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九年级U4T1教案

发布时间:2013-11-26 12:38:47  

九年级英语上册《Unit4Topic2》教学设计

Topic 2 When was it invented?

主备人:李民学

Section A

Ⅰ. Teaching aims and demands

1. Learn some new words:

metal, toothbrush, ink, recorder

2. Learn some useful sentences:

—What’s it made of/from?

—It’s made of/from…

—What’s it used for?

—It’s used for …

3. Learn the simple past passive voice:

(1)—When was it developed?

—Around 1998.

(2)—Where was it developed?

—It was developed in Korea.

4. Learn how to express hopes and wishes:

(1) I wish I could go into space some day.

(2) I hope your dream will come true.

5. Talk about new technologies and inventions.

Step 1 Review

T: Boys and girls, we’ve learned about the importance of computers. Can you tell me something about them in passive voice?

S1: Computers are used by doctors to find diseases easily.

S2: Robots are controlled by computers to do dangerous work. S3: In business, computers are used to place and cancel orders. S4: Spaceships are mainly controlled by computers.

T: Well done! But do you know how the spaceships are sent up from the ground into space?

S4

rocket

T: Look! This is a model rocket. What’s it made of? What’s it used for? Let’s come to 1a and talk about it.

Step 2 Presentation

S1: T: Yes, it’metal

What’s it made of?

It’s made of metal.

T: Ss: T: Yes, it’satellite

What is a rocket used for?

It’s used for sending satellites or spaceships into space.

T: How do you say this in English, S2?

S2: Sorry, I don’t know.

S2T: What’s it made of, S2?

S2: It’s made of plastic.

T: Very good! You’re right.

What’s this in English, S3?

S3: Sorry, I don

’t know.

S3: It’s used for writing.

T: How do you say this in English, S4?

S4: It’s a piece of paper.

T: Can you tell me what it is made from?

S4: Sorry, I can’t.

Step 3 Consolidation

1. T: Open the books, listen to the tape and read after it. Pay attention to the pronunciation and intonation.

the sentence patterns, “be made of”, “be made from” and “be used for”. Make similar conversations in pairs.

Step 4 Practice

1.T:Boys and girls, what’s this in English?

Ss: We don’t know.

T: It’recorder

T: What’s it used for?

Ss: It’s used for helping us to improve our English.

T: Yes, what is this?

Ss: It’s an MP3 player.

T: ’s more useful than a recorder.

was/were+及物动词的过去分词

It was developed in Korea.

The bridge was built in 1990.

The cup was used in old days.

T: S1, answer the questions, please!

S1: The MP3 player was developed around 1998. It’s used for helping us to improve our English. It’s more useful than a recorder.

3. T: Read 2a, and underline the key words.

an MP3 player, be used for,

help us to improve our English, develop,

around 1998, Korea, more useful, recorder, buy

4.T: Who would like to retell 2a? S2, please!

S2: Kangkang is listening to MP3. It’s very nice. It’s used for helping us to improve our English. It was developed in Korea around 1998. It’s more useful than a recorder.

T: Very good!

5. Example:

T: How do you say it in English?

Ss:

digital

T: When was it developed?

Ss: It was developed in 1975.

T: Where was it developed?

Ss: It was developed in America.

T: What’s it used for?

Ss: It’s used for taking photos.

T: Do you understand? Practice the dialogs with your partner. Let’s begin.

Step 5 Project

2. Homework:

T: Please write down a short passage about your favorite invention in your

____________________________________________________ ____________________________________________________

Section B

1. Learn some new words:

clone, experiment

2. Go on learning the simple past passive voice:

(1) Do you know when it was invented?

(2) It was invented in 1879. 3. Learn some information about the clone technology.

(1) Cloning is famous throughout the world.

(2) There is DNA in most living things, including human beings.

(3) No doubt cloning can help save those animals in danger.

(4) And it can also benefit human beings.

Step 1 Review

T: Boys and girls. Let’s play a game. Ask questions one by one. S1: What’s your favorite invention?

