How much is the air ticket？ （)

听力原文：M: Can you tell me how much it would cost to send this package by air？

W: Do you want to insure it？

Where is this conversation probably taking place？

A．In a post office.

B．At an insurance agency.

C．On an airplane.

D．In a moving company.

ould go out and get some fresh air？

W: Thanks for the advice. But this is how I relive my stress, I'd rather not get too far behind.

What can you infer from the woman's response？

A．She doesn't have time to go outside.

B．She'll consider the man's advice.

C．She knows how to relieve her stress.

D．She'll feel more stressful if she gets behind in her lessons.

Year round flowers, year round swimming. How do you like it？

M: Well, the beaches are beautiful. But the people there are terribly annoyed by the dirty air. I mean, the combination of fog, smoke and automobile exhaust. There is not enough wind to blow it away.

Q: What does the man think of Los Angeles？

(16)

A．The air is polluted.

B．The people there are terrible.

C．It's too windy.

D．The beaches are dirty.

hem in the corner of a shop. Others are large buildings. They are open five days a week and Saturday mornings. From Monday through Friday they are usually open from 8: 30 to 4: 30.

If you know how much the postage for your letter, you can buy stamps from machines. Stamps are sold at many different prices, from one cent to many dollars. If you are not sure how much postage is for your letters, you can ask the clerk(职员). He or she will give you the stamps you need.

If you are sending your letters far away, write on the envelope that you want them to go by air or use an air-mail envelope. Remember that postage will be more expensive for a letter you want to send overseas.

At a post office you can also buy postcards. A postcard is cheaper than a letter. Usually the price of postage for a postcard is about half that of a letter. The postcards you buy at a post office do not have pictures. They are also not to be sent outside the country.

Letters are an easy and cheap way to communicate(交流)with people in many different countries.

There is ______a post office in each town in America.

A．hardly

B．usually

C．nearly

D．almost

If someone asked you, “What color is the sky？” I expect that you would answer, “blue.” I am afraid that you would be wrong. The sky has no color. When we see blue, we are looking at blue sunlight. The sunlight is shining on little bits of dust in the air.

We know that there is air all around the world. We could not breathe without air. Airplanes could not fly without air. Thy need air to lift their wings. Airplanes cannot fly very high because as they go higher the air gets thinner. If we go far enough away from the earth, we find there is no air. What is the sky？ The sky is space. In this space there is nothing except the sun, the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space. They have looked at them through telescopes and in this way they have found out a great deal. The moon is about 384,000 kilometers away from the earth. An airplane cannot fly to the moon but there is a thing that can fly even when there is no air. This is rocket.

I am sure that you are asking, “How does a rocket fly？” if you want to know, get a balloon and then blow it up until it is quite big. Do not tie up the neck of the balloon. Let go! The balloon will fly off through the air very quickly. The air inside the balloon tries to get out. It rushes out through the neck of the balloon and this pushes the balloon through the air. It does not need wings like an airplane. This is how a rocket works. It is not made of rubber like a balloon, of course. It is made of metal. The metal must not be heavy but it must be very strong. There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket, the rocket is pushed up into the air.

Rockets can fly fat out into space. Rockets with men inside them have already reached the moon. Several rockets, without men inside them, have been sent to other worlds much father away. One day rockets may be able to go anywhere in the space.

36. What color is the sky()？

A. It is blue .

B. It is white.

C. It is grey.

D. It has no color.

37. When an airplane flies too high()？

A. the air will be too thin to support its wings

B. the air will become thicker

C. the air will exert pressure on it

D. the air will disappear in no time

38. A rocket can fly to the moon because ().

A. it looks like a balloon

B. it is much lighter than an airplane

C. it doesn’t have wings

D. it works like an untied balloon

39. Which of the following statements about a rocket is NOT true()？

A. It can fly when there is no air.

B. It can fly without wings

C. It is made of strong metal

D. it is propelled by burning gas inside it.

40. A rocket is pushed up into the air when ().

A. hot gas rushes out of its head

B. it is powered by gas

C. hot gas rushes out of its bottom

D. hot gas rushes out of its neck.

The word horsepower(马力) was first used two hundred years ago. (200年前“马力”这个词首次使用。) James Watt had made the first widely used steam(蒸气)engine. He had no way of telling people exactly how powerful it was, for at that time there were no units for measuring(测量)power. Watt decided to in one minute. He called that unit one horsepower. With this unit he could measure the work his steam engine could do. He discovered that a horse could lift a 3,300-pound weight 10 feet into the air in one minute. His engine could lift a 3,300-pound weight 100 feet in one minute. Because his engine did ten times as much work as the horse, Watt called it a ten horsepower engine. The passagesays that Watt made the first widely used steam engine. A.T

