Learning about Language课件配套优秀教案案例

教学设计：Grammar：The Present Perfect Passive Voice ------ 现在完成时的被动语态

-------- 张静

教学目标：Learn the grammar knowledge of the present perfect passive voice. 重点：The structure of the present perfect passive voice. 难点：How to use the present perfect passive voice correctly. 教具：Multimedia;

Learning-plan

教学过程：

Step 1复习回顾一般将来时被动语态

Eg：

Our school will build a swimming pool next year.

被动语态：A swimming pool will be build in our school next year.

被动否定式：

A swimming pool will not be build in our school next year.

被动一般疑问式：

Will a swimming pool be build in our school next year ?

对划线部分提问：

When will a swimming pool be build in our school?

Step 2课前准备---现在完成时的主动语态

1）We have taken a lot of measures to protect wildlife here in the past three years.

2) He has improved his Chinese a lot since he came to China.

3) People have not talked about the topic for a long time.

4) Has he sold out his books?

5) What have they already published?

归纳一:现在完成时的主动语态结构

肯定式: have/has done. 否定式：have/has not/never done. 一般疑问式：Have/Has+主语+done？

特殊疑问式：疑问词+have/has+主语+done？

Step 3 现在完成时的被动语态的意义

1.表示过去开始的被动动作一直持续到现在，连用的时间状语有：for +一段时间，since +时间状语（从句），these days, so far, up to now, in the last / past few years等。

e.g

Up to now, half of the boos have been

read by the students. 2. 表示某被动动作对现在造成的影响或结果，常与already, yet, just, ever, never, recently等连用。

e.g. I have already been introduced to Mr. Smith. 归纳一：现在完成式的被动语态表示动作发生在

过去

，在说话之前

已经完成

，强调对现在造成的影响或产生的结果。

归纳二：现在完成时的被动语态结构

肯定式：主语+has/ have +not/never been done 否定式：主语+has/ have been +done. 一般疑问式：Have / Has +主语+ been done？

特殊疑问式：疑问词

+ have / has +主语+ been done？

Step 4被动语态的用法: (1) 不知道或没有必要说明动作的执行者是谁。

e.g: Some old computers were stolen

last night.

一些旧电脑在昨晚被盗了。

(不知道电脑是谁偷的)

This book was published in 1900.

这本书出版于1900年。

(2) 强调动作的承受者, 而不强调动作的执行者。

如: The window was broken by Jane.

窗户是Jane打破的。

This book was written by her.

这本书是她写的。

Step 5 练习：用动词正确形式填空

1. First as a PC and then as a laptop, I _______________(use) in offices and homes since the 1970s.

2. Over time my memory ______________ (develop) so much that, like an elephant, I never forget anything I __________________(told). 3. Since the 1970s many new applications __________________ (find) for me.

4. I have also ___________(put) into robots and used to make mobile phones

as well as _________(help) with medical operations.

5. I ____________________(put) into space rockets and sent to explore the

Moon and Mars.

Step 6 Homework: 1. Do the exercise 2 of the book on the P21 2. Feel the present perfect passive voice in the poem. (P21 练习3)