状语）,如果（条件状语）,结果状语,伴随状语,小结-ing 形式的用法,1)可以有名词作用,在句中做主语、宾语、表语； 2)可以有形容词

3、作用，在句中做定语、表语或宾语补足语； 3) 可以有副词作用，在句中作状语。,ing 做状语,可表示时间、原因、结果、条件、让步、方式或伴随,1.分词 (短语) 作状语时, 其逻辑主语必须与句子的主语一致。如果不一致，必须用独立主格结构来表示，也就是在分词前面加上它的逻辑主语。,使用- ing形式需注意的几个问题。,Walking in the street, I happened to meet my old friend.,The train having gone, we had to wait another day. （the train逻辑主语 + having gone 即为独立

4、主格结构）,2.分词短语做状语时，前面可以加上连词或介词，但是分词短语和句子之间不能用并列连词(如but，and)，因为并列连词接的是两个并列成分，而分词短语只是全句的一个状语部分，分词和主句之间可用逗号。,例如:误: Having been told many times, but he still couldnt understand it.正: He was told many times, but he still couldnt understand it. 或 Having been told many times, he still couldnt understand it.,

5、3.-ing的一般式和完成式现在分词都可以表示先后接连发生的动作。在可能引起误解的场合应该用完成式现在分词表示先发生的动作。,Having brushed his teeth, Mr. Brown came downstairs for breakfast. 布朗先生刷过牙, 就下楼来吃早饭。(此句如写成: Brushing his teeth, Mr. Brown came downstairs for breakfast. 可能指 “边刷牙, 边下楼 。),4.分词的否定形式是在分词短语前面加上 not, never等否定词构成。,Not knowing how to find the s

6、ubway, I asked a policeman for help.,分词作状语时， 如果主语和分词动作构成的是“主谓关系”，我们用ing分词； 如果主语和分词动作构成的是动宾关系，我们就用-ed分词。,如何区分使用ing分词和-ed分词,1_by some officials, Napoleon inspected his army. 2._ others, John came into the hall, too. A. Followed B. Following C. Being following D. Having been followed 3. The trainer arr

7、ived and _ by six little dogs. followed B. was following C. following D. was followed,A,B,D,4. _ more attention, the trees could have grown better. 5. _ all his time to teaching, Mr. Li almost forgets his wife and son. Give B. To give C. Giving D. Given,D,C,6. There were 12 persons in the bus, _ a b

8、aby. 7. There were 12 persons in the bus, a baby_. A. to include B. including C. included D. being included,B,C,8. The man _ Zhaosan used to live here. 9.The man _ himself Zhaosan used to lived here. called B. calling C. to call D. call,A,B,10._ from the hill, the park seems more beautiful. 11._ fro

9、m the hill, youll find the park more beautiful. 12._ from the hill, and youll find the park more beautiful. 13._ from the sky in a plane and the city is very beautiful. A. See B. Seen C. Seeing D. To see,B,C,A,A,14. He often see them _ football on the playground. 15. The missing boys were last seen _ near the river. playing B. played C. play D. to play,C,A,16. The secretary worked late into the night, _ a long speech for the president. 17. The secretary worked late into the night and _ a long speech for the president. to prepare B. preparing C. prepared D. prepare,B,C,18.”Cant you read?”