19. What is the man surprised to learn?

　　【解析】选[C]。男士来借阅论文，被告知论文都被借走(been checked out)了，不由得说，You are joking, all of them?其中，You are joking表示不相信、惊讶之情(surprised)。同义的表达有Are you kidding?

　　20. What does the woman say about Professor Grand?

　　【解析】选[D]。根据选项无法判断问题是什么的时候，更需要我们注意听问题。 题目问Professor Grand的情况，图书管理员说她已经两次请Professor Grand拿来多份论文，但总是很快就被借走了。其他选项在对话中都找不到依据。

　　21. What does the woman suggest that the man do?

　　【解析】选[A]。对话的最后部分女士建议男士明天一早就过来(come in first thing tomorrow morning)，并告诉他开馆时间为8点。

　　Conversation Two

　　M: Come on, Julie, how are we going to convince everybody that I'm the best candidate?

　　W: It won't be easy!

　　M: Thanks a lot!

　　W: Oh, just kidding. Actually, I think once we show everyone how well you did asjunior class treasurer, you are sure to be elected president.

　　M: Well..., what's your strategy?

　　W: One thing I was thinking of is to hang campaign posters in all the hallways.

　　M: But everyone puts up posters. We need to do something different.

　　W: Let me finish. The campus radio station is willing to let you have five minutestomorrow morning at seven to outline your plans for the year. Lots of students will hear you then.

　　M: Great idea!

　　W: I've also arranged for you to give a speech during dinner time tomorrow. Over a hundred students will be there. And you can answer questions after you finish speaking.

　　M: That means I'd better come up with a speech pretty quickly. How about if I write it tonight and show it to you after chemistry class tomorrow?

　　W: Fine. I'll see you after class.

　　M: You are really good at this. I'll be glad you agreed to help me out.

　　Questions 22 to 25 are based on the conversation you have just heard.

　　22. What election are the speakers discussing?

　　【解析】选[D]。听对话，注意对话开头部分，捕捉与elected相关的信息，根据the best candidate，sure to be elected president可以判断他们谈论的是学生会主席的选举。

　　23. What do we learn from the conversation?

　　【解析】选[D]。对话首句男士问how are we going to...;女士策略：One thing I was thinking of..., I've also arranged for you...。根据细节进行推理可知，女士是在帮助男士策划竞选活动。

　　24. What will the man do tonight?

　　【解析】选[B]。听音时捕捉与选举有关的动作行为：come up with a speech以及write it tonight。问题问男士今天晚上将要做什么，[B]为细节再现。

　　25. What will the speakers do after chemistry class?

　　【解析】选[B]。听对话，捕捉与选项有关的表动作的词句，come up with a speech，and show it to you after chemistry class。问题问谈话者化学课后做什么。根据细节进行推理，应该是Review the man's talk。