Learning about Language课堂实录【2】

The Present Perfect Passive Voice

一. 教学目标

知识与技目标：

1.让学生弄清楚现在完成时被动语态的结构和用法；

2.重点是现在完成时被动语态的应用；

3.提高思维能力和运用英语的综合能力。

情感目标：

1. 创设轻松，自然的学习氛围，增强主动学习的意识；1 2. 建立英语学习的自信心。

二．教学的重点和难点

现在完成时的被动语态的基本结构与实际应用。

三．教学策略与方法

本节课教学以学生为中心，应用“合作式”和“探究式”的教学方法，教师引导学生自主进行信息加工，知识意义构建，归纳能力发展。

四．教学过程与方法

1 培养学生自主学习，协助学习和探究的能力；

2 培养学生分析问题，解决问题，归纳问题的能力

五．教学过程

Step1 revision(复习) 让学生在阅读中找出下列句子，并且进行大声朗读

1.The computers have been used in communication, finance and trade. 2.The computers have been put into robots. 3.It has been used to make mobile phones as well as help with medical operations. 4.They have even been put

into space rockets and sent to explore the Moon and Mars.

Step 2 discovery and summary(发现与总结) 让学生自我观察找出的句子，注意黑体部分，跟同桌讨论并总结其结构；have/has been done, 由此引出本节课的重点。

Step 3 讲练

现在完成时的被动语态

一.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 + done例如：

1. The movies have been downloaded already.

这些电影已经被下载了。

2. With the help of the student, the letter has been typed.

在这个学生帮助下，这封信已经被打好了。

3. The child has been taken care of by his Grandma all

these years.

这些年来, 这个小孩一直由他奶奶照料。

二. 现在完成时被动态否定式：

have not (haven’t) + been + 动词过去分词

has

not (hasn’t) + been

+ 动词过去分词

1. Many problems haven’t been dealt with. 2. The floor of our classroom has not been mopped yet . 主动语态变被动语态的方法（尝试让学生去总结）

(1) 把主动语态的宾语变为被动语态的主语。

(2) 把谓语变成被动结构(be＋过去分词) (3) 把主动语态中的主语放在介词by之后作宾语, 将主格改为宾格。例如：

•

He has finished his goal. 主语

宾语

•

His goal has been finished by him.

主语

宾语

More examples:（小组活动）

Tom has watched over the thief for a day. The thief has been watched over by Tom for a day. The police has sent out the signal for passing. The signal has been sent out by the police for passing. Many people have laughed at his appearance. His appearance has been laughed at by many people. 三. 双宾语动词变被动语态可将其中的一个宾语变为主语，

另一个保留不动。

•

主动：I have given him the key.

•

被动：He has been given the key. •

被动：The key has been given (to) him. My friend has sent me a new calculator. I have been sent a new calculator by my friend. A new calculator has been sent to me by my friend. 四. 带复合宾语的动词变被动语态时, 只能将宾语变为主语, 原来的宾补保留不动，

改称主语补足语。（明确宾语和宾补）

主动：I have asked her to help you. 被动：She has been asked to help you (by me).

He has advised me to buy a dictionary. I have been advised to buy a dictionary (by him). Step 4 Additional exercise Find out the mistakes in the sentences and correct them 1. A personal computer has bought by us. 2. Many problems have been found with our new computer. 3. A new bridge has been built in our hometown. 4. Our computer just has been joined to the internet. 5. The computer was used every day since we bought it. 6. A lot of e-mails have written on the computer in the past 5 years. Step 5 Homework (基于学生的学习基础与能力) Write five sentences by using this grammar structure. 1.

电脑已经被送去修理。

2.

机器人被广泛应用在日常生活和生产。

3.

所有的书本被搬到新的教室。

4.

我的旅游计划被耽搁。

5. 学校的图书馆被粉刷了。