Learning about Languageppt课件课堂实录

Unit2

Computers

learn about language教学设计

The Genaral Idea of This Period This period includes revision of the text,learning about language.From this period the students will learn how to use some of the key words and expression in the text and do some exercises for consolidation,and learn how to use the Present Perfect Passive Voice. Teaching Aims: 1.

Help the students to learn to use some useful words and expressions. 2.

Enable the students to learn how to use the Present Perfect Passive Voice. Teaching Important Point: The use of the Present Perfect Passive Voice. Teaching Difficult Point: How to master the usage of some important words and phrases and the Present Perfect Passive Voice. Teaching Methods: 1.

Task-based learning. 2.

Cooperative learning 3.

Explanation and practice Teaching Design: Step 1: Revision and lead-in 1.Check the homework first ,and then ask students to make some sentences , using the Present Perfect Passive Voice. 2. Lead-in 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. Step2: Discovering Ask the Ss to discover whether these sentences have something in common.Help them to learn the useful structure : the Present Perfect Passive Voice.

Step3: Discussion : learning the structure Give some explanations 1构成：

主动语态

被动语态

现在完成时

have/has 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 Step4: Practice and exercises 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 cellphone.

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-mails on the computer. We have decided to write a report about the positive and the negative effects of using computers. Step5: 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 …

Step6: Further Study:

高考链接

1. ---How long _____ at this job?

B

--- Since 1990.

A. were you employed

B. have you been employed

C. had you been employed

D. will you be employed

2. When and where to go for the on-salary holiday ___yet.

D A. are not decided

B. have not been decided

C. is not being decided

D. has not been decided Step 7: Homework 1.Finish Exercise 1 on P57.

2.Revise the Present Perfect Passive Voice.