Learning about Language课时教学实录

Unit3

Computers Learning about language Teaching aims: 1.

To learn some useful words and expressions of this unit. 2.

To learn the present perfect passive voice. 3.

To master the structure. Teaching important points：

1.

How to remember and use these words correctly. 2.

How to use the present perfect passive voice correctly. Teaching difficult points: How to use the present perfect passive voice correctly. Teaching procedures: Step1. Fill the word or expressions for each of the following meanings from the text. 1.

revolution complete change in ways of thinking, working, etc. 2.

network connected computer system. 3.

simplify to make things easier. 4.

calculate to find the answer using numbers. 5.

mobile can be moved easily from place to place. 6.

solve to work out the answer to a problem. 7.

explore to travel around an area to find out about it.

Step2. Complete the passage with the words below.

artificial technology intelligent applications explore Web reality logically When my brother was in high school, he was very interested in computers and enjoyed writing programs of his own. He used to download information from the Internet and made good use of it. He liked to explore

the World Wide Web

and used the Internet to communicate with computer programmers all over the world. When he went to university he studied IT（information technology）and developed a special in artificial intelligence. After developing special applications of the computer, he hopes to design an intelligent

robot which can think logically and look like human being, but in reality he was a long way to go. Step3. Grammar (the Present Perfect Passive Voice ) Ask the students to find out some sentences in the present perfect passive voice in the reading passage and try to translate them into Chinese. 1. Over time I have been changed a lot. 2. First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s. 3. Over time my memory has developed so much that, like an elephant, 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 as well as help with medical operations. 6. I have even been put into space rockets and sent to explore the Moon and Mars. The structure of the present perfect passive voice is: 主+have / has ＋

been＋done 肯定：主语+has/ have been done 否定：主语+has/ have +not+ been done 一般疑问：Has he(she, it,单数名词)+been done+...? 特殊疑问：疑问词+have (has)+主语+been+ done+...? Step4. Pair work Ask the students to work in pairs and turn the following sentences into the Passive Voice. 1. We have planted some trees around the lake.

Some trees have been planted around the lake by us. 2. My father has locked the door.

The door has been locked by my father. 3. Someone has turned off the light.

The light has been turned off. 4. We will hold the Olympic Games in Beijing in the year 2008.

The Olympic Games will be held in Beijing in the year 2008.

5. They have rebuilt the bridge.

The bridge has been rebuilt. Step5. Group work Have the whole class work in six groups, discuss the question and then choose one from each group to share the answers. 1. 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 2. ---_____ the sports meet will be put off.

A. I’ve been told

B. I’ve told

C. I’m told

D. I told

3. All the preparation for the task ____, and we’re ready to start.

A. completed

B. complete

C. had been completed

D. have been done 4. That book _________into at least 20 foreign languages. A. has said to be translated

B. has been said to have translated C. is said that it had been translated

D. is said to have been translated 5. Great changes___ in my hometown and a lot of factories ___.

A. have been taken place; are being set up

B. have taken place; have been set up

C. are taken place; had been set up

D. took place; will set up

Step6.Discussion Let the class discuss the following sentences and correct the mistakes one by one. 1. A personal computer has bought by us.

A personal computer has been bought by us. 2. Many problems has been found with our new computer.

Many problems have been found with our new computer. 3. A PC has been builded the way we wanted.

A PC has been built the way we wanted. 4. Our computer just has been joined to the internet.

Our computer has just been joined to the internet. 5. The computer was used every day since we bought it.

The computer has been used every day since we bought it. 6. A lot of e-mails had written on the computer in the past 5 years.

A lot of e-mails have been written on the computer in the past 5 years. Step7. Translation Let the students translate the Chinese into English to complete the sentences. 1. You can see the house __________________ (未油漆) for years. 2. How many workers ____________(已派遣) to build the railway? 3. — Why does Mary look so unhappy?

— She __________________ (被嘲笑) by her classmates.

4. It is said that the house __________ (闯进了) by two thieves. Step8. Homework 1.

Read and recite the new words and phrases in Unit3. 2.

Finish the exercises on P.18-20(Learning schedule)