Learning about Language说课稿【一等奖】

Book 9 Unit 2

sailing the ocean

Part four

Grammar

【学习目标】

To get Ss to have knowledge of this grammar point: present perfect passive voice. 【重点和难点】

To get Ss to have knowledge of this grammar point: present perfect passive voice. 【学法指导】

Cooperative learning 【学习过程】

（一）预习导学

Ⅰ. 在课文中找出与相关语法内容的句子找出来，注意划线部分的意思。

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Over time I have been changed quite a lot.

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First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s.

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Since the 1970s many new applications have been found for me.

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I have even been put into space rockets and sent to explore the Moon and Mars.

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I would really like to play against a human team, for I have been programmed to act just like them.

Ⅱ. 将上面句子进行结构分析，总结规律。

现在完成时的被动语态

(have/has +been + 过去分词)

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, 其构成是have / has + been + 动词现在分词

如：

1. The dirty clothes have been washed. 脏衣服都已经洗了。

2. The plan has been studied by the experts for three times. 这项计划已经由专家研究过三次了。

注意

1.副词的位置often, usually, always, never, hardly,seldom等副词置于have/has和been中间。

如: [误] Such a man has been hardly believed.

[正] Such a man has hardly been believed. 2. 并不是所有动词都有被动语态

1) happen, take place, break out, belong to, cost, last等不及物动词或词组无被动语态。如：

[误] Great changes have been taken place in China since 1978.

[正] Great changes have taken place in China since 1978. 2) open, break, drop等不强调动作发出者时常用主动语态。如：

[误] The door has been opened of itself.

[正] The door has opened of itself. 3. 短语动词不可分割或省略其中的介词或副词。如：

The SARS patients have been taken good care of. 4. 现在完成时不能与表示确定的过去时间的状语连用, 如: yesterday, two weeks ago, in 1978, when I got there 等, 现在完成时常与

already, always, often, ever, never, yet, not...yet, just等不表示明确的时间副词连用, 还可以和表示时间一直延续到目前的带since, for 的状语及包括现在在内的词连用。如: now, today, this month, this year, recently, these few days 等。不能用在现在完成进行时态的动词, 如: be, have, like, love, know, believe, hate等。

一般过去时则是表示过去某时发生的动作或情况, 与现在毫无关系。

Practice A: 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.

B: 用被动语态改写下列句子。

1. They have finished the construction of the new railway lines by now.

2. We have built a new library and a gymnasium in our school this year.

3. The car factory has produced a great many fine cars since the technological revolution.

4. They have made a plan to help the poor children in the poor area.

5. The government has spent a lot of money on the Hope Project.

C: 翻译下列句子

1. 一些新电脑在昨晚被盗了。

2. 这本书是他写的。

3. 任务尚未完成。

4. 他们已经被派往国外学英语了吗?

5. 这所学校已经建造了多少座大楼?

6.

有人告诉他这事很多次了。

【备注】

【学习后记】