A、A learned one. B、A born one. C、A normal one. D、A foolish one. A虽然四个选项都是名词性短语，但变化的是中间的修饰词，故听音时要留意对某种事物或行为的描述。男士说在心理学课上讨论过脸红这个问题

M: Hi, Sarah. What’s up?
W: Oh, hi, I just got out of a history class. I had to give a presentation.
M: How did it go?
W: Terribly. I’m sure I made a fool of myself.
M: Why? Weren’t you prepared?
W: No, it was not that. I just get so embarrassed and nervous whenever I have to speak in front of a group of people. I stand up and my face gets red and then I get even more nervous because I know everyone can see me blushing.
M: It’s not so bad to blush.
W: But it happens all the time. If the professor asks a" question and I know the answer, I blush like crazy if he calls on me. Doesn’t that ever happen to you?
M: No, not really. Maybe you should just try to forget about the people. Look at something else in the room like the exit sign.
W: I guess I could try that but I doubt it’ll help.
M: You know, we talked about it in psychology class. Blushing, even though it’s involuntary, is more or less a learned behavior.
W: What do you mean?
M: Oh, children hardly ever blush at all. And among adults, supposedly, women blush more than men.
W: I wonder why?
M: I don’t know, but I have a friend at high school, Brian Smith. It was really easy to make him blush. He turned red whenever a waitress would ask him for his order.
W: I’m not that bad. Well, I’ve got to get going for my next class. I’ll talk to you later.
8. What was the woman’s problem?
9. Why might looking at the exit sign help the woman according to the man?
10. What kind of behavior does psychology classify blushing as?
11. Why does the man mention his friend Brian?