I do not think it wise for Judy to lose weight by substituting fruit_______.A. withB.

听力原文：W: This food is terrible. I can't even finish my dinner.

M: I know. You'd think with all the money we paid for the room and board, the university could hire a better food service. Where are you headed next？

W: I'm going over to the students' recreation center to play bridge.

M: You're spending your time on a card game？

W: Not just any card game. It's one of the most strategic there is.

M: So I've heard. Don't you play with a partner？

W: Yeah. Four people play, two against the other two.

M: So you try to play in cooperation with your partner.

W: Actually the cards of one of the four players are turned face up. That player's called the "dummy".

M: I wouldn't like to be called that. When you're the dummy, what do youdo while the cards are being played？

W: Anything you want--sit there and study, shuffle another deck, get snacks for everyone. I like to stand behind my partner and watch.

M: You know I've heard that bridge is habit-forming. You should be careful not to play so much that you don't get your studying done.

W: Don't worry about me. I only play on Thursdays after dinner and sometimes we need a fourth player. If you like, I could teach you.

M: Thanks, but I have pretty heavy workload this semester. I've already spent my evenings doing things I don't really know how to do yet.

(20)

A．In the student recreation center.

B．In the campus dining hall.

C．In the university bookstore.

D．In a classroom.

听力原文： W: Can I help you？

M: Yes, my son and my daughter bought this pen here for my wife's birthday, but it doesn't work so I'd like to exchange it.

W: I see, do you have the receipt with you？

M: Yes, here it is.

W: OK, let me see the pen please. Hmm. It doesn't work at all, does it？ We'll be happy to exchange it for you. Let's see, I'm afraid we don't have another purple one.

M: Oh, now what will I do？

W: Would you like to choose a different color？ We do have this pen in black and yellow.

M: My wife doesn't care for either of those colors. You don't have any other colors？

W: We have it with a red leather cover. That's three dollars more.

M: I don't think so. The children worked hard to save up the eleven dollars for this one. They would probably be upset if I paid for part of their present.

W: If you want, we can order another pen just like this one. There wouldn't be any extra charge for it.

M: That sounds like a good idea. Thank you.

Why did the man’s children buy the pen？

A．It’s a present for the man’s birthday.

B．It’s a birthday present for the man’s wife.

C．It’s a birthday present for the man’s son.

D．It’s a birthday present for the man’s daughter.

Xiaoyan tells David about the people she works with.

David: So who do you usually work with in Shanghai？

Xiaoyan: I work in an office with three other people, Jung, Lee and Liu – they are the Marketing Department and I am their IT expert.

David: do you like it there？

Xiaoyan: Yes, they’re great people.Lee is the Sales Manager.He is responsible for 25 sales people in China.He’s planning a sales campaign for companies at the moment, but he’s visiting the New York office right now.

David: What about the others？

Xiaoyan: Liu is the advertising manager.He’s responsible for the advertising.He’s currently working on TV advertisements.Actually, he’s on holiday in Bali right now.

David: So the office is empty at the moment.

Xiaoyan: Oh no.Jung is always there.She’s the secretary.She’s responsible for the office.

At the moment she’s working on new databases.But actually – it’s 1.00 o’clock in the morning in Shanghai, so I think she’s sleeping right now.

1、How many people does Xiaoyan work with in Shanghai？ ().

A.Two

B.Three

C.Four

2、What does Xiaoyan do in the Marketing Department in Shanghai？ ().

A.She is a secretary

B.She is an IT expert

C.She is the Sales Manager

3、What is Lee responsible for？ ().

A.The advertising

B.The sales people

C.The office

4、What is Liu doing right now？ ()

A.He is on holiday.

B.He is working on TV advertisements

C.He is visiting the New York office.

5、What is Jung’s current project？ ()

A.A sales campaign.

B.TV advertisements.

C.New databases.

听力原文：M: Well, Sally？ Why do you look unhappy？

W: Oh, Hill, I have just had a quarrel with Mr. Smith.

M: Mr. Smith! What on earth was it about？

W: Well, I have made three bad mistakes so far this week. Today I forgot to give him an important message, so he got very angry with me.

M: But I don' t understand. You are usually very careful and never make mistakes.

W: I' m just so tired. I don' t know what I' m doing.

M: Why？ Have you been going to bed late these days？

W: No, I' m usually in bed at about eleven. But I' ve been woken up at about half

past four every morning. And then I cannot go back to sleep again.

M: Why？

W: It' s my new neighbor, the milkman next door. He gets up at half past four and he always turns the radio on loudly.

M: Ask him to turn it down then.

W: It' s difficult. I don' t know him yet.

M: If you don' t want to see him, write him a letter.

W: Do you think it' s a good idea？

M:Yes,I do. I' ll help you write the letter.

W:OK. Let' s try.

Stella was unhappy because she

A．could not sleep at night

B．could not talk to the milkman

C．had quarrelled with Mr. Smith

听力原文：M: I hope it'll be fine tomorrow. I'm going boating with Tom.

W: Oh, I think it will be fine.

M: Are you sure？

W: Yes. I heard it on the radio.

What are the two speakers talking about？

A．A fine boat.

B．Their friend, Tom.

C．The weather.

听力原文：M: I hope it'll be fine tomorrow. I'm going boating with Tom.

W: Oh, I think it will be fine.

M: Are you sure？

W: Yes. I heard it on the radio.

What are the two speakers talking about？

A．A fine boat.

B．Their friend, Tom.

C．The weather.

听力原文：M Whose client is Rebecca Smith？

W I'm not sure. I think Jeff is taking care of her. Why？

M I found some papers that probably fell out of her file while I was making copies. They look pretty important.

W Oh. You should ask Jeff. He was making a lot of copies earlier, so they are probably

his.

What did the man find？

A．A file

B．A schedule

C．Some slides

D．Loose papers

if (wi ＞ w) M[i, w] = M[i-1, w] else M[i, w] = max {M[i-1, w], vi + M[i-1, w-wi ]} return M[n, W] 该程序时间复杂度的上界是O（____）、下界是W（_____）。

A:What do you think of the film？

B:I think it is great.

A. really

B. very

C. most