第1个回答 2009-12-01
Step1: revision. Revise the important words, phrases and important sentences.
Step2: 归纳总结动词ing形式作状语的特点 :
( Read sentences 1-4 from the passage. Compare them with the rewritten sentences a-d
1 Will put down his shopping bag and held out his hand.
2 Will, still watching, saw the cat behave curiously.
3 He crossed the road, keeping his eyes on the spot where the cat had been investigating.
4 He pushed his shopping bag through, and then scrambled through himself.
a Putting down his shopping bag, Will held out his hand .
b Will watched and saw the cat behave curiously .
c He kept his eyes on the spot where the cat had been investigating and crossed the road .
d Pushing his shopping bag through , he scrambled through himself.
Answer the questions about the sentences in Activity (1)
1 Which sentences describe two things that happen at the same time?
2 Which sentences describe one thing happening immediately after another?
3 Look at sentences a-d . Do the two parts of the sentences refer to the same person?
学生阅读上面的句子,进行比较和归纳,总结动词ing形式作状语的特点。
Step3: Rewrite the sentences using the -ing form of the underlined verbs.
1The witch leapt into the air and vanished.
2 The man shouted angrily and waved his sword at the stranger.
3 She picked up the cat and rubbed its head affectionately.
4 The bear came out of the bushes , showed its teeth and made a loud noise.
Step4: Complete the sentences with the correct form of the verbs below.
Think know sit see leave
1 On _____ her, the king immediately falls in love with her.
2 He marries her, not _____ who she really is.
3 Before _____ his kingdom, he calls his son to him.
4 After _____ about the situation, he decides to kill the witch himself.
5 While ____ by a pool, Ferdinand sees a frog.
Step5 Rewrite the sentences with the -ing form of the verbs.
1 When he saw the witch, the boy ran away.
On ____________________, ____________________________.
2 Before he starts the war, the king speaks to the prince .
Before __________________, ______________________________.
3 While he was fighting in the war, the prince learns many things.
While ______________________,___________________________
4 After he had spoken to his son, the king went to war.
After ________________________,_____________________________.
5 Because he doesn't know what to do, Ferdinand follows the frog's advice.
Not ___________________________,_____________________________.
Step6 : homework 完成有关练习,巩固课堂知识
step7: 附:动词ing形式作状语用法归纳:
动词-ing形式作状语可以修饰谓语动词或整个句子,表示时间、原因、结果、条件、让步、方式、伴随或补充。
1.表示时间:
动词-ing形式作时间状语,相当于一个时间状语从句。 句首
或
句末 Turning around, she saw a car driving up.
=When she turned around, she saw a car driving up.
她转过身,看见一辆车朝她开来。
2.表示原因:
表示原因的动词-ing形式一般置于句首,相当于一个原因状语从句。 句首
句中或
句末 Being ill, he could not walk any further.
=As he was ill, he could not walk any further.
因为疲倦,他不能再往前走了。
3.表示结果:
动词-ing形式作状语表示一种必然的结果,可扩展为一个含有并列谓语的简单句。 句末 The fire lasted nearly a month, leaving nothing valuable.
=The fire lasted nearly a month, and left nothing valuable.
大火持续了近一个月,几乎没剩下什么值钱的东西。
4.表示条件:
动词-ing形式作条件状语,相当于一个条件状语从句。 句首 Being more careful, you can make fewer mistakes.
=If you are more careful, you can make fewer mistakes.
更细心点,你就会少犯错误。
5.表示让步
动词-ing形式作让步状语,相当于一个让步状语从句。 句首 Knowing all this, they made me pay for the damage.
=Although they knew all this, they made me pay for the damage.
尽管知道了一切情况,他们还是要我赔偿损失。
6.表示方式、伴随或补充说明:
动词-ing形式表示行为方式、伴随情况或补充说明,可以扩展成为一个并列成分。 句末 I stood by the door, not daring to say a word.
=I stood by the door, and did not dare to say a word.
我站在门旁,不敢说一句话。
He was walking along the street, looking this way and that.
=He was walking along the street, and looked this way and that. 他在街上走着,左顾右盼。