Learning about Language优秀公开课教案

Book 2 Unit 3 Computers 教学目标：

1. Understand how the passive voice is formed and when to use it.

2. Use the passive voice to talk about protecting the environment.

教学方法：

本节课主要通过两个方法来达到这一目的：

1. 以环境这一话题为主线来讲语法；

2. 以口诀的形式来总结语法规律。

教学过程：

Step 1. Lead in (2’) (1) Show students the picture and ask “ what do you think”.

这一步的目的是引入话题We should protect the earth 。引导学生说出被动态的句子：

Our earth should be protected.

(2)Ask students to tell active/ passive.

Step 2 Presentation and practice 1. (5’) (1) Discovery: Students will read a passage to find out the structure: has/have been done.

structures；has been built, have been repaired, have been planted, have been set up, have been torn down, have been built 。

(2)Show some pictures and ask the students to make sentences with the key words.

(3)Summarize

目的是通过一些环境被破坏的图片帮助和引导学生认识并运用现在完成时的被动语态。

Step 3 Presentation and practice 2 (5’) (1) Show students some other pictures and help them to make sentences with the structure: be being done.

(2) Ask the students to make situational dialogues.

(3) Summarize

目的是通过展示一系列积极的图片，

一方面使学生树立通过自己的行动改善环境的信心，另一方面通过描述这些图片练习现在进行时的被动语态。

Step 4 Presentation and practice 3 (3’) (1) Ask the students to make some rules with the help of the sentences, using the structure: will be done.

(2) Summarize

目的是通过小组活动，让学生制定一些保护环境的规则，同时熟悉并练习使用一般将来时的被动语态。

Step 5 Make a dialogue (10’) Make a dialogue in groups using the passive voice. Work in groups and talk about what is being done to protect the environment.

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Students can talk about the water, the air, the fields, the forests and so on. 目的是通过小组活动，让学生练习使用现在完成时被动语态，进行时被动语态和将来时被动语态这三种被动语态完成会话。

Step 6 Writing (10’)

Assign the task and divide groups.

Ask the students to work in group of four to finish a passage: Our environment.

Our environment During the past twenty years, our environment has been damaged. ____________________.

Luckily, at present this situation is being realized by more and more people. And many things are being done. ______________.

New rules will be made. __________________________.

I think in the near future our environment will be improved if we all try our best to protect the earth. 目的是通过小组活动让学生进一步通过环境这样一个主题练习使用之前呈现的几种时态的被动态。

Step 7 Summary

(5’) Summary 1: How to form the passive voice.

学生用

the door / paint / the worker 造句。

The door is painted by the worker.

The door was painted by the worker.

The door will be painted.

The door has been painted.

The door is being painted.

The door was being painted.

Summary 2: When to use the passive voice.

Step 8 Homework and Further practice

Review and practice the Passive Voice by using them in a certain situation.

We have an old musical instrument( 乐器）

. It is called a clavichord （古钢琴）

. ___________________________ （它是

1681 年德国产的）

. Our clavichord _____________________________ （放在起居室

living room ）

ever since it was bought by my father many ears ago. Recently it was damaged by a visitor. She tried to play jazz on it! She struck the keys too hard and two of the strings __________ （坏了）

. My father was shocked. It can ’ t be used now because ______________________ 它正在被修理）

. When it is sent back, ____________________________ （我们将不允许碰它）

.

通过填空巩固各种时态的被动语态的语法，

同时也可以看出，通过本节课的教学，同学们是否已经能比较自如的使用被动语态了。

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