Learning about Language优秀教学实录

Book2 Unit3 GRAMMER 现在完成时的被动语态

一、

教学目标

1.

复习巩固学过的四种被动语态；

2.

掌握现在完成时态的被动语态的构成及用法；

3.

完成课本对应练习

二、

教学重点

现在完成时态的被动语态的构成及用法

三、

教学难点

现在完成时态的被动语态的用法二：表示从过去某一时刻开始一直持续到现在的动作或状态。这个动作或状态可能仍然在进行。

四、

教具准备：

多媒体平台的使用、PPT、白板、课本、

五、

教学过程

Step One

引入：复习各时态（tense)的被动语态(passive voice)：

1.一般现在时(simple present tense )的被动语态：

S(主语）+am/is /are + done (过去分词) 2.一般过去时(simple past tense) 的被动语态：

S + was/were + done (过去分词) 3.情态动词(Modal verb)的被动语态：

S+ can/may/must/should + be + done 4.一般将来时(future tense)的被动语态：

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S + will be + done Step Two 观察下列句子的动词：归纳现在完成时(present perfect tense) 的被动语态构成：

1. Over time I have been changed quite a lot. 2. First as a PC and then as a laptop. I have been used in offices and homes since the 1970s. 3. … I never forget anything I have been told! 4. Since the 1970s many new applications have been found for me. 5. I have also been put into robots and used to make mobile phones…

6. I have even been put into space rockets and sent to explore the Moon and Mars. Step Three:新授：现在完成时的被动语态：

1.

现在完成时的被动语态的构成：the present perfect passive voice S + have/has been +done(过去分词) 2.

用法：现在完成时的被动语态表达以下两个概念： 

动作发生在过去,但在说活之前已完成,对现在仍有影响

-Have you had lunch yet? -Yes，I have. I’ve just had it.

你吃午饭了吗？

我刚刚吃过。



表示从过去某一时刻开始一直持续到现在的动作或状态。这个动2

作或状态可能仍然在进行。

He has taught here since 1981 他自1981年就在这儿教书。 I haven’t seen her for four years. 我有四年没见到她了。

Step Four使用注意事项：

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. 一些特殊动词, 如borrow, finish, begin, buy, start, return, marry, open, join等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，则需改换动词或时态。

如：

My brother has had (不能用has bought) this bike for almost four years. 3

How long has this book been bought?

How long ago was this book bought?

Step Five 巩固练习Practice makes perfect! 一、高考链接：从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

1. In the last few years thousands of films _____ all over the world. (天津2011) A. have produced B. have been produced C. are producing D. are being produced 2. Experiments of this kind _____ in both the U.S. and Europe well before the Second World War. (北京2011) A. have conducted B. have been conducted C. had conducted D. had been conducted 3. Every year a flood of farmers arrive in Shenzhen for the money-making jobs they _____ before leaving their hometowns. (福建2010) A. promised

B. were promised C. have promised D. have been promised 4. His sister left home in 1998, and _____ since. (2009全国卷I) A. had not been heard of B. has not been heard of 4

C. had not heard of D. has not heard of 5. I like these English songs and they_____ many times on the radio. (安徽2008) A. taught B. have taught C. are taught D. have been taught 6. Though we don’t know what was discussed, yet we can feel the topic _____. (陕西2008) A. had changed B. will change C. was changed D. has been changed 7. I got caught in the rain and my suit ______. (北京2007) A. has ruined B. had ruined C. has been ruined D. had been ruined 二、用被动语态改写下列句子。

1. They have finished the construction of the new railway lines by now. The construction of the new railway lines has been finished by them by now. 2.We have built a new library and a gymnasium in our school this year. A new library and a gymnasium have been built in our school this year by us. 5

3. The car factory has produced a great many fine cars since the technological revolution. A great many fine cars have been produced by the car factory since the technological revolution. 4.

They have made a plan to help the poor children in the poor area. A plan has been made by them to help the poor children in the poor area. 5.

The government has spent a lot of money on the Hope Project. A lot of money has been spent on the Hope Project by the government. Step Six Homework 1.

熟记现在完成时的构成及用法；

2.

完成课本对应练习题。

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