Learning about Language教学设计及教案分析

Unit4 Grammar 过去分词作状语

王小青

一、学生分析

学生基础普遍较差，生物班将近十名同学即20%的同学测试成绩总分120分的卷面分常低于40分左右

，尖子生少。

二、教材分析

学生在前面教材已接触过去分词在句中充当定语、状语、补语、表语的内容。本节课单独把过去分词作状语进行教学。

三、教学目标

Help the students learn how to use the past participle as the adverbial.

四、教学策略

1．

教学方法：task-based activities 2．

辅助手段：a computer and a projector. 3．

准备材料：PowerPoint课件

五、教学过程

Step1.Leading-in 复习过去分词的形式及含义（被动与完成）

以大脑风暴的形式回忆过去分词的用法

Step2.look and discuss 显示例句，找出过去分词，然后让学生以小组讨论的形式分析每一例句中划线部分在句中所充当的语法功能，从而让学生对过去分词在句中所起的语法作用有一个基本的了解。

例：1. They are interested in the story.----predicative 2. I heard my name called.-----object complement 3. The polluted water and air are harmful to people’s health.-----attribute (在找过去分词中，有同学错误地把例2中的heard 当成过去分词，由此可见一些同学对过去式与过去分词的概念分不清。)

Step3.look and learn(由课文中两个例句引出过去分词作状语

例：1. An expert in phonetics, convinced that the quality of a person’s English decides his/her position in society.

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2. But, sir(proudly) once educated to speak properly, the girl could pass herself off in three months a a duchess at an ambassador’s garden party.

Explanation: The past participle as the adverbial is a very important grammar, and it can indicate time, condition, reason, and why. We can add when/while/if or other conjunctions before the past participle in order to make the meaning more clearly.

例：

1. If bitten by a snake, you should send for help and don’t walk.

2. The room, although supposed to be kept locked, was often left open. 再让同学们从省略的从句进入完整的从句，如此由简入繁，由浅入深，步步深入，让

学生明白几种不同的状语表达方式。并让学生明白从句与主句主语一致性的特点。

Step4. Practice

1. 用所给词的恰当形式填空，并与A-D的汉语翻译相匹配。

Impress; pour; speak

1.

Once_________, a word becomes a promise. 2.

Once _________, water cannot be taken back again. 3.

__________ by the beautiful scenery, I forgot to go back home in time. A.覆水难收

B 流连忘返

C 一言既出，驷马难追

2. 改写句子（训练并考查学生对几种不同形式的状语的灵活使用）

Given more time, we could do it better. Heated to a high temperature, water will change to vapour. Frightened by the noise in the night, the girl did not dare sleep in her room. Disturbed by the noise, we had to finish the meeting early. She walked out of the house, followed by her little daughter.

3．用所给词的恰当形式填空。（侧重现在分词与过去分词的区别使用）

如：1. __________ (see)

from the hill, the park looks very beautiful. 2.__________(look) out of the window, I found many children playing on the playground.

4．句子翻译。

如：由于被妈妈所说的话所感动，我忍不住哭了起来。

5．改错题。（综合考察，侧重体现主从句主语一致性、从句的省略方式等）

Step5.

Homework : Finish Part2 and 3 on P.33