Americans consider marriage a private arrangement between the two people involved. Young Americans feel free to choose their own marriage partners from any social, economic, or religious background. The man or woman may have strong ties with parents, brothers, or sisters, but when he or she falls in love, the strongest feelings are supposed to be for the loved one. When an American couple marries, they generally plan to live apart from parents and build their own independent family structure. 参考答案：
16) audience 17) teenage 18) celebrate 19) Popular 20) conquers 21) columns 22) is central to 23) a private arrangement 24) to choose 25) apart from
Unit4
短对话5题
Directions： Listen to five short conversations and choose the best answer to each question you hear.
1)
A. His house was broken into.B. His bicycle was broken.C. He failed the exams.D. He's worried about the coming exams. 参考答案： 1) D
听力文本：
W: Hey, Joel, why are you so depressed?
M: My house is leaking, my bicycle is lost, and the exams are coming. I'm really worried that I'll fail them all.
Q: Which of the following is one of the causes of the man's depression?
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2)
A. Forest fire is very bad this year.B. Forest fires will be worse next year.C. Forest fire will be brought under control next year.D. Forest fire has been brought under control. 参考答案： 2) B
听力文本：
W: This is really a bad year for forest fires.
M: As they say, you've seen nothing yet. Next year will be worse. Forests are dryer.
Q: What does the man mean?
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3)
A. The earthquake was not as strong as the Tokyo one.B. The earthquake was stronger than the Tokyo one.C. The two of them were lucky enough to live in an earthquake-proof hotel.D. The earthquake has leveled the house to the ground. 参考答案： 3) A
听力文本：
W: Oh my Gosh! The ground's shaking. Everything's moving. Look at the lamp swinging back and forth. It's an earthquake! Daddy, what can we do?
M: There, there, Dearie. It's over. Just a tremor. Nothing like the Tokyo earthquake I saw. Luckily I was in an earthquake-proof hotel then.
Q: What does the man think about the earthquake that has just occurred?
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4)
A. The crops were all failed in this area because of the drought.B. The area was hit by the worst drought in the last 30 years.C. The government should improve the development of the infrastructure in the area.D. The irrigation system in this area played an important role in coping with the drought. 参考答案： 4) C
听力文本：
W: It's a great relief to have rain after a long time of drought. The crops almost failed because of the dry spell.
M: Yeah. We'd never been hit by a drought so severe in the past 40 years. I think it's high time our government intensified the development of irrigation and water conservancy projects.
Q: Which of the following is true according to the dialog?
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5)
A. The man thinks human beings can change nature.B. The woman thinks human beings can change nature.C. The man thinks human beings can do nothing in the face of natural disasters.D. The woman thinks human beings can do nothing but minimizing losses in the face of natural disasters. 参考答案： 5) D
听力文本：
M: Jane, I've been thinking about whether we human beings can prevent natural disasters from occurring recently. But I've no answer.
W: Well, Peter, in my opinion, what we can do is only to reduce our losses in the face of natural disasters at most. Q: What is true of the two speakers?
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长对话5题
Directions： Listen to a long conversation and choose the best answer to each question you hear.
6)
A. Because of unfair treatment of Dolly.B. Because of the beginning of human cloning.C. Because of the death of a sheep clone.D. Because of the man's loss of interest in her. 7)
A. She produced no offspring before dying at the age of 11.B. She produced six little ones before dying at the age of 11.C. She produced three little ones before dying at the age of 6.D. She produced six little ones before dying at the age of 6. 8)
A. Short legs.B. Big eyes.C. A high nose.D. Curly fair wool. 9)
A. He helped British scientists in cloning Dolly.B. He helped American scientists in cloning fish.C. He cloned a fish more than three decades earlier.D. He cloned a cat more than three decades earlier. 10)
A. It was published in an international journal.B. It was published in a Chinese journal.C. It was translated into English.D. It was widely read. 参考答案：
6) C 7) D 8) A 9) C 10) B 听力文本：
Philip: Hey, Susan, look at me. Something's bothering you, I can tell. What's the trouble? Why so sad?
Susan: I'm sad all right. You will be too. I just found out Dolly died. And she was only six.
Philip: That's too bad. Six certainly is young to die. What did she die of?
Susan: Cancer. And a sort of stiffening in her joints called arthritis. But she was still able to produce six little ones.
Philip: Six children by age six! No one could do that. You must be joking.
Susan: Ever see her photo? You just want to give her a hug. Big eyes; high nose; curly fair wool.
Philip: Ah, now I've got the picture. You're not talking about a person at all. You mean Dolly the cloned sheep.
Susan: Of course I'm talking about Dolly, the first cloning, in 1996.
Philip: Strictly speaking, that wasn't the first cloning. A Chinese scientist cloned a fish thirty three years before.
Susan: Really? I've never heard about that. Why did he keep it a secret? Why don't we know more about him?
Philip: His name is Tong Dizhou. He described the cloning in a Chinese scientific journal.
Susan: I can guess what happened. The article was never translated into English and was not printed in an international journal and widely read. Right? Philip: You guessed it. Had the scientific community known, he'd be famous. Susan: Now that's something that really is sad. When you think that he made a great discovery, but didn't get credit for it, you feel sorry for him.
Q 6: Why was the woman sad?
Q 7: What does the dialog say about Dolly's offspring and death?
Q 8: Which of the following is NOT mentioned as a feature of Dolly's appearance?
Q 9: What did the Chinese scientist Tong do?
Q 10: What happened to the Chinese scientist's research?
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短文理解5题
Directions： Listen to a short passage and choose the best answer to each question you hear.
11)
A. A school for handicapped people.B. Physical or mental handicaps.C. The southern part of New Jersey.D. Ordinary schools for people. 12)