B.F

Watt wanted to find a way to lift a 3300-pound weight.A.T

B.F

One horsepower would equal the weight a horse could lift.A.T

B.F

Watt made up a unit of measurement based on the strength of a horse.A.T

B.F

The title of the passageis "How the Term Horsepower Came into Being".A.T

B.F

请帮忙给出每个问题的正确答案和分析，谢谢！

听力原文： When US spacewoman Joan Higginbotham is not flying and working in space, she might be found somewhere on earth giving a speech. Higginbotham, who grew up in Chicago, and became an engineer before joining NASA, that is, the National Air and Space Administration, gives about a dozen speeches a year. Each speech is different, because she tailors her remarks to each audience. Through interviews and emails, she finds out in advance her listeners' educational level and what information they want to know. On the subject of space walks, for example, audiences vary in their interests and how much complexity they can comprehend. To elementary school children, Higginbotham may discuss a problem that many kids want to know about. "How do spacemen in a spacesuit eat, drink and go to the bathroom？" Her answer is, "The spacesuit is really a small spacecraft with room for food and water containers and a waste collection system." To a high school audience, she might satisfy a curiosity that often arises in her pre-speech interviews with students who obviously have seen many science fiction movies. "Do spacemen carry weapons in case they encounter enemies in space？" Her answer is, "No!" To scientists, she might provide technical details on such topics as the design of spacesuit that protects spacemen from the deadly temperature extremes of space. Just as elaborate preparation is required for success in space, Higginbotham says that it's important for speakers to learn as much as possible about their listeners before a speech because every audience is different.

(30)

A．She was a tailor.

B．She was an engineer.

C．She was an educator.

D．She was a public speaker.

听力原文：M: Hi Diana, mind if I sit down？

W: Not at all, Jack. How have you been？

M: Good. But I'm surprised to see you on the city bus. Your car in the shop？

W: No. I've just been thinking a lot about the environment lately. So I decided the air will be a lot cleaner if we all use public transportation when we could.

M: I'm sure you are right. The diesel bus isn't exactly pollution free.

W: True. But they'll be running a lot cleaner soon. We were just talking about that in my environmental engineering class.

M: What's the city gonna do？ Install pollution filters of some sort on their buses？

W: They could, but those filters make the engines work harder and really cut down on fuel efficiency. In stead they found a way to make their engines more efficient.

M: How？

W: Well, there is a material called coniine oxide. It's a really good insulator. And a thick coat of it get sprayed on certain part of the engine.

M: An insulator？

W: Well, yeah. Actually, what it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely.

M: So a lot less unburned fuel comes out to pollute the air, right？

W: Yeah, and the bus will need less fuel. So with the savings on fuel oil costs, they say this will all pay for itself in just six months.

M: Sounds like people should all go out and get some of this stuff to spray on their car engines.

W: Well, it's not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10,000 degrees and then, well, you get the idea. It's not something you or I would be a ble to do ourselves.

(23)

A．A new fuel for buses.

B．The causes of air pollution.

C．Careers in environmental engineering.

D．A way to improve fuel efficiency in buses.

听力原文： With the development of science and technology, people have more spare time. But how do we spend the free time？ I prefer to go outdoors and spend my free time in some different places and with some different people.

The first reason for outdoor activities is that I have spent too much time indoors. Most of the time I sit in the classroom, listening to the teachers and doing my exercises. The indoor activities are too limited. Fresh air, sunlight and enough physical exercises are needed for a healthy body. So when I am free, I should go out. The second reason is that I want to have more experiences in my life. When you go out, far away from your daily life, you will meet a lot of people who are quite different from you. It will give you a lot of exciting experiences.

However, outdoor activities will take a lot of money and energy. So if you have not prepared enough, having some amusement indoors is also a good choice, which may be much cheaper and easier to carry out. Reading books and enjoying music are also very good.

What does the speaker prefer to do to spend the spare time？

A．Stay at home.

B．Go outdoors.

C．Watch TV.

iffusion of printing in the 15th and 16th centuries. Yet much had happened【C1】______. As was discussed before, it was not【C2】______the 19th century that the newspaper became the dominant pre-electronic【C3】______, following in the wake of the pamphlet and the book and in the【C4】______of the periodical. It was during the same time that the communications revolution【C5】______up, beginning with transport, the railway, and leading【C6】______through the telegraph, the telephone, radio, and motion pictures【C7】______the 20th-century world of the motor car and the air plane. Not everyone sees that process in【C8】______. It is important to do so.

It is generally recognized,【C9】______, that the introduction of the computer in the early 20th century,【C10】______by the invention of the integrated circuit during the 1960s, radically changed the process,【C11】______its impact on the media was not immediately【C12】______As time went by, computers became smaller and more powerful, and they became "personal", too, as well as【C13】______, with display becoming sharper and storage【C14】______increasing. They were thought of, like people,【C15】______generations, with the distance .between generations much【C16】______.

It was within the computer age that the term "information society" began to be widely used to describe the【C17】______within which we now live. The communications revolution has【C18】______both work and leisure and how we think and feel both about place and time, but there have been【C19】______views about 'its economic, political, social and cultural implications. "Benefits" have been weighed【C20】______"harmful" outcomes. And generalizations have proved difficult.

【C1】

A．between

B．before

C．since

D．later