Learning about Language课堂实录【2】

Unit 3 Computers

Learning about language

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 Points：

How to master the usages 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 Aids：

1.A blackboard 2.A multimedia. Teaching Procedures：

Step 1 Revision

Review what have been learnt about computers in last lesson. Step 2 Words and Expressions Task 1 T：Please turn to Page 20 and finish Discovering Useful Words and Expressions. At first，look at Ex.1 from the reading passage，find the words and expressions with the following meanings and then we will check the answers together. Suggested answers：

1.revolutioin

2. Network

3.simplify

4.caculate

5.mobile 6.solve

7.explore

8.totally

9.anyhow

10.finace Task 2. T：Well done. Now please look at Ex 2.and complete the passage with some of the words above.

Pay attention to the use and the forms of those words. Suggested answers：

explore

Web

technology

artificial

applications

intelligent

logically

reality

Task 3

T: Now let’s look at the following sentences, paying attention to the underlined part. EXAMPLE: Over time I have been changed a lot. Can you pick out more than two sentences in the present perfect passive voice from the reading passage? Suggested answers: 1. First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s. 2. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told.

3. Since the 1970s many applications have been found for me. 4. …

T: Now observe the following sentences using the present perfect passive voice. 1. A new personal computer has been bought by my friend.

2. My computer has been repaired by the shop very quickly. 3. My computer has just been attacked by an unknown virus. 4. The problem have not been solved by us yet. 5. The computers has been given away to a local school by the company. 6. A kind of intelligent robot has been developed by the scientists. Step 3 Grammar—The Present Perfect Passive Voice T：Boys and girls，we found a lot of sentences in the text and did some exercises just now, but do you know what verb tense is used in these sentences? And what verb voice is used in these sentences? Yes，the present perfect passive voice is used in these sentences. Can you tell us the definition and the structure of the present perfect passive voice? 1.Definition

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.

2.The structure of the present perfect passive voice

1. 现在完成时被动语态肯定句

主语+has/ have been +P.P.+...

(P.P.=动词的过去分词形式) Her motorbike has been stolen. All the offices have been linked by computer. 2. 现在完成时被动语态否定句

主语+has/ have +not+ been+ P.P.+... The task has not been finished yet. Many skilled workers have not been trained in the company. 3. 现在完成时被动语态一般疑问句

Has he(she, it,单数名词)+been+P.P.+...? Has a new computer been bought? Have they been sent abroad to study English? 4. 现在完成时被动语态特殊疑问句

疑问词+have (has)+主语+been+ P.P.+...? What has been bought by Tom? Who have been helped by the new computer? How many buildings have been built in this school? Where has the car been repaired? Step 4 Exercises 一.单项选择

1. I got caught in the rain and my suit _______.

A. has ruined

B. had ruined C. has been ruined

D. had been ruined

2. Professor James will give us a lecture on the Western culture, but when and where ___ yet.

A. hasn’t been decided

B. haven’t decided

C. isn’t being decided

D. aren’t decided

3. If Newton lived today, he would be surprised by what _____ in science and technology.

A. had discovered

B. had been discovered C. has discovered

D. has been discovered 4. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she _____

English for a year.

A. studies

B. studied C. is studying

D. has been studying 5. With the help of high technology, more and more new substances ____ in the past years. A. discovered

B. have discovered C. had been discovered

D. have been discovered 6. When you get the paper back, pay special attention to what _____.

A. have marked

B. have been marked

C. had marked

D. had been marked 7. Both my brother work at the power station that ___ in my hometown. A. has set up

B. has been set up C. was set up

D. is set up 8. ---_____ the sports meet will be put off.

A. I’ve been told

B. I’ve told

C. I’m told

D. I told 9. All the preparation for the task ____, and we’re ready to start.

A. completed

B. complete C. had been completed

D. have been done 10. ---- How long ____ at this job?

---- Since 1990.

A. were you employed

B. have you been employed C. had you been employed

D. will you be employed 二.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.

三.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.

Step 5 Homework

Try to remember the grammar rules and do exercises 2 and 3 on page 21.

Step 6The Design of the Writing on the Blackboard

Unit 3

Computers

Learning about language The Present Perfect Passive Voice Definition:……. Structure：“subject+have/has been done+object”

Exercises:……