Using LanguageⅡppt配套的板书设计及意图

Ｂ８U2.

Using Language ＩＩ

Listening &

Speaking Teaching Aims: 1. Knowledge aims

1.Ｔo master the new words and expressions in the using language 2 of Ｂ８u２; 2. To understand the text. 2. Ability aim:

To develop the students’ listening and speaking skills.

3. Emotional aim: To develop students’ confidence in speaking English aloud.

Teaching Important Points 1.

Enable the students to improve their listening comprehension ability and speaking ability.

2.

Master the important words and expressions through practicing listening and speaking.

Teaching Difficult Point:

To improve the students’ listening and speaking ability and skills.

Teaching Methods 1.Questions and answers

2.Task-based method

Teaching Aids:

1. A blackboard

2. A projector and a computer for multimedia

Teaching procedures

Step I

Lead in

Is cloning cruel? Listen and see whether you agree with Xiao Qing or Mary.

1. Read these statements before listening. Tick those that you hear.

①

Cloning will bring dead pets to life.

② There were 627 experiments before

Dolly was successfully clone

Step ＩＩListening Text

XQ: What do you mean by that? The scientists are doing a wonderful job and soon they may be able to bring back extinct animals or ever people’s favourite pets back to life.

MB: Yes, Qing, I know. But doesn’t that seem strange to you? Is it worth it? It took 276 experiments before

Dolly was successfully cloned. Think of all those live cells and eggs that died in order for Dolly to be born. I don’t approve of that!

XQ: But Mary, be reasonable. Isn’t it always like that with a new science? This is the way you learn to do things better. It’s just that this one deals with living things.

MB: I suppose so —

but they make the animals do unnatural things. One poor cow was made to give birth to a bison. What was the poor creature to think when is saw its baby?

XQ: I don’t quite understand why so many people are against cloning. I think the scientists need a little encouragement. They have done some amazing things and think of the benefits. Producing animals that are an exact copy of the original may help medical science produce medicines or even organs for serious illnesses.

MB: Yes, I’ve heard all that. I agree with it but I don’t agree with the methods. I don’t think cloning is good for animals.

XQ: Why not?

MB: Well, I think it’s a dead end. Dolly the sheep was “middle-aged” when she was born because her DNA came from a middle-aged “mother”. Cloning your grandmother would mean the new baby started life as an old lady!

XQ: Are you sure? I never thought of that!

MB: And it also weakens the species. Clones mean there is less variety in the species and so illnesses will become more common and the animals may die out.

XQ: Oh dear! And that was just what you and I were trying to avoid. I see I shall have to look at this whole cloning question again!

•

Listening text

IS HUMAN CLONING A GOOD IDEA?

Wang Qiao is talking to Clare Peters about human cloning.

days. I think there are many problems that nobody has thought of yet.

WQ: What do you mean by that?

CP: Well, a clone will be an exact copy of the original donor. Right?

WQ: Yes, so what?

CP: Well, what’s the relationship

between the clone and his original donor?

WQ: I suppose they must be like one person. The clone is the same as his original donor.

CP: Let’s suppose that you take a baby to a laboratory to be cloned. Does it matter if the

laboratory returns you the real baby and one clone or two clones?

WQ: Yes, it does. But how could this possible happen?

CP: Well, the scientists may get confused.

WQ: My goodness. Surely they would notice if there is an age-gap

between the donor and the clone?

CP: Maybe. What if the donor and the clone are very close in age? Let us suppose they are both babies.

WQ: OK.

CP: Let’s suppose that the laboratory wanted to use the real baby to make more clones. Perhaps

they know parents who would like to buy a cloned baby. Perhaps this family is unable to have children of their own. So the laboratory keeps the real baby and sells the clones as they grow.

WQ: But that’s a baby factory! That’s not moral at all!

CP: I know, and that’s why it’s important to get our ideas sorted out now. So we really have to think about the problems of human cloning.

WQ: Yes. Now I see your point. We should do something about this. How about a meeting? What do you think?… (fade out)

ＳＴＥＰ

ＩＩＩ

１

Listen to the tape again and answer the following questions.

1. Why does Billy agree with cloning?

He wants to make his mother happy by keeping her pet dog alive forever and he also wants to take the chance to America for holiday when the dog is being cloned there.

2. What’s Frank’s attitude towards cloning? Why?

Frank doesn’t agree with cloning because he thinks cloning is very expensive and it has many moral problems.

3. What do you think Billy’s mother considers about cloning?

Billy’s mother is in favour of cloning. She is saving money to go to America to have her pet dog cloned just before it dies.

4. What’s your own opinion about cloning?

Various answers are possible.

3. Listen again and sort out the arguments for and against cloning pets.

ＳＰＥＰＩＶ

Listening task

A DISCUSSION ABOUT CLONING

Billy and Frank are having a discussion about cloning pets.

BILLY: You know, Frank, I agree with cloning. My mum has a pet dog and she is devoted to her. I think if anything happened to this pet she would be so upset. So we want to keep my mother happy by keeping her pet alive forever!

FRANK: What’s this all about? A little dog! Surely you can make your mother happy again in another way! Does she know what people did before cloning was a possibility?

BILLY: Yes, and she knows the cloning procedure. She’s read about the experiments in America. They offer chances for pets to produce their own stem cells. These stem cells will produce new pets at a very reasonable price

FRANK: Reasonable price! Surely it will be very expensive.

BILLY: Well, my mother is saving money to go to America with the dog just before it dies. If she goes to the laboratory we’ll all spend a week in America. If we’re lucky, we’ll be able toreturn after a few months with a new dog.

FRANK: Now I understand. You just want a holiday trip to America, and getting a new dog is just an excuse.

BILLY: Yes and why not?

FRANK: You are encouraging your mother to love her dog, so she will want to clone it when it gets old. Then you will take advantage of that to have a good holiday. Don’t you think about the moral problems of cloning?

BILLY: No, I don’t. It’s fine by me if I can make my mother happy and enjoy myself as well. That’s moral too!

FRANK: You know what they say about small dogs in Western countries. People keep dogs instead of having a real baby. Is that the case with your mother?

BILLY: Certainly not! She has me after all. But I have to be away from her when I study abroad for my Master’s degree. She’ll need her small dog then!

FRANK: I see. Now I know why I don’t agree with cloning.

BILLY: Now you know why I do. ＳＴＥＰＶ

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