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题目
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.
更多“If someone asked you, “What color is the sky?” I expect that you would answer, “blue.” I”相关的问题
第1题
When complaining in person, you should
A．get a receipt for what you buy
B．speak to someone in authority
C．talk directly to the assistant
D．ask to see the buyer
第2题
听力原文：Would you like this jacket or should I give you a different color？
(A) You definitely have to bring your jacket.
(B) I can give you a hand with that.
(C) What colors do you have？
(38)
A．
B．
C．
第3题
M: I don't know for sure, I just thought it would be fun.
Q: Why did the man go sky diving？
(15)
A．Because he enjoyed it.
B．Because he liked adventures.
C．Because he thought sky diving was an interesting activity.
D．Because he thought sky diving was terrible.
第4题
—What color do you want to use to paint the house？ —I would like the house ______ white.
A．painted
B．painting
C．to paint
D．having been painted
第5题
听力原文：What color will you paint the walls？
(A) I think green's a good color.
(B) Because he painted it blue.
(C) He read the poster on the wall.
(24)
A．
B．
C．
第6题
听力原文：W: Hi, Mark, I didn't know you could paint.
M: Well, I'm just learning. It's for my studio art one of one class.
W: It's pretty good for a beginner.
M: Oh thanks, Judy. The instructor really liked my schedules, but she hasn't seen my painting yet.
W: En, there seems to be something wrong with it though.
M: Yeah, I know what you mean. It doesn't look like to me either.
W: I think I know, look here at the sky, it just seems to filled in with other colors of paining.
M: What do you mean？ Everyone knows the sky is blue.
W: Well, that depends. Sometime it is and sometime it isn't, as sunset can be full of reds and purples. Well, even now, look at now Mark, what do you see？
M: It looks blue to me.
W: Look again. Do you see a kind of tallish color？
M: Oh yeah, I see what you mean.
W: By adding some tan to your sky, I think you'll get more actual picture, and the color will look more natural.
M: I think I'll try that. Gee, how do you get to know so much about paining？ Have you taken a lot of courses？
W: No, actually. But my father is an artist.
M: A professional artist？
W: Oh yeah. He shows his staff in lots of exhibits, everything is when we were kids; he always talks to us about his work.
M: I wish we could talk some more Judy. How about going for a cup of coffee？ I'm ready for a break.
W: I'd love to, but I have to study for a history exam. In fact, I was just on my way to the study group, and I think I am already late. Maybe tomorrow？
M: Great, I'll meet you at the students' center after my class. A little after three, OK？
W: Sounds good. Get around now.
M: Bye, Judy.
What is the man doing？
A．Making a gift for the woman.
B．Working on a class assignment.
C．Discussing his career.
D．Preparing to teach an art class.
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