S2: The MP3. What’s it made of?

S3: It’s made of steel and plastic. When was it developed?

S4: It was developed around 1998. What’s it used for?

S5: It’s used for helping us to improve our English.

T: You did very well. There are many important technologies and inventions in the world today. Look at this invention. It’s you know about it?

bulb

Ss: Yes, a little.

T: OK, who invented it?

Ss: Thomas Edison.

T: When was the light bulb invented? Do you know?

Ss:

T: No. OK, let’s come to 1a and learn about it.

Step 2 Presentation

T: In this lesson, we will learn something about other inventions and

invented it?

T: It was invented by Guglielmo Marconi. T: And when was it invented?

Ss: It was invented in 1895.

T: Very good. And look at this picture. Who invented it?

Ss: It was invented by Wilbur and Orville Wright.

T:

And when was it invented?

Ss: It was invented in 1903.

T: We have talked about so many inventions. Now we are going to learn something new about a great technology. Now look at this picture.

What animal is it?

Ss: It’s a sheep.

T: That’s very good. Cloning is a famous throughout the world. So far, scientists have cloned many animals to save those

animals in danger. The cloning technology has been used in human

experiment, organ, benefit

T: Then what’s the name of the first cloned sheep?

Ss: Dolly.

T: Yes, now let’s read 3a and answer the following questions.

(1) When and where was the cloned sheep created?

(2) What other things has man cloned?

(3) What’s used in cloning?

(4) What are the advantages and disadvantages of

cloning?

Dolly, be created, famous throughout the world, DNA, in every part of your body, be similar to, save, benefit human beings, explore more ways to, heart disease, Step 3 Consolidation

T: Please act out 1a in roles.

T: Just now, we’ve learned something about cloning. Can you say something about it?

S1: Dolly, a cloned sheep.

T: Yeah. It’s well-known.

S2: Cloning is known as a great experiment all over the world. T: Good!

S3:Dolly was created in Scotland more than ten years ago.

S4: So far, scientists have cloned rabbits, sheep, cows, mice, pigs and some other animals.

T: Excellent! Now, repeat what you have said just now one by one, and you will get the whole paragraph.

Step 4 Practice

T: Now, look at the pictures and try to say something about the inventions we have learned just now.

S1: The light bulb was invented by Thomas Edison in 1879.

S2: The radio was invented by Guglielmo Marconi in 1895.

S3: The airplane was invented by Wilbur and Orville Wright in 1903.

2. T: Boys and girls, do you want to know something about other

inventions? Let’s listen to the tape carefully and complete 2 on Page 87.

T: Who was the car invented by?

S4: Karl Benz.

T: When was it invented?

S4: In …

T: What about the telephone?

S5: It was invented by Alexander Graham Bell in …

T: What did John Baird invent?

S6: He invented the television.

T: When did he invent it?

S6: He invented it in …

T: Now, please talk about the inventions in your own words. Group 1,

please tell us something about the car.

G1: The car …

T: Now, Group 2, would you like to talk about the telephone or the television?

G2: We’d like to talk about …

T: Group 3. It’s your turn to talk about ...

3. T: Make up sentences according to the example and practice more. Example:

laptop

S4: Where were laptops invented?

S5: They were invented in Japan.

S4: When were they invented?

S5: They were invented in 1985.

Ss: ShenzhouⅦ was launched into space in China in 2008.

Step 5 Project

2. Homework:

According to your imagination, design your own invention. Then write an

____________________________________________________ ____________________________________________________

Section C

Ⅰ. Teaching aims and demands

1. Learn some new words and phrases:

servant, for certain, housework, make a contribution to

2. Learn some useful sentences:

(1) No one knows for certain, but most people think that robots will be part of our lives.

(2) In short, this robot is very useful to us.

3. Discuss the advantages and disadvantages of robots.

Step 1 Review

T: Now I’ll check up the homework of Section B and choose some students to report their results.

