题目内容
【C15】
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Wetlands can be thought of as "biological supermarkets" because dead plant leaves and stems break down in the water.
W: I recently read that in ten years we'll be wearing clothes that change with the weather. So when it's cold, our clothes will warm up, and when it's hot, our clothes. will cool off.
M: Oh, very funny! So we'll be wearing gigantic clothes with built-in air conditioners and heaters.
W: I'm being serious! Researchers have discovered a method of treating fibers with plastic crystals capable of storing and releasing heat as the temperature fluctuates. These treated fibers absorb more heat than untreated fibers. Researches are still working with this, but soon this process will be widespread.
M: That's fascinating. I didn't know that fibers had the capability of storing heat. How does that work？
W: These fibers work with the heat by rearranging their structures. The treated fibers move back and forth between two solid shapes.
M: I don't understand. What kind of shapes do they change into？
W: When the weather gets warmer, the crystals take on cube shapes and absorb heat. When the weather gets cooler, the crystals become cooler and revert back to their original teragonal structure.
M: That's truly unbelievable. You said that it'll be a decade before this type of clothes will be available. What a shame! I don't think I can wait that long.
(20)
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： According to government statistics, men of all social classes in Britain visit pubs quite regularly, though the kind of pub they go to may be different and their reasons for going there vary, too. Nowadays they often take their wives or girlfriends, which used not to be the case.
The fact is that the typical English pub is changing, partly because of the licensing laws not being so strict as they were, but also because publicans (酒店老板 ) are trying to do away with the old Victorian image of the pub. Pubs now provide couples with an. atmosphere where they can both enjoy them selves. Pubs used not to open except at certain times. The result was that they were usually crowded with men who seemed to be drinking as much as possible in the time available. But that kind of pub is rapidly becoming a thing of the past.
Opening hours are still limited to eight hours a day, but the publican can now choose which hours suit him best. And these days you can even get a cup of coffee if you prefer it to beer. But in spite of this the Puritans would never dream of admitting that a pub could become a respectable place.
(27)
听力原文：W: Oh dear, what an awful weekend!
M: Couldn't be worse !
Q: What does the man mean？
(16)
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