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高一英语必修三Unit 4 Astronomy Period 3 Grammar ---- The past participle as the adverbial and

The present participle as the adverbial

编制： __李海杰__ 学习目标：

1.

了解过去分词作状语。

2.

掌握过去分词作状语和现在分词作状语的意义与区别。

3.

熟悉一些分词状语从句在高考中的高频考点。

学习重点：

1.

掌握根据分词作状语的类型。

2.

能根据具体的语境意义区别使用现在分词还是过去分词作状语。

学习难点：

1.

如何区别使用现在分词还是过去分词作状语。

教学流程：

1.First ask the students to find out the examples of the past participle as the adverbial in the play:

Sample sentences: 1. An expert in phonetics, convinced that the quality of a person’s English decides his/her position in society. P28 2. But, sir, (proudly) once educated to speak properly, that girl could pass herself off in three months as a duchess at an ambassador’s garden party. P30 Explanation: T: The past participle as the adverbial is a very important grammar, and it can indicate time, condition, reason, and way. We can add when / while / if or other conjunctions before the past participle in order to make the meaning more clearly. For example: Show the following. If bitten by a snake, you should send for help and don’t walk.

The room, although supposed to be kept locked, was often left open. T: Now please look at the following examples. Can you rewrite these sentences? Show the following.

1. Given more time, we could do it better. 2. Heated to a high temperature, water will change to vapour. 3. Frightened by the noise in the night, the girl did not dare sleep in her room. 4. Disturbed by the noise, we had to finish the meeting early. 5. Seen from the hill, the park looks very beautiful. 6. She walked out of the house, followed by her little daughter. Sample answers: 1. When / If we were given more time, we could do it better. 2. When / If it is heated to a high temperature, water will change to vapour. 3. As she was frightened by the noise in the night, the girl did not dare sleep in her room. 4. As we were disturbed by the noise, we had to finish the meeting early. 5. When it is seen from the hill, the park looks very beautiful. 6. She walked out of the house, and her little daughter followed. Practice Ask the students to finish Parts 2 and 3 on page 33. Time permits, ask the students to finish Exercises 1 and 2 in USING STRUCTURES on page 73. And next step is how to differ the usage of The past participle as the adverbial and

The present participle as the adverbial. Look at the ppt, you can see the form of difference of them, try to understand the sample and priciple of how to use them properly. T: Can you find the sequence of each verd when you use the past participle S: Yes, …

T: Can you identify the relationship of the participle verb and its subject when you use the present participle. Practice …

Summary and homework T: What did we learn today? S: The past participle as the adverbial. T: Good. What should we pay attention to when using the past participle as the adverbial?

S: The agreement between the subjects in the main clause and the past participle phrases. T: Right. After class, please finish the exercises in USING WORDS AND EXPRESSIONS.