2. period. Look at the table and make dialogs 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! Who can work in pairs? You two, please!

S1: When was the radio invented?

S2: It was invented in 1895.

S1: Who was the radio invented by?

S2: It was invented by Guglielmo Marconi.

T: Well done. You learned a lot. Now, let’s talk about more inventions.

Step 2 Presentation

T: We have learned many inventions such as computers, digital cameras,

TV sets and light bulbs. Which invention do you like best? Can you tell me?

S1: Computers.

S2: Cars.

S3: …

T: Why do you like computers best, S1?

S1: Because I can learn a lot on the computers. Playing computer games is very exciting.

T: But you shouldn’t spend too much time on them. It is bad for your

study. Which invention would you like to own, S3?

S3: I’d like to own a cellphone. It can help me communicate easily. T: Very good. Anyone else?

S4: I’d like to own a car. It’s very convenient.

T: But I’d like to own a robot. Because I always feel very tired after

’me. It can clean the house for me. In cold winter, it can wash clothes for me. It’

s dangerous for me to clean the outside of the windows. OK, robot’s help, doctors can examine the insides of their patients’’ health.

contribution

make a contribution to

Ss: That’s very interesting.

T: Yes. Study hard, and I’

m sure you can make a contribution to our country.

T: Look! This is a robot. Will it be friendly or unfriendly to people? No 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.

2T: 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.

Step 3 Consolidation

T: Read the passage by yourselves and discuss the questions in 1c in

groups.

T: Group 1, which question did you talk about?

G1: Question 1.

T: Do you think that robots will be 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 we can control them. Robots can work for human beings, and they don’t complain. They can’t think for themselves.

T: Maybe you are right. Now it’s your turn, Group 3. Which question did

you choose to discuss?

G3: Question 2. 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 have 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. ) 2. T: After the discussion, you can try to retell the text in 1a according to the key words on the blackboard. I’ll ask some of you to retell it in the front. Be brave and have a try, please!

3. T: Please fill in the blanks according to 1a.

So far, robots haven’t us any problems. They work for us like all the time. They help us do and work. People are at the development of robots. In a few years, perhaps robots will think and for themselves. However, robots can think for themselves, problems may between human beings and robots.

T: Read 1a again. Check the answers.

Step 4 Practice

T: OK. Please find out and circle the words in 1a according to the

meanings in 1b. Then write

them down. You can work in pairs if necessary. Then we’ll check the answers together.

2.T: Let’s listen to the tape, and finish 2 by yourselves. We’ll listen to the

passage twice.

Step 5 Project

T: Boys and girls, work in groups of four. Design a robot. Then discuss the questions in 3 together. Write a short passage about it.

2. T: Now, I will ask some of you to make a report. After that, write it down in your exercise books.

3. Homework:

Think it over and make a similar card for your robot.

Name:________________________________

Inventor:______________________________

Year:_________________________________

Use:__________________________________

____________________________________________________ ____________________________________________________

Section D

Ⅰ. Teaching aims and demands

1. Learn a new phrase:

run away

2. Learn some useful sentences:

(1) This method worked well at night as long as the weather was good and the stars could be seen.

(2) To his surprise, when he was using the cellphone, he was caught by the police.

3. Review the simple past passive voice.

4. Talk about new technology GPS.

5. Delevop the students’ imagination and creativity by designing their own inventions.

Step 1 Review

T: How are you, boys and girls?

Ss: Fine, thank you. And you?

T: I’m very well. So far, we have learned something about the inventions in the world. Do you remember them all?

Ss: Yes, we have learned the light bulb, the car, the cellphone, TV set, the digital camera, the MP3 player …

T: Very clever. Please look at the picture. What’s this in English?

S1: It is an MP3.

T: What’s it used for?

S2: It’s used for listening to music.

T: What’s it made of?

S3: It’s made of plastic.

T: Where was it invented?

S4: It was invented in Korea.

T: When was it invented?

S5: It was invented around 1998.

