高中英语人教版必修2unit3ComputersGrammar教案(系列一)

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Unit 3 Computers

Period 3 Grammar 教学设计

I. Teaching contents：The Present Perfect Passive Voice

II. Teaching aims：

1.Understand the uses of the Present Perfect Passive V oice

2. Use the Present Perfect Passive V oice correctly

III. Key points & Difficulties

Key points:

To get the students to know the Present Perfect Passive Voice and learn how to use the Present Perfect Passive Voice.

Teaching Difficulties

To enable the students to use the Present Perfect Passive V oice correctly

IV. Teaching methods

Discussing, summarizing and practicing.

V. Teaching procedure:

Step 1: Lead-in

Review the verb tenses and the Future Passive Voice they have learnt in last unit.

Step 2: Grammar explanation.

Teacher help the students deal with how to express the Present Perfect Passive V oice.

1.The structure of the present perfect passive voice is:

have / has ＋been＋~ed

现在完成时的被动语态表示动作发生在过去, 到现在已经完成或对现在仍有影响。

主动语态即主语为动作的执行者；被动语态即主语为动作的承受者。现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，但主语为动作的承受者，表示“……已经被……”。

1). 现在完成时被动语态的肯定式为：

have / has + been + done

2). 现在完成时被动语态的否定式为：

have / has + not + been + done

3). 现在完成时被动语态的一般疑问句需将have / has提到主语的前面

4). 现在完成时被动语态的特殊疑问句为：疑问词+ have / has + been + done 2. 现在完成时的被动语态表达以下两个概念：

1). 说话时已经完成的动作或出现的结果。

2). 主语是行为动作的承受者。

3.主动语态变被动语态的方法

4. Practice.

Step 3: Exercise for consolidation.

Students try to do the exercise 2 on page 21, then teacher give guidance and check. Step 4: Homework.

1. Try to remember the form of the Present Perfect Passive Voice.

2. Finish the exercise 3 on Page 21 and exercise 2 on page 57.

VI. Blackboard design.