题目内容
SECTION A CONVERSATIONS
Directions: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.
听力原文：M: Have you seen my glasses？ I can't find them anywhere.
W: Go into the bathroom and look in the mirror.
M: You mean I've got them on. How about that？
W: You're the most absent-minded person I've ever known.
M: I can't deny it. I'd lose my head if it weren't attached to my shoulders.
W: I'll never forget the time you went fishing and forgot to take your rod and reel.
M: I won't forget it either, but that's not the most memorable example of my forgetfulness.
W: How about the time you started to leave without having any pants on？
M: No, that's not it.
W: It couldn't be forgetting your wallet. You've done that a hundred times. I'm tired of guessing, tell me.
M: You never would have guessed. I don't believe I've ever told you about it though you were indirectly affected by the incident. I almost married my college sweetheart.
W: You're right. You've never told me about her.
M: Well, anyway, the day we were supposed to get married was such a beautiful day that I forgot all about the wedding and went fishing instead. The girl never forgave me.
W: I hardly blame her, though I'm glad things turned out differently.
Where were tile man's glasses？
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听力原文：W: Have you ever looked really closely at the snowflake？
M: Sure. But they usually melt too fast for me to get a close look. Why do you ask？
W: I'm just curious. I was reading an article about the formation of snowflakes and I realized that I. had never paid much attention to them before.
M: Well, there's a big variety, isn't there？
W: Yeah. But they all have one of three basic forms, hexagonal columns, hexagonal plates, and branching star-shaped form.
M: I wonder why the forms are different. Maybe because ice starts to form. on dust particles with different shapes .
W: Well, I thought it might have something to do with the water saturation of the air, but we were both wrong. The author of this article did extensive research and concluded that the shape of snow crystals is largely controlled by the temperature of the air. For example, the feathery star-shaped snowflake that everyone thinks is typical occurs only at a specific temperature.
M: Doesn't the relative humidity have anything to do with the shapes？
W: Apparently not. The effective super-saturation is simply to alter growth rate. The greater use the saturation, the faster the snowflakes form.
M: Mm, next time it snows, I'll make a point of taking a closer look.
Why has the woman brought up the subject of snowflakes？
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