A、Controversial. B、Impersonal. C、Patronizing. D、Cooperative. D概括推断题 从对话中可以看出教授的课很受学生欢迎，课后很多学生还会和教授讨论交流，由此可以判断他们师生之间合作得很好。

M: Hi, Susan. Where were you at lunchtime? I was saving a seat for you in the cafeteria.
W: Oh, sorry to miss you, but my thirst for knowledge was greater than my pangs of hunger.
M: I never had that problem. So where were you?
W: My political science class ran overtime.
M: That’s been happening quite a bit lately, hasn’t it?
W: I guess so. Actually what happens is that a bunch of us hung around for a while after class to talk with our professor and ask him questions.
M: Who is this 20th century Socrates?
W: Professor Hall. Have you heard of him?
M: Mm. He does have a good reputation in the Political Science Department.
W: And a well-deserved one. The same students who fall asleep in discussion groups and in seminars fight for front-row seats in his lectures.
M: Oh, no. I hope this isn’t catching.
W: You can joke. But it’s great to have a professor who is not only interesting but prepares to give up time for students.
M: I know. There I really agreed. Maybe I should sit in on his class sometime. Do you think he’d care?
W: Not at all. Lots of students bring along their friends and he says he feels flattered.
M: Well, just to be safe, I think I’ll bring my lunch along as well.
W: I’ll make a good student of you yet.