【解析】[B]從女士的話Let’s go in here and order some coffee中可以得出答案。snack bar意思是小吃店。四個選項中只有可能在小吃店里喝咖啡，因此選擇B項。

　　20. Who is Ed?

　　【解析】[B]從對話中可直接聽出答案，here’s one of Ed’s, my roommate，這一張是Ed的照片，我的室友。由此可見Ed是男士的室友。

　　21. Why does the man sometimes get angry at Ed?

　　【解析】[A]本題亦可在對話中直接聽出答案Ed turns his radio up too loud and makes too much noise. Then I get angry. 由于Ed制造太多噪音，男士對此非常生氣。

　　22. What did Ed do during vacation?

　　【解析】[D]最后一張Ed的照片是拍攝于假期他去我家玩兒的時候。由此可見，Ed假期時去了男士的家。

　　Conversation Two

　　M:Do you know what happened to me today? I was so embarrassed。

　　W:What?

　　M: Well, Dr. Brown’s class finished 10 minutes early, so I went to the library between classes. I knew I didn’t have much time, but I wanted to get these books on the Industrial Revolution. I looked them up in the card catalogue and went right to the stack and found them. So I put them in my bookbag and headed back towards the door. Then it happened. The exit gate in front of the door wouldn’t open, and the guard immediately warned me that I hadn’t checked out my books. He thought I was trying to steal them。

　　W:That must’ve been embarrassing. But why didn�餿 the exit gate open?

　　M: I asked them that. It seems that the books in the library are all magnetically coded, and when you check them out, the librarian behind the desk demagnetizes them, then the exit gate will open。

　　W:How interesting! I still don’t quite understand how they do it, though. I’ll have to go to the library and see it for myself。

　　Questions 23 to 25 are based on the conversation you have heard。

　　23.Why did the man decide to go to the library?

　　【解析】[A]布朗教授的課提前十分鐘下課了，因此我決定在課間去趟圖書館。Dr. Brown’s class finished 10 minutes early, so I went to the library between classes。

　　24. After getting the books, what did the man do?

　　【解析】[D]男生拿到書之后直接把書塞到書包里了So I put them in my bookbag and headed back towards the door。從這句話中可得出答案。