What was essential to a science of refrigeration according to the passage？

For him (to be re-elected), what is essential is not that his policy (works), (but that) the public believe that it (is).

A．to be re-elected

B．works

C．but that

D．is

A.A healthy diet should contain all the essential nutrients.

B.We shouldn't eat too much fast food because it's rich in fat.

C.A lot of food safety issues have been exposed in the food industry.

What is the best advice for the trip？

A．To bring as much clothing as possible.

B．To hire a tourist guide.

C．To bring only essential clothes.

D．To learn some Roman history.

What is the irony about the debate over immigration？

A．Even economists can't reach a consensus about its impact.

B．Those who are opposed to it turn out to benefit most from it.

C．People are making too big a fuss about something of small impact.

D．There is no essential difference between seemingly opposite opinions.

What does the example of the first paragraph mainly want to express？

A．People should get well-prepared before the negotiation.

B．It is essential to form. a united strategy to ensure a negotiation team's success.

C．The negotiation team's members shouldn't talk without permission.

D．A negotiating team needs a skilled leader who can keep disagreements inside the team.

What do Dr. Ravitchs basic principles of education center on？

A．All children should have access to an education of high quality.

B．Accountability and choice are very effective means.

C．More public services should be privatized at a faster speed.

D．Physical education isn"t an essential part of high-quality education.

s a man who gets on well with other people. And you can't get on well with people if you don't like them. We just want you to know what we are looking for, so you can decide whether this is a job you really want.

&8226;You will hear five short recordings.

&8226;For each recording, decide who the speaker is.

&8226;Write one letter (A-H) next to the number of the recording.

&8226;Do not use any letter more than once.

&8226;You will hear the five recordings twice.

A sales representative

B travel agent

C product designer

D secretary

E market researcher

F receptionist

G public relations officer

H personnel officer

听力原文：W: So, what special needs do business travelers have？

M: [10] One of the most important things is a quick check-in and check-out. Room service is also very important. [7]Guests often stay in their rooms working and don't have the time to go out to a restaurant, so they want their meals served in their rooms.

W: And what facilities are there in the rooms？

M: Well, nowadays communication facilities are essential, so things like a modem socket and a fax are very important.

W: Yes, of course.

M: The lighting is also very important. [10]As I said, guests often spend their evenings preparing work, so they need good lighting at their desks.

W: And what about facilities in the hotel in general？

M: The bars are important. [8]Corporate guests tend to spend much more time in the hotel bars than tourists. It's very important to provide a business centre, too.

W: What services does the business centre provide？

M: Basic secretarial services such as photocopying and typing. [9]It also coordinates conferences and any catering which is included in them.

W: Right, [10] and what about distance to the airport and city centre？ Is that important？

M: Yes. We're in the east of London so we're near City Airport. A lot of our guests have meetings in this area, so they don't want to be near Heathrow Airport or right in the city centre.

Many business guests like to eat in their rooms

A．because it is cheaper than in the restaurant.

B．so they can do more work.

C．so they can watch TV while they eat.

D．because they are tired after the long trip.

听力原文：M: Well, Donna, you look so happy. Any good news？

W: No…Yes…I have a date tonight, but…

M: Oh, that's really a celebration.

W: Well. I've never done this before. I feel kind of silly, but here goes. Anyway, I am a little nervous.

M: Don't be shy. Tell me what kind of men do you like to date？

W: I guess I really like men who are funny. I love to laugh and be happy. That's the most important thing. I don't like men who are really loud. I mean, I like men to laugh. I don't want them to sound like donkeys!

M: What about the appearance, must he be handsome？

W: Not necessary. But he should be tall, muscular, deeply emotional and totally self-controlled. Besides, I like men who are intelligent and open-minded. Humor is important. I love talking about books, movies and politics.

M: Well, what kind of men are not to your liking？

W: Let me see. I hate men who think they are always right, the stubborn one often getting into bad mood if you don't agree with them. I don't like moody person.

M: What do you think is the most essential for young people？

W: Mutual understanding. At least we shall respect each other.

M: Sounds great. Good luck tonight.

What kind of topic do you think Donna does NOT like？

A．Movies.

B．Books.

C．Politics.

D．Music.

ng corrected all the time: if corrected too much, he will stop talking. He notices a thousand times a day the differences between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people' s. In the same way, children learning to do all the other things they learn to do without being taught——to walk, run, climb, whistle, ride a bicycle——compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes for himself, let alone correct them. We do it all for him. We act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Soon he becomes dependent on the teacher. Let him do it him self. Let him work out, with the help of other children if he wants it, what this word says, what the answer to that problem is, whether or not this is a good way of saying or doing this or not.

If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such routine work？ Our job should be to help the child when he tells us that he can' t find the way to get the right answer. Let' s end all this nonsense of grades, exams, and marks. Let us throw them all out, let the children learn what all educated persons must some day learn and how to measure their own understanding, and how to know what they know or do not know. Let them get on with this job in the way that seems most sensible to them, with our help as school teachers if they ask for it. The idea that there is a body of knowledge to be learned at school and used for the rest of one' s life is nonsense in a world as complicated and rapidly changing as ours. Anxious parents and teachers say, "But suppose they fail to learn something essential, something they will need to get on in the world？" Don't worry! If it is essential, They will go out into the world and learn it.

What does the author think is the best way for children to learn things？

A．By copying what other people do.

B．By making mistakes and having them corrected.

C．By listening to explanations from skilled people.

D．By asking a great many questions.