Using LanguageⅡPPT及课堂实录内容

Unit 2 cloning Using language Listening and speaking 一、

warming-up:

引入：让学生欣赏一些关于克隆的图片，了解克隆的发展史

Dolly the sheep

cloned cattle

cloned cats

cloned rabbits

cloned horses cloned dogs

cloned pigs

cloned monkey Andi What is cloning? Cloning is a way of making an exact copy

of another animal

or plant. It can be divided into natural clones and man-made clones. Q1:

What benefits can humans gain from cloning? Q2:

What problems do you think might arise from cloning?

二、听力理解

听力技巧

:

When doing blank-filling exercise in listening comprehension: 1）. Go through the questions before you listen.

2). Try to predict the missing words according to their part of speech（词性）

in the passage.

1.引导学生使用所学听力技能去预测在听力材料中将会听到的内容

text:

A clone will be 1

of the 2

. Clare doubts their

Clare

3

. Scientists

may 4

. And she suspects

the laboratory may keep 5______ and sell 6

as they grow. Wang Qiao

People would 7

if there is

8

between

9

and 10

. (keys: 1.an exact copy

2. original donor 3. relationship 4. get confused 5. the real baby 6. the clones 7. notice 8. an age gap 9. the donor 10. the clone

2. Rachel Brown and Xiao Qing are having a conversation

Task : ①用英文翻译Rachel Brown 提出的问题

②记下Xiao Qing 回答的关键信息

Rachel’s first question: Xiao Qing 你认为克隆残忍么？

Your translation:

Xiao Qing, do you think cloning’s cruel?

Xiao Qing’s reply:

What do you mean by that? The scientists are doing a wonderful job. Soon they may

be able to bring people’s favorite pets back to life!

Key words: a wonderful job; bring...back to life; favorite pets Rachel’s second question: 人们做了276次试验才把多利成功克隆出来，你不觉得残忍么？

Doesn’t it seem cruel to you that it took 276 experiments before Dolly was successfully cloned? Xiao Qing’s reply:

But Rachel, be reasonable. Isn’t it always like that with a new science? This is the way people learn to do things better. Key words: reasonable; a new science; do things better

三、

小组讨论Group discussion

Most of the controversy about cloning is concerned with human cloning. Please discuss the questions with your desk-mate.

Is human cloning a good idea? If yes, can you make some examples?

If not, why? Yes a.

to buy cloned babies if they cannot have babies of their own;

b.

help medical science to produce cures for serious illnesses;

c.

With cloning, scientists can do some experiments to help cure some deadly diseases

d.

…

No a.

illegal cloned babies will cause chaos

b.

Some people will take advantage of cloned organs to do some evil things

c.

Biodiversity is also a big problem d.

........

将学生分成三组:

Group 1(on the right): 学生对克隆人持支持态度

Group 2(on the left): 学生对克隆人持反对态度

Group 3(in the middle): 学生可选择支持或反对克隆人

When you present your ideas, try to use some phrases like:

a.

in my opinion; from my point of view;

b.

it is unwise for people to give androids right because … / it is necessary for androids to be given rights as …

四、角色扮演

看一个《逃出克隆岛》的小片段，男主角Lincoln开始发现所居住的地方其实不是所谓的世界最后一片未被污染的净土，而他其实是“神秘岛”居民的克隆人，他的存在是为了给居民们提供各种更换用的身体零件。男主角试图说服女主角Merrick一起逃离克隆岛

在你的对话中可能会用到的信息:

The problems they (the cloned humans) face; the situation they face t;

听力材料：

1.

IS HUMAN CLONING A GOOD IDEA?

Wang Qiao (WQ) is talking to Clare Peters (CP) about human cloning. WQ: What do you think about human cloning, Clare?

CP: I don’t know what to think. But I suppose it’ll come one of these 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 possibly 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 class discussion? What do you think? „

2.IS CLONING CRUEL?

Xiao Qing (XQ) and Rachel Brown (RB) are discussing whether cloning is cruel to animals or not.

RB: Xiao Qing, do you think cloning’s cruel?

XQ: What do you mean by that? The scientists are doing a wonderful job. Soon they may be able to bring people’s favourite pets back to life! RB: Yes, I know. But doesn’t it seem cruel to you that 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, Rachel, be reasonable. Isn’t it always like that with a new science? This is the way people learn to do things better.

RB: I suppose so — but they also make the animals do such unnatural things. One poor cow was made to give birth to a bison. What was the poor creature to think when it saw its baby?

XQ: I don’t quite understand why so many people are against cloning. I think the scientists need a bit of encouragement. Think of the benefits. Cloning may help medical science to produce cures for serious illnesses. RB: Yes, I know and I agree with that. It’s just that I don’t agree with the methods. XQ: Why not?

RB: 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 a new baby started life as an old lady! XQ: Really? I never thought of that.

RB: And it weakens the species. Cloning means that there’s less variety in the species. So the animals may not be able to resist a particular illness and they might die out. XQ: Oh dear! And that was just what you and I were trying to avoid. In spite of all these, don’t you think scientists would still be able to solve the problems?