题目内容
What does the water purifier remove from the water？
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听力原文：W: Have you found anything wrong witi my stomach？
M: Not now. I'm still examining. I'll let you know the result next week.
What's the possible relationship between the two speakers？
听力原文：W: Wake up, Frank, time to rise.
M: Ha, oh, hi, Jane, I must have fallen asleep while I was reading.
W: You and everyone else. It looks more like a campground than a library.
M: Well, the dorm's too noisy to study in, and I find this place is quiet.
W: Have you had any luck finding a topic for your paper？
M: No. Professor White told us to write about anything in cultural anthropology. I wish she had not given us so much of a choice.
W: Well, why not write about the ancient civilizations of Mexico. You seem to be interested in that part of the world.
M: I am, but there is too much material to cover. I'll be writing forever, and White only wants five to seven pages.
W: So then limit it to one region of Mexico, Say the Uka town. You've been there and you said it's got lots of interesting relics.
M: That's not a bad idea. I brought many books and things back with me last summer, that would be great resource material, now if I can only remember where I put them.
What was Frank doing when Jane approached him？
听力原文：M: You will have to forgive me if I sound angry. But I am terribly upset.
W: Well, what seems to be the trouble？
M: This ear! You just sold it to me six months ago. And now it looks as though I'll have to get a new transmission.
W: That's a little unusual. I've never heard of that kind of problem before.
M: I had the car in here just a couple of weeks ago because the oil light on the dashboard stayed on all the time.
W: I think I remember that. We had that fixed up, didn't we？
M: Sure. The light stayed off after that. But that's when the other trouble started.
W: What other trouble？ You know that since you bought the car here, we'll do every thing we can to help.
M: That's what they said in the service department. Anyway, I heard this terrible rattling in the motor, and then the car just seemed to lose all its power. I couldn't even get up the hill in front of my own house.
W: Did you get in touch with us about that？
M: It happened on a Sunday. I had to have the car towed to my own service station. And when they looked at the motor, they said the transmission had been burned out. On a car that's only six months old, I never heard of anything like this—especially in a fancy, expensive car like this one.
W: Well, maybe that's covered by the warranty. Let's go into the manager's office and talk this matter over.
Where did the conversation probably take place？
听力原文：W: I just found the most useful device at that new outdoor store, a water purifier.
M: A water purifier？ You want to carry even more equipment with you on our hiking trips？
W: If it's lightweight and saves work, yes. And this one fits that description.
M: Really？ I bet it takes up a lot of room.
W: Not at all. It's a straw. Much like the one you use to drink a soda or milkshake.
M: Really？ That is small.
W: Ya. It's a plastic, and has a series of mineral and chemical filters that strain harmful microbes from water.
M: Yes. But how good a job can it do filtering the germs out of stagnant pond water or water from lake and streams？
W: It's fantastic. It makes the water entirely germ free.
M: But, what about salt or chemical pollutants that maybe in the water. Does it clean those out？
W: No, it doesn't remove salt and chemicals, but those are not really major concerns when we're out hiking and camping.
M: Mm. How long will a straw last？
W: For about 100 gallons, but don't worry about measuring that large amount of water. There is a built-in safety feature. The mineral and chemical filters become clogged long before the limit has reached and the straw stop drawing water.
M: I think I'll get one for my camping trip this weekend. It'll sure be carrying a lot of water or having to boil it at the camp site.
Where will the special straw probably be most useful？
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