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2015-2016学年高中英语 Module5 Listening and vocabulary课件 外研版选修6

Sheep A was created in a laboratory by scientists. It is a cloned sheep or clone. Sheep B is the “parent” of sheep A. Scientists used the genes of Sheep B to create Sheep A. Both sheep have identical genes their genes are exactly the sarae.

A gene—the part of a cell that controls how it develops

1.Who do we get our genes from?

2. How many parents does a cloned animal have?

3. Where are cloned animals created?

4. In what way are Sheep A and Sheep B identical?
They have identical genes, and so are identical in every way

Answer the questions about the words and phrases in the box. to be against (cloning) argument beneficial to be for (cloning) nature

1. If you are for something, do If you are against something, 4. 3. Do Do you you think often nature have arguments should be 5.2. Do you think cloning may be left with alone, people, or is in it it which better you to make disagree you think is a good idea? do you think a good idea? beneficial/helpful to humans? plants about something? and animals What the way kind we of Give at least one reason. want things them? do you argue about?

Say which of the arguments below are for cloning and which are against cloning.

1. Cloning is against nature.

2. Cloning will be beneficial to humans. For example, if a couple can’t have children, cloning could help give them a child.

3. Cloned animals get ill and die quite young.

4. People are afraid that scientists will create thousands of copies of the same person.

5. Cloning is dangerous because scientists may create monsters by mistake.

6. We could use cloning to cure illnesses.

Correct the wrong information in these sentences. 1. Dr Hugh Donaville works for a
company that has already cloned a number of people. animals 2. A sheep called Dolly was cloned in

1998. 1997
3. Dolly the sheep died in 2003.

4. Donaville The presenter thinks scientists

treated Dolly the sheep as a
product. 5. Donaville says that if a child

is very dies ill, scientists could clone it.

6. Donaville thinks it’s
a good idea to have terrible thousands of copies of the

same person.
7. Donaville says that we

could clone animals that
are becoming extinct have become extinct.

Presenter: Our topic for this week is cloning. To discuss it, we have with us Dr Hugh Donaville, head of a company that has already cloned a number of animals. Hugh D: Good morning. Presenter: Dr Donaville, could you begin with a simple explanation of cloning? Hugh D: Certainly. Cloned animals are created in a laboratory. They take all their genes from a single parent.

Presenter: So cloned animals come from one parent only. Hugh D: Precisely. Presenter: How successful has cloning been so far? Hugh D: Well, as most people know, in 1997 scientists cloned a sheep called Dolly. Since then, scientists have cloned animals such as pigs and cats. Presenter: You make cloning sound easy.

Hugh D: Do I? I wish it was. If it was easy,
I’d be a very rich man by now. Presenter: So what are the difficulties? Hugh D: Unfortunately, cloned animals get ill and die quite young. For example, Dolly the sheep died in 2003. She should have lived longer. Presenter: Why do they get ill?

Hugh D: We’ve got a few ideas but we don’t really understand why yet. Presenter: I see. Now obviously, Dr Donaville, you believe that cloning will be beneficial to human beings. Hugh D: Yes, I do. If I didn’t believe that, I’d be in a different job. Presenter: Many people believe that cloning is wrong and against nature. How do you answer them?

Hugh D: I tell them that cloning is a way of helping nature. Presenter: But cloning treats animals and people as things, as products. Hugh D: Nonsense! I don’t think that’s true at all. I don’t think scientists treated Dolly the sheep as a product. She was a sheep! Presenter: I’m not sure everyone believes that. Also, people are afraid that scientists will create thousands of copies of the same person.

Hugh D: I agree, if that happened, it would be terrible. We need laws to prevent that. Presenter: I’m glad you agree about that. But why do scientists want to clone humans? I can’t see any good reasons for this. Hugh D: On the contrary, there are very good reasons. For example, if a couple can’t have children, then cloning can give them a child. And if a child dies, we could clone it. Presenter: Create an identical copy, you mean? I think that’s a terrible idea.

Hugh D: A clone can never be an identical copy of another person. It’s not just your genes that create who you are. It’s your family and society as well. Presenter: True. Hugh D: To continue, we could clone animals that are becoming extinct. Presenter: Yes, if we were able to do that, it would be wonderful. I can see there are many arguments both for and against cloning.


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