题目内容
Part B
Directions: You will hear four dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE.
听力原文：W: Hi, Paul. All set for your speech club presentation this evening？
M: Yeah. I'm going to discuss robots.
W: Robots？ You mean those machines that walk and talk like in the movies？
M: No. Industrial robots like those used in the automobile and electronics industries.
W: Come to. think of it, I saw an article about that kind of robot the other day. Several pictures of robots welding ears, but they certainly didn't look the way I thought robots should look.
M: The robots we usually imagine are made up in science fiction. In industry, robots are designed to do a specific set of operations such as welding car frames. They are rarely built to resemble humans.
W: Actually all they need is a kind of brain to give signals, and a mechanism such as an arm to carry out instructions. Right？
M: Right. Tiny computers become the brains of these robots. The computers send signals in the form. of electrical impulses that move an arm in a claw. The claw is the hand that does particular kinds of work.
W: OK. But we've had machines on assembly lines doing work for people for years. That's what started the industrial revolution, remember？
M: But each of those machines can only perform. a single operation. And it takes months to modify them. The new industrial robots can each do a number of tasks and it's easy to reprogram them to perform. totally different operations. That's one reason they're becoming so popular.
W: They increase productivity too, don't they？ I read that even though they're still quite expensive, they often cost less per year than a worker doing the same job. I imagine robots will be used more and more.
M: Exactly. So now that you know all about the next industrial revolution, you don't have to come to speech club tonight.
What kind of robots is Paul going to discuss？
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Which of the following is NOT important for robots to perform. a task？
听力原文：M: Hi, Christi, I brought you some tea.
W: Thanks, Mark. Too bad it' s not apple tea, like in Turkey.
M: Yeah, too bad! You really liked living in Turkey, didn't you？
W: Yeah, it was great. Turkish people are so warm and generous.
M: How do you like the food in Turkey, Christi？
W: Oh, the food was fantastic ! But you know what I couldn't get used to？ How much people expected me to eat, I gained so much weight while I was living there!
M: Yes, it' s so polite to be generous. We think people aren' t polite if they don' t offer a lot of food.
W: I know. I also learned that it' s not polite for the guest to accept the offer of food at first.
M: Yes, that' s definitely tree! If you' re the guest, you must refuse the first two offers of food.
W: The first time I had dinner at a Turkish home, I felt rode refusing food. So I ate everything. And I kept on eating. . , and eating. Every time the host offered me something, I ate it.
M: Do you know how to stop the host from offering you food？ You must leave some food on your plate. That way the host knows that yon' re full.
W: Oh, is that the trick？ In the United States, we usually eat everything. You don' t want the host to think that you don' t like the food.
M: That is a difference. You know what happened to me the first time I had dinner at an American home？ When my hostess offered me a second helping of food, I said" no" the first time, to be polite. But she didn't offer again! I was still hungry when I left the house!
W: Americans think it' s not polite to insist. We don' t want to force you to eat more if you don' t want more. So if you say" no" the first time, we believe what you say and we don' t offer again.
M: I learned that lesson the hard way. Now if someone asks me if I want something, I say "yes" the frost time -- even though I feel rude.
W: Would you like something to eat？
M: No, no, I am not hungry.
W: Ha, ha.
Where are each of the two speakers from possibly？
听力原文：M: Excuse me. Are you waiting to buy tickets？
W: Yes, I am. So are all these people in front of me.
M: Have you been here long？
W: About 45 minutes. I' ve moved forward a total of about 3 feet in that time.
M: You' re kidding.
W: Not at all. There was a couple up ahead of me who got so disgusted they finally gave up and left. They said they' d been waiting for more than an hour.
M: Terrific. Does anyone know what's causing the delay？
W: If so, no one has let us know. It could be that there aren' t enough people selling tickets this afternoon. Or maybe their computer is down. I' m sure the concert hasn' t been cancelled.
M: I just hope they don' t run ont of tickets before I get up there.
W: That really would be annoying, wouldn' t it？
M: I guess I should have come before lunch. Or has it been like this all day？
W: Apparently it has. In fact, before I came I tried calling to charge my tickets over the phone, just to avoid this long wait. But they' re not taking phone orders, or checks, or credit cards. It' s cash or nothing, and you have to come in person.
M: Well, there' re two more hours before the ticket office closes. Tickets for a good concert are worth waiting for. So I think I' ll just make myself comfortable.
What are the man and the woman doing？
What is NOT the advantage of the new robots？
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