Using LanguageⅠ公开课教案

课题

必修2 Unit 3 Computers

Using language: Listening & Speaking

知识目标: To practise listening comprehension. 课时

1 教学

目标

能力目标：To practise making decisions and reasoning 情感态度与价值观：get students to know the history and importance of computers

教学

准备

重点

难点

A projector and some normal teaching aids 教学重点：

1.Learn something about the history of the computer. 2.master the key words and expressions in this unit.

教学难点：

Improve students’ listening ability. 教师活动

Step1. revision 1.

check the homework exercises. 1). It has been reported that children will be offered free education．

It has been reported that free education will be offered to children．

2). It has been said that we will be offered the latest computer science course book．

It has been planned that the latest computer science course book will be offered to us．

3). I have been told by Peter that I will be lent his notebook computer for a week．

I have been told by Peter that his notebook computer will be lent to me for a week．

2. Question: What can computers be used as?

Step2. Lead-in As we know, science and

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教

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学生活动

Step1. revision 1. check the homework exercises.

2.Ss answer the question: What can computers be used as?

个人修改

Step2. Lead-in

程

s technology is developing very As we know, science and fast and computers have technology is developing very become smaller and smaller. fast and computers have They have been used in many become smaller and smaller. fields. So, the 21st

century is They have been used in many the century of information fields. So, the 21st

century is technology What does it the century of information mean? Does information technology What does it technology/ IT only mean mean? Does information things like computers? Of technology/ IT only mean cause not. Actually, it means things like computers? Of more than computers. cause not. Actually, it means Computers are just one kind of more than computers. IT. What else do you know is Computers are just one kind of part of IT? IT. What else do you know is (TV, radio, CD-ROM, DVD, part of IT? books……)

(TV, radio, CD-ROM, DVD, Step3. Listening (SB)

books……)

1.

Pre-listening: What are the Step3. Listening (SB)

changes brought by different forms of IT ?

What are the advantages and disadvantages of them ?

2. While-listening: Go through the chart and

make sure the students look at the chart before they listen to the tape. (This is to sharpen their attention and listen for the answers. This will also help them get the gist of the text.) Then Listen to the tape and finish filling in the chart. (If necessary, play the tape for several times.) Say: After listening to their talk, we know all kinds of IT have both disadvantages and advantages．Let’s check the answers together. DisadvantaYou cannoIt is very eYou cannoSometimesth listen and watch．

d information．

ten to English．

t information．

3. Post-listening:

1) (pair work): decide which type of IT is best for you to use right now. Make your choice and give your reasons by using the following expressions.

I think that….

In my opinion, ….

I believe that….

I agree because….

I disagree because….

I’ve decided that….

2) (group work): Discussion :

Computers are useful and have brought us lots of good things, but they also cause bad effects. What attitude should we have towards the computer? (Make good use of it but never get trapped by it.) Step4. Speaking 1. Pre-speaking Say: From what we have learn, we should admit that computers and the web have a great influence on the school education as well as people’s life. It has come into people’s everyday life and many families hold computers in their homes. Now there is a task for you. 2. While-speaking 1) Situation: You have been asked by your parents to help choose computers for your home. You and your friend have looked at several computers. Talk about the special things each computer can do. Make a decision about which kind of computer to buy and explain why. Information input: Show students some pictures of different computers (desktop computer & laptop computer & …) Language input: Useful expressions (Repeat it to strengthen students’

ability of use it.) Supporting an opinion

I think that … , because …

First, …

One reason is that …

I think it is better because…

(Pair work )Use the expressions to support your opinion or challenging other’s opinions.

2) Oral report: (individual work ) Do an oral report to your father and start your report like this: I looked at many different computers. The one I have chosen is the PEP personal computer. One of the main reasons is that it is suitable for homes. I found that…

3. Post-speaking

Conclusion—What useful expression do we use to make a decision and reason? (In this way, they can review and use the words and phrases again.)

Step5. Homework

Page 22. writing: Write a report about your choice and try to use the present perfect passive voice as well as the useful words and expressions that have been mentioned above. in your report.

Perhaps, but what if / about …? Have you thought about …? What makes you think that …? I don’t like it because….

课后

反思

让全班同学积极参与课堂中，开口说英语。