仁爱9年级上 Unit4 Topic2 Section C教案

The main activity is 1a. 本课重点活动是1a。

Ⅰ. Teaching aims and demands 教学目标

1. Learn some new words and phrases:

servant, for certain, act, housework

2. Discuss the advantages and disadvantages of robots.

Ⅱ. Teaching aids 教具

单词卡片/写有单词释义的卡片/多媒体课件/一些机器人的图片(或教学挂图)/幻灯片

Ⅲ. Five-finger Teaching Plan 五指教学方案

 

 

Step 1  Review 第一步  复习(时间:13分钟)

1. (出示幻灯片，同学们根据幻灯片的图表，用过去时的被动语态句式做对话练习。)

Invention	Inventor	Year
Car	Karl Benz	1885
Radio	Gugliemo Marconi	1895
Light bulb	Thomas Edison	1879

T: Boys and girls, we have learned many inventions during the last period. Look at the table and make a dialog like this:

A: When was the car invented?

B: It was invented in 1885.

A: Who was the car invented by?

B: It was invented by Karl Benz.

T:      OK! I’ll ask two students to ask and answer about the radio.

S₁: When was the radio invented?

S₂: It was invented in 1895.

S₁: Who was the radio invented by?

S₂: It was invented by Gugliemo Marconi.

(再找两组同学做类似对话。)

2. (师生互动，导入新课。)

T: We have learned many inventions such as computers, digital camera, TV set, light bulb

and so on. Which invention do you like best? Can you tell me?

S₃: Computers.

S₄: Cars.

S₅: …

T: Why do you like computers best, S₁?

S₃: Because I can learn a lot on the computers. Playing computer games is very exciting.

T: Which invention would you like to own?

S₆: I’d like to own an English Learning Machine. It can help me learn English well.

T: Very good. Anyone else?

S₇: I’d like to own a car. It’s very convenient.

S₈: Which invention would you like to own, Mr. / Miss …?

T: I feel very tired after work and I don’t feel like doing any housework at that time. So

I’d like to own a robot. Do you know robots?

(教师释义并领读robot, housework。)

Ss: Yes. But why?

T: I’d like a robot to help me do a lot of housework. It can cook for me. It can clean the house

for me. In cold winter, it can wash clothes for me. Ha! It’s just like a servant. It’s dangerous for me to clean the outside of the windows. OK, let the robot do it.

 (学生跟读生词servant。)

Ss: That’s very interesting.

T: Yes, study hard, maybe you can invent something useful one day.

3. (多媒体展示机器人，教师介绍导出本课的重点句型。)

T: Look! This is a robot. I want it as my servant. Will it be friendly or unfriendly? No one

knows for certain. So far, robots haven’t caused any problems for humans.

(板书并解释)

knows for certain  Robots haven’t caused many problems for humans.

T: They work for us like servants all the time and help us do dangerous and difficult work.

(板书)

 They help us do dangerous and difficult work.

T: With the development of our technology, maybe robots will think and act for themselves. They will no longer want to be our servants, but our masters. Do you think it is very dangerous? Maybe there will be a war between robots and human beings.

Step 2  Presentation 第二步  呈现(时间:10分钟)

1. T: Boys and girls. We’ve learned something about robots. And today we’ll learn a passage

about robots. First listen to the tape carefully and find out the key words and expressions. I

repeat for you.

future, certain, friendly, cause, servants, help, development, perhaps, however, warn, no longer, if, lucky, treat, war

(播放录音， 随机重复这些关键词，让学生在文中画出这些词。)

2. (让学生阅读1a, 分小组讨论话题。)

T: Read the passage by yourselves and discuss the following questions in pairs.

(1)Do you think that robots will be a part of our lives in the future?

(2)Robots are our servants, aren’t they?

(3)Do you think robots can think or act for themselves?

(4)Do you know why the title needs a question mark?

