Learning about Language教案3

第3课时

教案Ⅰ

Learning about language ——Discovering useful structures

教学目标

一、知识与技能

1. Learn the Present Perfect Passive Voice.

2.

Help the students master the way of using the correct voice, telling the differences between the active voice and the passive voice.

二、过程与方法

从学生熟悉的现在完成时主动语态和被动语态的结构入手，引导出现在完成时的被动语态的构成，然后进行变被动语态的训练，以便学生能够熟练地掌握。

三、情感、态度与价值观

培养学生的逻辑表述能力，激发学生的积极思维和探究知识的乐趣。

教学重点、难点

教学重点

现在完成时被动语态的结构。

教学难点

现在完成时主动语态和被动语态的区别及使用场合。

教法与学法导航

教法导航

讨论现在完成时的主动形式和被动形式的变换规律，提高知识综合运用。

学法导航

在老师的指导下进行主动变被动的训练，以达到能够区分主动和被动的目的。

教学准备

教师准备

多媒体课件，学案等。

学生准备

复习旧知，预习本节课的内容，明确现在完成时态的结构，推理出现在完成时态的被动形式。

教学过程

Step 1 检查作业

1．Have a word dictation:

2．Have a word dictation of 15 new words and 5 phrases. Then ask some students to make some sentences with some important words and phrases.

Step 2 课前热身

Say: Are you familiar with these computers? Can you call them? (ask the Ss to distinguish different types of computers.) Do you know these new inventions of computer ?

A wrist-worn PC has been invented recently.

A pen-like computer has already been developed.

(show them some pictures and ask them to make some sentences , using the Present Perfect Passive Voice.) E.g: It’s rather a hot day today! Would you like to have a swim after school?

Have you ever swum in the Blue Water World（蓝色水世界）in the Oriental Suntown (东方太阳城) which has been set up in Taizhou? There a beautiful swimming pool has been built.

Many high buildings have been set up.

Lots of flowers and trees have been planted.

A new bridge has been completed….

Ask the Ss to discover whether these sentences have something in common.. Help them to learn the useful structure : the Present Perfect Passive Voice.

Step 3 学习现在完成时的被动语态

Give some explanations 1．构成：

主动语态

被动语态

现在完成时

have/has donehave/has been done He has been sent to study the new technology in the company.

The dirty clothes have not been washed.

Have the windows been cleaned? How many shopping centers have been built in this city? 2．只有及物动词才有被动语态，不及物动词（词组）没有被动语态, 如:happen, take place, die, appear, disappear, fail, remain, lie, last, sit ,stand, break out, come true, belong to等。如：

What has happened to your brother? 3．但许多不及物动词加介词或副词构成的短语动词，相当于及物动词，也可以有

被动语态。但短语动词是一个不可分割的整体，变为被动语态时，不可丢掉构成短语的介词或副词。如：

The child has been taken good care of by Grandma Wang all these years.

A notice has been put up on the wall Step 4课堂作业

1. Change the following sentences into the Present Perfect Passive Voice.

(1) We have completed all the preparations for the task, and we’re ready to start.

(2) This company has produced new types of computers.

(3) They have interviewed several teachers for the job.

(4) George has sent some texts and pictures to his friend’s cell phone.

(5) They have developed some programmes for the human resource department of their company.

2. Change the following sentences into the Present Perfect Passive Voice. Put the verbs into correct form.

Recently we have bought a new personal computer. We have used the computer every day since we bought it. We have just joined our computer to the Internet. However, we have found many problems with it. So we have decided to ask a professional man to fix it.

Soon he has fixed the computer. He has built a PC way we wanted. How excited we are! These days we have written a lot of e-mail on the computer. We have decided to write a report about the positive and the negative effects of using computers.

3. Do some exercises: choice Step 5 口语训练

Using the structure: Play a game—What has been decided.

1. Give the Ss the situation: Get into groups of four. Your task is to decide what has been decided for the class .Take turns to make the ideas as interesting or as lively as you can.

2. Give the Ss some examples: S1: It has been decided that those who do not do heir homework will be asked to return to school on Saturday.

S2:It has been decided that those who keep the classroom tidy should be allowed to go home early everyday.

S3: It has been decided …

S4:…

3. Ask them to collect the ones they all like best and be prepared to tell them to the class.

Step 6 作业布置

1.Finish Exercise 1 on P57.

2.Revise the Present Perfect Passive Voice.

板书展示

1.构成：

主动语态

被动语态

现在完成时

have/has done  have/has been done new technology in the company.

been washed.

Have the cleaned? How many shopping centers have been built in this city? 现在完成时的被动语态

2.

只有及物动词才有被动语态，不及物动词（词3．但许多不及物动词加介词或副词构成的短语动词，相当于及物动词，也可以有被动语但短语动词是一个不可分组）没有被动语态, 态。

appear, disappear, fail, 割的整体，变为被动语态时，不He has been sent to study the 如:happen, take place, die, The dirty clothes have not remain, lie, last, sit ,stand, 可丢掉构成短语的介词或副break out, come true, belong 词。如：

windows been to等．如：

What has happened to your brother?

The child has been taken good care of by Grandma Wang all these years.

A notice has been put up on the wall