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新视野听说教程第三册听力原文(Unit 8)  

2014-12-05 19:02:42|  分类: 默认分类 |  标签: |举报 |字号 订阅

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Understanding Short Conversations

1. M: I was thinking that if there’s an advancement in cloning, I’d be able to clone my grandmother. She passed away recently and I really missed her.

W: I don’t think I like the sound of that. Once a person dies, we should not mess around with his or her DNA.

  Q: What is the woman the woman talking about?

 

2. W: I don’t get about cloning. I mean, why would anyone want to clone a human being?

  M: I think I’d want to do it for my children if they were to die. And I’m guessing that lots of other parents feel the same way.

Q: According to the man, how do many parents feel?

 

3. M: I imagine a world of perfect people. That’s what’s possible with cloning.

  W: You’ve got to be kidding!

  Q: What can be learned from the conversation?

 

4. M: I read a book about a man who was replaced by his clone. It was really frightening, and it made me think twice about cloning.

  W: Stories like the one you read are just science fiction. Such things wouldn’t cloning.

  Q: What does the woman think?

 

5. M: Legislators are going to meet with scientists before voting on cloning.

W: Well, I think there’s little need for that. Politicians should listen to the public instead of scientists in this matter.

  Q: According to the woman, what should affect decisions on cloning?

 

6. W: I heard Dolly, the cloned sheep, died an early death after picking up a disease.

  M: Yeah. She got sick because she was aging faster than normal. Scientists finally had to put her to sleep. It was sad really. Now, I don’t know what’ll happen with cloning.

  Q: Why did the scientists have to put Dolly to sleep?

 

7. M: Cloning might be a option for us when having a child. What do you think?

  W: Sorry. That doesn’t work for me at all. I wouldn’t want to handle the process. I’ve already talked to a doctor about this and it sounds like it would be too much trouble.

  Q: Why does the woman refuse to choose cloning?

 

8. W: I’d like to use cloning to make a perfect child—one who’s smart, athletic, and so on.

  M: Impossible! Intelligence and athleticism depend more on one’s upbringing than one’s genes. Cloning can’t make perfect people.

  Q:what does the man think?

 

9. M: What are you telling me? I’m a clone? What about my sisters? Are they clones too?

  W:No, just you. I’m sorry, but neither your dad nor I thought about how you’d feel then.

  Q: What is the relationship between the two speakers?

 

10. W: Glad to see you at home. Did you go to the clinic today and ask the doctor about cloning?

   M: Yeah. But we didn’t do much more than make an appointment to talk again in his office at the hospital.

   Q: Where does the conversation take place?

 

Understanding a Long Conversation

M: Have you finished the draft ordered?

W: You mean the document that will spell out our position on human cloning? Can you wait another day or two for it? I’m still having problems determining what pour position should be.

M: I’m afraid this can’t wait. We need to get our position out immediately to doctors and potential parents who need some sort of authoritative advice.

W: Maybe it’d help if we talked this out together.

M: Fine. What questions do you have?

W:I’d like to know what you feel about this issue personally. As the head of this committee, you should have the greatest say in our stance.

M: Fine. I feel that cloning is completely ethical and should be advanced as a top priority of medicine.

W: Why?

M: I’m extremely concerned about parents who are unable to have children naturally. Cloning would allow these parents to have children even they were infertile.

W: Anything else?

M: That’s it for now. Write this up quickly and have it on my desk before you leave for the day.

Q: 1. What are the speakers talking about?

2. What is the relationship between the two speakers?

3. Why must a position be decided upon right away?

4. How does the woman feel about the man?

5.How does the man feel about infertile couples?

 

Understanding a Passage

Dolly, the cloned sheep, was the biggest news story of 1996. Since then rodents, cattle, pigs, and other animals have, like Dolly, also been cloned from adult animals. Despite these successes, producing cloned animals is enormously difficult, with most attempts ending in failure. Cloning succeeds four percent of the time in species that have already been successfully cloned. In addition, some studies have indicated that cloned animals are less healthy than normally produced animals.

In 2001, researchers in Massachusetts announced that they were trying to clone humans in an attempt to extract stem cells. The National Academy of Sciences, while announcing support for such so-called therapies or research cloning in 2002. They said it was unsafe.

Ethicists, religious and political leaders, and others have called for a ban on human cloning for any purpose. They were especially worried when South Korean scientists announced in 2004 that they had cloned 30 human embryos. However, an investigation in 2005 determined that the data had been fabricated.

Q: 1. According to the passage, which of the following has NOT been cloned?

2. How do cloned animals compared with normally reproduced animals?

3. When did Massachusetts researchers say they were trying to clone people?

4. How do people of the National Academy of Sciences feel about cloning?

5. What was discovered about the announcement made by South Korean scientists?

 

Task 1

W: Hello, nice to meet you, Dr. Griffin. I’m Nancy Wang with the China Daily. Thank you for allowing me to come to here to your research laboratory. Can you tell our readers what you do here?

M: Well, this is where we conduct studies on cloning experiments. I’m glad you could come to see our facilities. And it’s very nice to meet you, Miss Wang. I’ve been to China twice.

W: Really? When?

M: I visited China first in 1995 and then in 2000. I believe everyone who has been to China must be impressed with how dramatically the country has changed.

W: Thank you, Dr. Griffin. I heard it was your institute that first cloned an adult mammal—Dolly the sheep. You institute did that in July 1996, right?

M: That’s right. Ever since it was born, Dolly has been the center of attention. Its appearance marked the beginning of an era.

W: It’s reported that Dolly gave birth to a lamb in April 1999. How are Dolly and the little lamb doing?

M: The lamb is called Bonnie. They’re both doing well. This proves that Dooly, a cloned animal., is able to breed normally and produced healthy offerings.

W: I wish you further success, Dr. Griffin.

M: Thank you, Miss Wang.

Q: 1. Where is the conversation taking place?

2.What can we infer from the conversation?

3. When was Bonnie born?

4. What was proven by Dr. Griffin’s experiments?

5. What is the conversation about?

 

Task 2

Human cloning is unsafe. The process that led to Dolly began with the transfer of the nucleus of an unfertilized egg by a process known as cell fusion. The “reconstructed” embryo was cultured and eventually implanted into female sheep and brought to term.

From more than 430 attempted fusions, 277 reconstructed embryos were made in this way; of these, only 29 survived to the stage that they could be implanted into female sheep, and only one survived to term. Just think of the huge waste of material and human suffering such a low success rate would imply.

And we believe that as we get older, our cellular DNA suffers changes, which account for why we are increasingly likely to develop cancer as we get older. A person cloned from an adult cell might have a higher risk of cancer because of premature aging, but we wouldn’t know that for years. Is our society prepared to take that risk?

So human cloning should continue to be considered unethical.

Q: 1.What is the speaker talking about?

2. How many reconstructed embryo were created through cell fusion in the Dolly experiment?

3. According to the speaker, why are we more likely to have cancer as we age?

4. According to the speaker, what kind of problem may clones suffer?

5. What can be inferred from the passage about human clones?

 

 

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