高中英语分词作状语.doc

明仁教育一对一个性化教案
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必修四:Unit4 V-ing做状语
重点难点
掌握V-ing做状语的用法
2. 现在分词作状语的类型及现在分词作状语的注意事项
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教学过程:
(一).上次课作业检查与分析。
(二).课前热身,检查学生对上堂课的掌握情况。
(三).本次课教学内容:分词作状语的用法
-ing形式作状语,可表示时间、原因、方式、伴随、条件等。如:
1. She sat at the desk reading a newspaper. (伴随)
2. Hang Wei went to school, taking a train. (方式)
3. While reading the book, he nodded from time to time. (时间)
4. Not having received a reply, we wrote again. (原因)
5. Heating water,we can change it into vapor. (条件)
注意:①-ing形式作状语,其逻辑主语应与句子的主语一致。
②-ing形式前可有while, when, unless, though, if等连词。
一、用作时间状语
1. 典型例句
Seeing the cat, the mouse ran off. 见到猫,老鼠就跑了。
The work finished, he went home. 工作做完后,他就回家了。
2. 理解技巧
分词(短语)用作时间状语通常可转换成时间状语从句(引导时间状语的从属连词需根据句意来确定),如上面两句也可转换成:
When [As soon as] the mouse saw the cat, it ran off.
After the work was finished, he went home.
3. 高考实例
When ______different cultures, we often pay attention only to the differences without noticing the many similarities.
A. compared B. pared C. comparing D. pared
【分析】此题答案选C,paring different cultures相当于时间状语从句when pare different cultures。
二、用作原因状语
1. 典型例句
Being very weak, she couldn't move. 她由于身体虚弱而不能行动。
His car broken down, he had to walk. 他的车坏了,所以只好走路。
Much discouraged, she moved on to Beijing. 她很沮丧,搬到了伦敦。
2. 理解技巧
分词(短语)用作原因状语通常可转换成由as, because, since, now that 等引导的原因状语从句,如上面三句也可转换成:
As she was very weak, she couldn’t move.
Because his car was broken down, he had to walk.
Because she was much discouraged, she moved on to Beijing.
3. 高考实例
(1) _____with so much trouble, we failed plete the task on time.
A. Faced B. Face C. Facing D. To face
【分析】答案选A。现在分词短语faced with so much trouble可转换成原因状语从句because we were faced with so much trouble。
(2) ____for the breakdown of the work, Alice was in low spirits.
A. Blaming B. Blamed C. To blame D. To be blamed
【分析】答案选B。现在分词短语blamed for the breakdown of the work 可转换成原因状语从句because she was blamed f