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听力长对话原文1
Conversation One
W: Hi, Bill, how is it going?
M: Oh, hi, Jane. I’m OK. How about you?
W: You can probably tell just by looking atme. I’m really busy. Hey, what are you reading?
M: A pretty interesting article. My biologyprofessor assigned it, and I thought I just looked it over. But I got reallyinvolved in it. It’s about endangered species.
W: That sounds pretty interesting. I’mgetting frustrated with the two research papers I’m struggling with. And canyou believe they are both due on the same day?
M: That’s tough.
W: I’ll get through it. So what’s this youare reading?
M: Well, it’s basically about the choicesconservationists are faced with. You know, these days when funding is so hardto come by.
W: Wait a minute. Is the focus on biologyor economics?
M: Both. Conservationists don’t have enoughfunding to save every endangered species in the world, so they have to decidebased on what would be lost if a species became extinct.
W: Can you give me an example of what youmean?
M: Take for instance, two animals, thespotted owl and the tailed toad. The article says the toad is unique. It has norelatives. But there are a lot of varieties of owls.
W: So, if that toad became extinct, we’dlose an important link in the chain of evolution, right?
M: Exactly. But that isn’t so for the owl.So for conservationists, it might be a clear choice of which animal to save.
W: I see. I am glad I don’t have to makethat kind of decision. Aren’t you?
Questions 19 to 21 are based on theconversation you have just heard.
19. What are the speakers mainlydiscussing?
20. What problems do conservationists have?
21. What can be inferred about the tailedtoad?
听力长对话原文2
Conversation Two
M: Good evening, dear audience. I’m glad tocontinue the topic about music. It is common knowledge that music can have apowerful effect on our emotions. In fact, since 1930s, music therapists haverelied on music to soothe patients and help control pain. Now psychologists areconfirming that music can also help relieve depression and improveconcentration.
W: That’s nice. Do they have any concreteexamples?
M: For instance, in a recent study, 15surgeons were given some highly stressed math problems to solve. They weredivided into three groups: one worked in silence; and in another, the surgeonslistened to music of their choice on headphones; the third listened to classicmusic chosen by the researchers.
W: What’re the results?
M: The results of the study may surpriseyou. The doctors who got to choose their music experienced less stress andscored better than the others.
W: That is surprising. How to explain this?
M: One possible explanation is thatlistening to music you like stimulates the Alfa-wave in the brain, increasesthe heart rate and expands the breathing. That helps to reduce stress andsharpen concentration.
W: Is there any other research?
M: Yes. Other research suggests a secondrelation between the music and the brain: by examining the students’ bloodafter listening to a variety of classical music collections, the researchersfound that some students showed a large increase in a chemical substance, anatural pain reliever, in their blood, which can help soothe the patient.
W: Well, thank you so much for being withus today and having us know about another function of music.
Questions 22 to 25 are based on theconversation you have just heard.
22. What is the talk mainly about?
23. According to the speaker, how is themusic therapy currently used in medicine?
24. What did the study done with surgeonshow?
25.What effect did music have in the study of students exposed to classical music?