T: OK, very good.

T: When was the cellphone invented?

S6: It was invented in 1973.

T: Where was it invented?

S7: It was invented in America.

Step 2 Presentation

T: Cellphones are widely used all over the world. It’s reported that over 93% of families in cities own cellphones, but cellphones could be lost easily. Have you watched the movie “A World without Thieves”? Ss: Yes.

T: In the movie, a lot of cellphones were stolen by “Liu Dehua”. We all

know that a very quickly and then hide in a secret place as soon as he or she steals a cellphone. In the past, he or she couldn’t be found. But nowadays, one of the new technologies can be used to find the lost cellphones easily. Is it amazing? OK, let’s read 1c and think about the question: Why could the lost cellphones

let’

s begin the new lesson.

and in any weather to find out our position. The early explorers used the were going. This method worked well at night as long as the weather

’t work so well during the rest of the time. ’

s listen Step 3 Consolidation

T: Please read 1a carefully and discuss the questions in 1b in groups of

four, then finish 1b.

2. T: Boys and girls, let’s begin our competition to retell 1a. Explored. Girls: That was a big question when we first explored our world long ago. T: Explorers.

Boys: The early explorers found that the stars in the sky were good

landmarks.

T: Find out.

Girls: Using the stars, they could find out where they were and in which

direction they were going.

T: As long as.

Boys: This method worked well at night as long as the weather was good

and the stars could be seen.

T: The rest of the time.

Girls: But it didn’t work so well during the rest of the time.

T: Problem.

Boys: But it didn’t work so well during the rest of the time. That was a

problem.

T: Like.

Girls: GPS is like a man-made star.

T: Use.

Boys: We can use it at any time, in any place and in any weather to find

out our position.

T: Shape.

Girls: GPS can also be used to study the shape of the earth.

T: Great invention..

Boys: GPS is a great invention that helps us explore our planet and

discover where we are.

T: OK, Well done! Boys and girls are all excellent.

3.T: Now, we have known GPS very well. I think you have found out the answer to the question. S1, could you tell me why the police could catch the thief easily?

S1: Because of GPS.

T: That’s right. When the thief was using the cellphone, the police could

use the information GPS offered to find out the position of the cellphone. So we can say it was GPS that helped the police catch the thief. S2, what do you think GPS will be used for in the future?

S2: It can be used to study the shape of the earth.

T: What do you think of it, S3?

S3: We can use it at any time, in any place and in any weather to find out

our position.

T: OK, in short, it is very useful to us.

Step 4 Practice

(2) I was allowed to play computer games yesterday.

(3) The digital camera was invented in 1975.

(4) Guglielmo Marconi invented the radio in 1895.

(5) ShenzhouⅥ was launched by China in 2005.

(1) A lot of information about spaceships was learned from Mr. Lee by me.

(2) They allowed me to play computer games yesterday.

(3) People invented the digital camera in 1975.

(4) The radio was invented in 1895 by Guglielmo Marconi.

(5) China launched ShenzhouⅥ in 2005.

3. T: Boys and girls, let’s play a game. I will give you some

important sentences of this topic on the blackboard. You play the game in

pairs. One says the front part of a sentence, the other says the whole sentence as quickly as possible. Then exchange the roles. Just like this: A: I wish…

B: I wish I could go into space some day.

Are you clear?

Ss: Yes.

Step 5 Project

1. T: Look at Kangkang’s invention and the information. What’s the name of his invention?

Ss: Plar.

T: When was it invented?

Ss: It was invented in 2010.

T: What’s it used for?

Ss: It’s used for both flying and driving.

T: Good! Do you want to be an inventor?

Ss: Yes.

T: OK! Discuss in groups and design your own invention. You’d better draw a picture of it and write down the information about it. Are you ready?

Ss: Yes.

T: OK, start please.

2. Homework:

Search the Internet for more technologies and inventions. Share them with

____________________________________________________ ____________________________________________________

修改人:雷梦迪

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