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My name is Jim White. I live in America. I had a very u __1.__ experience on Sunday. I s___2.___a UFO in the daytime. Early this spring, I went outside w___3.___ my friend Bill who lived close to me. We were walking to a hill when I saw a l___4.___ bright light dancing in the sky. I called Jim and asked him to look up. He kept a___5.___, “What is that?” “A UFO!” I shouted excitedly. I n__6.__ it was round and red in the center.
After we looked at it for a m__7.__, we found it seemed that it had wings, but it was still round. Bill would not b__8.___ me when I told him it must be a UFO. We shouted t__9.__ it and we wished that it would land. We wanted to know i__10._ there was an alien in it. But soon it disappeared. I guessed we scared it off.
Do you believe me? It’s a true story.
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After we looked at it for a m__小题7:__, we found it seemed that it had wings, but it was still round. Bill would not b__小题8:___ me when I told him it must be a UFO. We shouted t__小题9:__ it and we wished that it would land. We wanted to know i__小题10:_ there was an alien in it. But soon it disappeared. I guessed we scared it off.
Do you believe me? It’s a true story.
wrong. The sky has no colour. It looks blue because we are looking at blue sunlight. The sunlight is
shining on little bits of dust ( 灰尘) in the air.
Is the sky full of air? I'm sure that you have asked this question, too. We know that there is air all
around the world, but we couldn't fly very high because as we go higher, the air gets thinner. If we go far
enough away from the earth, we find there is no air.
Maybe we can answer some questions now. What is the sky? Where is it? It is all round the world. The
sky is space (宇宙空间). In space there is nothing, but only the sun, the moon, and all the stars.
B. we like this colour
C. we don't have other colours
D. we don't like other colours
B. a big ball with air all
C. full of dust
D. space with the sun, the moon and the stars
B. Air and blue light.
C. Our own feeling.
D. Both A and B.
B. the high sky is full of dirty air
C. there is no air in the high enough sky
D. the sun is too hot
B. wants to tell us not to go to space
C. once flew in the sky
D. enjoys answering people's questions
are wrong. Because the sky has no color.
What's in the sky? Is the sky full of (充满) air? I'm sure that you have asked these questions. We all
know that there is air around the world. We can not live without air. Planes can't fly very high because
as we go higher, the air gets thinner (更稀薄). If we go far enough away the earth, we can find that there
is no air. The sky is space (太空). In the space there is nothing but the sun, the moon and the stars.
People always want to know more about other worlds in space. They have looked at them through
telescopes (望远镜) and in this way they have known much. They know a lot about the moon now. but
they want to know more about space. I'm sure they will go farther and farther until they know all about it.
1. It's not really right _____.
A. to answer questions about space
B. to answer questions about the sky
C. to say that the sky is blue
D. to say that the sky has no color
2. _____ helps plane fly.
A. The sky
B. The air
C. Space
D. The sun
3. There is no air _____.
A. around us
B. around the eart
C. in the sky
D. high enough in the sky
4. There is _____ in space.
A. air
B. nothing
C. nothing but the sun, the moon and the stars
D. nothing or the sun, the moon and the stars
5. With telescopes people can know _____ in space.
A. much
B. nothing
C. everything
D. all