(为集中学生注意力，节约有限的课堂时间，让小组有选择性地讨论其中的一个话题。

给学生五分钟时间阅读短文和准备讨论的话题。)

T: Group 1, what’s your topic?

G₁: Question 1.

T: Do you think that robots will be a part of our lives in the future?

G₁: Yes, we think so. They can help us do some dangerous and hard work. They work fast and

they are never tired.

T: Group 2. What did you talk about?

G₂: We talked about Question 3. We don’t think robots can think or act for themselves. Human beings created robots. So they can control them. Robots can work for human beings, and they don’t complain. They can’t think for themselves.

T: Maybe. Now it’s your turn, Group 3. What’s your opinion?

G₃: We don’t think robots are meant to be our servants. They are important. They can do a lot of work for us. But we mustn’t treat them as our servants. They should be our friends. We

 can talk with them.

T: Yes, I agree with you. And what do you think of the title. Group 4? Why does the title need a question mark?

G₄: Because the writer is not sure whether robots will be our servants in the future. (or the writer doesn’t think that robots will be our servants. )

3. (学生大声朗读1a，培养阅读能力。)

T: Read the passage aloud. Pay attention to the key words.

Step 3  Consolidation 第三步  巩固(时间:8分钟)

T: Read the words you underlined just now. Make sure what they mean. Now, Let’s have a

competition among the groups. Let’s make sentences with these words. Don’t look at your

books and make some sentences about robots. You can use the same sentences as the

passage if you remember.

(让学生用教师提示的关键词进行造句竞赛，为活跃课堂气氛，可以将班级分为三大组，并把竞赛结果记录在黑板上，最后必须进行总结和鼓励，充分调动全体学生的积极性。)

T: Future.

S: What will our future be like?

T: Certain.

S: No one knows for certain.

T: Friendly.

S: Will robots be friendly or unfriendly?

(完成一段后，再让刚才发言的同学在没有老师提示关键词的情况下，快速说出自己的

那个句子，将一段完整的短文复述完毕。教师总结这一小段的竞赛情况并板书。)

T: I think Group 1 and Group 2 are very active, Group 3, you need to work hard. I’m sure you’ll do better next.

Group 1            Group 2        Group 3

T: Please read 1a again and discuss the questions in 1c. And finish 1c.

Step 4  Practice 第四步  练习(时间:8分钟)

1. (出示自制单词卡片和写有单词释义的卡片，做找朋友的游戏。A组同学持有单词卡，B组同学持有单词释义的卡片，让A组同学说出自己的单词，B组同学拿出单词释义卡找朋友。完成1b。)

A组 warn cause   servant   certain

B组 To make something happen or appear. A person who works in another person’ s house and does housework for the family.    To tell somebody that something bad or dangerous may happen so that they can prevent it.  Sure and confident, without any doubts.

2. (播放2录音，让学生完成2。)

T: Let’s listen to the tape, finish 2 by yourself. We’ll listen to the passage twice.

(听完后，核对答案。)

答案：

1. more than

2. invention

3. health

4. examine

5. used

6. should

(为了使学生加深对所听内容的理解，提两个问题。)

T: What are x-rays used for?

Ss: They are used for examining patients’ bodies.

T: Why should it be used properly?

Ss: Because it has some bad effects on our health.

Step 5  Project 第五步  综合探究活动(时间:6分钟)

(根据3中的问题，让学生设计一个机器人。)

T: Design a robot as you like and think about these questions:

1. What does it look like?

2. What’s its name?

3. What can it do for us?

4. Can it think for itself?

5. What are its advantages and disadvantages?

(学生准备好以后，可以抽取其中三个准备较好的学生进行表演，要求他们谈论自己的

设计。)

T: Who would like to show your design?

(也可用相互提问的方式扩大练习范围，让全体学生都有机会参与探究活动，利用所学的语言和信息进行交流。)

板书设计：

When was it developed? Section C for certain make a contribution to Robots will think and act for themselves. It is used for discovering illness.