Now you'll hear the two long conversations.
Conversation One
M: Hey Linda, did you get that letter about the new options for food services next year?
W: Not yet. Are there a lot of changes?
M: There sure are. Instead of paying one fee of all meals for the whole school year, [19]we will be able to choose by seven, ten, fourteen or twenty-one meals per week. They give you a card with the number of meals for a week marked on it.
W: That's a big change. And a complicated system.
M: Yeah. But it will be much better for people who don't eat three meals a day, seven days a week in the cafeteria because they don't have to pay for meals they don't eat.
W: So what's the deal for those who do eat at school all the time?
M: It's better for them too. [20]Because the more meals you contract, the cheaper each one is.
W: I see. Still sounds complicated.
M: True. It took me several hours to figure it out. I decided to go with the ten meals.
W: Why is that?
M: Well, I never eat breakfast and I often go away on weekends. So the ten meal plan gives me lunch and dinner each weekday at a fairly low price.
W: And what about the weekend when you are on campus?
M: Well, [21]there are often guests on campus at weekends. So they allow you to buy single meals on a walk-in basis on Saturdays and Sundays. The price per meal is much higher in that way. But it will still be less for me to pay single prices on the weekends rather than sign up for the fourteen-meal-a-week plan.
W: Oh, I'll have to sit down and figure out how I can get the best deal.

Questions 19 to 21 are based on the conversation you have just heard.
19. What's the main feature of the new method of paying for meals?
正確答案：B
解析：男士說：“我們可以選擇一周7、10、14和21餐。他們給你一張卡，上面標著一周幾餐?！彼訠正確。對話一開始就提到“new options for food service”這個話題，整個對話都是圍繞這個話題展開，所以我們很自然要找出“What are the new options?”的答案。B中的how many meals a week是對話中seven, ten, fourteen or twenty meals per week... the number of...的概括。
20. How does the new plan benefit students who eat all their meals at the school cafeteria?
正確答案：D
解析：對話中聽到“So what's the deal for those who do eat at school all the time?”時，就要集中注意力聽下文。男士說：“他們訂的飯越多，每頓飯就越便宜。”所以D正確。所有選項都是以They作主語，而根據上一題的選項內容，大致可以判斷應該是指學生。選項內容都是在描述好處，可猜測本題目問學生就餐的好處。對話中的“the cheaper each one is”對應選項D的“pay less per meal”。
21. How can weekend guests have meals at the cafeteria?
正確答案：A
解析：男士說：“我們學校周末經常會有很多訪客。學校允許他們在周末臨時買單獨的一餐?！彼訟正確。所有選項都是“by doing sth.”的結構，語法上是回答“how”的問題，故基本可以推斷出題目。對話中的“single meals”對應選項A的“meals one at a time”。同義替換為答案。