2017--2018学年人教版必修四Unit 4 body language grammar学案
2017--2018学年人教版必修四Unit 4 body language grammar学案第2页

  被雨淋后他感冒了。

  I hurried to school, only to find it was Sunday.

  我匆忙赶到学校,结果发现是星期天。

  5.作让步、方式和伴随状语

  现在分词作让步、方式和伴随状语时,说明动作发生的背景和情况。作伴随状语时,表示分词的动作和主句的动作同时发生,此时它可转换成并列句。

  Mary sat by the window of the classroom, reading a book.

  =Mary sat by the window of the classroom and was reading a book.

  玛丽坐在教室的窗边读一本书。

  

  即时演练1

  1-1.用现在分词作状语改写下列句子

  ①When she turned around, she saw a car driving up.

  →Turningaround , she saw a car driving up.

  ②They stood there and waited for the bus.

  →They stood there, waitingfor the bus.

  ③As he was ill, he couldn't attend the meeting.

  →Beingill,_he couldn't attend the meeting.

  1-2.完成句子

  ④(湖南高考改编)There is no greater pleasure than lying on my back in the middle of the grassland, staring_at_the_night_sky (凝视着夜空).

  ⑤Being_too_old (因为年老), he couldn't take a plane.

  

  

语法点二 现在分词作状语的注意事项   1.现在分词的时态

  现在分词作状语时,要注意分词的时间性,是用现在分词的一般式(doing),还是用完成式(having done)。

  (1)当现在分词的动作与谓语动词的动作同时发生时,用分词的一般式。

  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)

  (2)当现在分词的动作先发生,而谓语动词的动作后发生时,用分词的完成式。

  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)

  

  即时演练2

  用所给动词的适当形式填空

  ①Seeing_(see) nobody at home, he decided to leave them a note.

  ②Having_suffered (suffer) such heavy pollution, it may now be too late to clean up the river.

  ③Having_lived (live) in Beijing for years, I almost know every place quite well.

  ④(江西高考改编)Having_spent (spend) nearly all our money, we couldn't afford to stay at a hotel.

  2.现在分词的语态

  使用现在分词的主动式还是被动式,这主要取决于现在分词和句子主语之间的关系。句子的主语就是分词的逻辑主语。

  Having been shown around the factory, they were very happy.(现在分词的被动式)

  被领着参观了工厂后,他们很高兴。

  Having finished his homework, he went to bed.(现在分词的主动式)

  完成了作业后,他上床睡觉。

  

即时演练3