Learning about Language优秀公开课教案

Unit3 Computers Learning about Language

The General 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 expressions 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 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：

A multimedia. Teaching Procedures：

Step 1 Revision T：Boys and girls，in last period we learned something about the history and development of computers.Now who would like to retell the text with the help of these figures? S1：Let me try.In 1642，a calculating machine was used in France.Then in 1922，the Analytical Machine was made by Charles Babbage.It could follow instructions from cards with holes.In 1936，Alan Turing，the real father of computers，wrote a book to describe how computers could be made to work and built a “universal machine”

to solve any mathematical problem.Later，people discovered the computer had “artificial intelligence”.In the 1960s，the computer got his new transistors.Its size was totally changes at that time.And in the early 1960s，the first family of computers were connected to each other.In 1970s，computers have brought into people’s homes.Now computers have been used by billions of people to deal with information and communicate with each other around the world by the Internet. T：Congratulations!You’ve done very well.Now try to do the same to your partners，OK! 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.Now，ten students will be asked to give the words.Who can?Volunteers! Check the answers together. 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. The possible answers：

explore

Web

technology

artificial

applications

intelligent

logically

reality

Task 3 T：Please finish Ex.3.Read the story and then use the outline to create one of your own. Page 20. Complete the exercise by yourself.Then some of you will be asked to read the sentences one by one. Step 3 Grammar—The Present Perfect

Passive Voice T：Boys and girls，now please pay attention to the following sentences in the text：

1.As the years have gone by，I have been made smaller and smaller. 2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet. 3.I have truly been built to serve the human race since my birth. T：Now let’s make sentences together.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 structure of the present perfect passive voice? Quite right.The structure of the present perfect passive voice is “subject＋have/has been done＋object”.The function of present perfect passive voice is indicating verbs’

the present perfect and the passive voice.OK，let’s practise the present perfect passive voice. Task 1 Conclusion of the rules Task 2 Change the following sentences into the present perfect passive voice. (Ex.2). T：Please turn to Page 21.Let’s finish Discovering useful structures. At first，look at Ex.2.According to examples，change the following sentences into the present perfect passive voice.Put the verbs into the correct form. Suggested answers：

1.A new personal computer has been bought. 2.Many problems have been found with our new computer. 3.A PC has been built the way we wanted. 4.Our computer has just joined to the Internet. 5.The computer has been used every day since we bought it. 6.A lot of e-mails have been written on the computer in the last year. Task 3 Multiple choice and Correct some sentences T：Now，Finish off some exercises and check the answers in class. Step 4 Consolidation 1.Fill in the blanks. 2. Enjoy a poem. Step 5 Homework T：OK，it’s almost time for a break.Try to remember the grammar rules . Now look at Ex.2 on Page 57.It’s your homework. Step 6 The Design of the Writing on the Blackboard Unit 3

Computers

The Present Perfect Passive Voice 1.As the years have gone by，I have been made smaller and smaller. 2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet. 3.I have truly been built to serve the human race since my birth. Structure：

“subject+have/has been done+object”

Step 6 Record after Teaching