W: What do you mean?

　　M: Today’s the final day you can withdraw and get a full refund.

　　W: Maybe I really should. What do you suggest?

　　M: I wish you could attend classes regularly; however, if you don’t believe you’re capable of this, then don’t waste your money.

　　W: Thanks, Dr.Livingston. I really appreciate your advice. If it’s okay,(21) I suppose I’ll go ahead and drop the class.

　　M: It’s entirely up to you, but that might be best if you don’t think things are going to change. Excuse me, the students are coming, and I’ve got to get ready for class. I wish you the very best of luck, Janna.

　　W: Thank you, Dr.Livingston. Goodbye.

　　Questions 19 to 21 are based on the conversation you have just heard.

　　19. What is the woman’s problem?

　　B)。【解析】四個選項均為現在完成進行時態，由此可以推斷，本題考查的內容可能是某人最近一段時間發生的事情或者持續的狀態。女士解釋說，抱歉，昨天沒有來上課(missing class)。男士說，并不僅僅是昨天，一共上過6次課，已經缺了4次。由此可見女士的問題在于并沒有每天都來上課(hasn�餿 been attending class every day)。故正確答案為B)。

　　20. How many classes has the woman attended?

　　A)。【解析】四個選項均為數字，由此可以推測，本題的考查內容是關于數字的。 從男士的話中可知，一共上過6次課，女士一共缺了4次(missed 4)。相減得到女士上課的次數為2次。故正確答案為A)。

　　21. What does the woman decide to do?

　　C)。【解析】四個選項均為不定式，由此可以推測，本題考查的內容可能是關于某個決定。女士說如果可行，就決定退課(drop the class)。可見女士打算放棄這門課程，故正確答案為C)。

　　Conversation Two

　　W: Dr.Thomas? This is Keet Bradley from the daily news.(22)I’d like to ask you some questions about the new official standard weight that you purchased.

　　M: I’d be happy to help you. What would you like to know?

　　W: First of all, how was the standard weight used?

　　M: Well, the people in our department (23)use it to check the scales all over the country. The department of weights and measures, we are a government agency. It’s our responsibility to see that (23)all the scales measure a kilogram accurately so this is the way we use to adjust the scales.

　　W: How did you check the scales before?

　　M: We have an old standard weight that we used to use.(24)It had to be replaced because it was imprecise. You see it was made of poor quality metal that was too porous. It absorbed too much moisture.

　　W: Oh. So when the weather was humid it weighed more and when it was dry it weighed less.

　　M: Exactly. And that variation can affect the standards of the whole country. So our department had the new weight made out of higher quality metal.