A、They can use the light more effectively. B、They are stronger than the common materials. C、They can store and release heat. D、T

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问题  
M:(5)It’s so cold now, but this morning it was so hot and sunny. I wish there was a way I could always be wearing the most suitable clothes for the temperature.
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:(6)Oh, very funny! So we’ll be wearing gigantic clothes with built-in air conditioners and heaters.
W: I’m being serious!(7)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. Researchers 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:(8)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 cooler, the crystals become cooler and revert back to their original 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.
5. What is the weather like today according to the speakers?
6. What is the man’s initial reaction to what the woman describes?
7. What is unusual about the fibers treated with special plastic crystals?
8. How do the fibers work as the temperature changes?

选项 A、They can use the light more effectively.
B、They are stronger than the common materials.
C、They can store and release heat.
D、They can absorb water if necessary.

答案C

解析 本题问的是纤维经过特殊的塑料晶体加工后有什么特别的地方。对话中女士明确提到这种经过加工的纤维能够随着温度的变化储存和释放热量。
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