TPO extra1 听力文本.doc

Conversation1Narrator Listen to a conversation between a student and an employee in the campus computer center.Computer center employee Hi, what can I help you with today?Student Hi, um, I wanted to—you see, the thing is, I dont know much about computers, so I was wondering if, uh, if theres a class or something... so I can learn how to use computers, like to write papers for my classes.Computer center employee Oh, I see... um, we dont really offer a course for beginners, since most students already have computing experience. But all the computers in our labs have a general tutorial installed on them. You could just go there and run it.Student And the tutorial explains everything? I mean, it might sound strange but Ive never used a computer.Computer center employee Well, all the computer labs on campus are staffed with student assistants, and Im sure that any one of them would be more than willing to get you started.Student Yeah? That sounds good. But is it expensive?Computer center employee No, in fact, it wont cost anything; its one of the services of the computer center.Student Thats great. How do they—I mean, how do I get in touch with the student assistants? Should I just go to a computer lab and ask whoevers there?Computer center employee Sure, you could do that, or I can let you have a list of names of the students who are assistants in the labs. You might know one of them.Student Actually, I think Id prefer someone I dont know, um, so I can ask dumb questions... Is there anyone youd recommend?Computer center employee All of our student assistants are really knowledgeable about computers. I mean, they have to be, in order to work in the computer labs... It doesnt mean that theyre necessarily good at teaching beginners... but you probably wont be a beginner for very long.Student Hope not.Computer center employee And I just thought of something else. The bookstore has a lot of books on computers-there might be one for people like you, I mean, people who dont have a lot of experience with computers. I actually bought one for my father so he could learn how to use e-mail, basic word processing, that sort of thing—and it worked pretty well for him.Student OK, Ill try that, too. And if the bookstore doesnt have it, they can just order it for me?Computer center employee Right. Now is there anything else I can help you with today?Student Uh, just the list of names and the times theyre working. Id like to get going on this as soon as possible.Computer center employee Right. Good luck.Lecture 1Narrator Listen to part of a lecture in an economics class.Professor When attempting to understand international trade, some things seem so obvious that they can hardly be controverted, and other points that are important are invisible unless youve thought about the subject carefully. Consider the following: if theres an increase in imports, lets say, um, lets say imports of furniture, and the domestic producers of furniture find this new competition very difficult and are cutting production and employment, then it seems obvious and easy to understand and many people conclude from this that increasing imports will cause generally greater unemployment at home. What is not so obvious is that how much we import and how much we export... those are interdependent and you cant understand the one without the other. But the exports that are generated are not easily discernable, so most people dont see them. They see only the imports of furniture rising and employment in domestic furniture production falling. So as a result, many people argue that we ought to protect jobs by limiting imports—either by tariffs, quotas, regulations, or whatever—without realizing that this also has the effect of reducing potential future exports to the rest of the world, things that we can produce very, very... cost effectively and therefore profitably. The fundamental proposition in international economics is that it makes sense to import those things that we... that can be produced more economically abroad than at home and export things to the rest of the world that we can produce more cost effectively than produced elsewhere in the world. Therefore, if we limit imports, we put ourselves in danger of not being able to export. The details of this relationship will take much longer to explain than I can fully go into now but the point of the matter is that gains—the benefits of gains—from international trade result from being able to get things cheaper by buying them abroad than you can make them at home. Now therere some things that we can make at home that are... that we can do more economically than they can do abroad. In the case of the United States, typically high-technology products, uh... are things that Americans have innovated in and started firms doing that sort of thing at which they do very well. Where。