Unit 3 Language in use国家获奖教案

初中英语祈使句教案

Teaching aims 1The students can understand the definition of imperative sentence, 2.The students can know the forms imperative sentences 3. The students can master the usage of imperative sentences 4. The students can understand the disjunctive sentences 5. The students can learn to answer imperative sentences Teaching key points and difficult points 1.The definite of imperative sentence 2.The two forms of imperative sentence 3.The usage of imperative sentence. Teaching strategies and aids

1.Interest Teaching Method 2.Cooperative Learning Method

3.PPTs and video Teaching procedures: Step 1.

Lead –in

Tell students the topic-imperative sentences Step 2. Presentation

1. Show studentds the contents:

2.Have them read some sentences and try to sum up the definition of imperative sentences

Go and wash your hands.

祈使句Be quite, please. （Please be quiet.）

是用来表示请求、Be kind to your sister.

Watch your steps.

命令、邀请、劝告No parking.

或警告等的句子

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3.Ask students to talk about the sentence forms and draw a conclusion of it

1以系动词be开头的祈使句，这种祈使句的常用结构：

be+形容词

/ 名词

•

Be a good student!

•

Be careful.

2以实义动词原形开头的祈使句，这种祈使句的常用结构为：

•

do+宾语（+其他）

•

Sit down, please！

•

Please open your books！

3 let型（Let+宾语+动词原形+其他）

•

Let me help you.

•

Let’s go to the park.

1

Don’t

be+形容词

/ 名词

Never

do+宾语（+其他）

Don't be late.

Never be late again.

2

let引起的祈使句有两种否定形式

•

Let+宾语+not+动词原形+其他

•

Let her not go.

•

b. Don’t+ let+宾语+动词原形+其他

2

•

Don’t

let her go.

3

在公共场合的提示语中，否定祈使句常用“No＋名词

/ V-ing形式”结构，表示“禁止做某事”。

•

No photos! 禁止拍照！

•

No parking!

4.Get them to talk about some tips for imperative sentences.

5.Guide them to think about the disjunctive questions of imperative sentences.

祈使句为肯定句式，其反意疑问句表示请求时，通常用will you

表示邀请、劝说时，用won’t you

祈使句为否定句式，其反意疑问句通常只用will you。

Let开头的祈使句构成反意疑问句时，除Let’s用shall we外，其它均用will you。

6.Make students understand how to answer imperative sentences

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Step3.

Practice

1.Have students do some exercise to practice it.

Step 4.

Summary 祈使句结构总结如下：(Write them on the Bd) 肯定：1. Do型

2. Be型

3. Let型

否定：1. Don’t/Never 型

2. Let型的否定式有两种:

①“Don‘t + let + 宾语

+ 动词原形

+ 其它成分”

②“Let + 宾语

+ not + 动词原形

+ 其它成分”。

Step 5.3．No 型

Homework

1.

Finish Exercise

2.祈使句用法口诀：

•

祈使句，无主语，只要动词就可以；

•

表示请求或命令，加上please表客气；

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•

如果变成否定句，Don’t开头是旋律；

•

NO talking ！是警示，祈使用法要牢记！

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