练习册

  • 练习册
  • 试题
    (1). When you look 1 the sky at night, what 2 you see ? Can you 3 a dog or a bear? Can you see a horse 4 wings? Long ago, people looked at the sky. 5 saw 6 stars and planets. But they 7 nothing about them. Some people thought the stars made pictures 8 the sky. They 9 the pictures names. We 10 use those names. In those 11 , people thought stars told 12 things and bad things . 13 a while, men looked at the sky 14 telescopes . The telescopes 15 them learn much about the stars. 16 learned 17 the stars didn't 18 good luck or bad luck. But knowing about stars helped men in many other ways. It helped men 19 the calendar . It helps men 20 about the weather. It helps men plan space trips. Men are still learning more about the stars. What men learn now may help you go to another planet someday. 1. A. for B. on C. above D. at 2. A. do B. did C. does D. thing 3. A. saw B. will see C. see D. look 4. A. on B. with C. at D. in 5. A. He B. Where C. They D. I 6. A. the B. which C. what D. that 7. A. know B. thought C. saw D. knew 8. A. at B. in C. but D. to 9. A. pay B. buy C. gave D. cost 10. A. still B. yet C. already D. also 11. A. seconds B. minutes C. hours D. days 12. A. good B. better C. best D. well 13. A.Before B. After C. Past D. With 14. A. use B. above C. through D. though 15. A. helped B. wanted C. asked D. took 16. A. Boy B. Boys C. Woman D. Men 17. A. this B. that C. these D. those 18. A. bring B. borrow C. use D. buy 19. A. made B. did C. make D. does 20. A. tell B. say C. talk D. speak 【查看更多】

     

    题目列表(包括答案和解析)

    When you look at the sky at night, the moon looks bigger than the stars. Actually, the moon is much smaller than the stars and the sun. It's much smaller than the earth. But the moon is much closer to us than any star. That is why it looks so big. If you hold a coin close to your eye, it looks big. If you look at it across the moon, it looks small.
    The moon moves around the earth. It makes one trip in about four weeks. The moon looks flat to us. But it is a round ball, like the earth.
    People once thought the moon had fire on it. They thought the fire made it bright. Now we know the moon is like a mirror. It gets its light from the sun.
    Our sunlight comes from the sun, too. What is the sun? The sun is a star. The stars we can see have their own light. There are many big stars we cannot see. Their light had burned out. Others are still bright, but they are so far away that we cannot see them. The sun looks bigger and much brighter than other stars because it is the nearest of all stars. The sun and the other stars we see are very hot, but the air around us saves us from the heat of the sun.
    The sun gives us light and warmth. It makes plants grow and turns leaves green. It makes life possible on our earth. It is a life giving star.
    【小题1】 It takes _______ for the moon to go around the earth.
    A．more than a weekB．nearly a monthC．half a yearD．more than a year
    【小题2】 The moon is bright because _______.
    A．there is some fire on itB．it is near the sun, too
    C．there is a big mirror on itD．it can get light from the sun
    【小题3】 The passage tells us _______.
    A．the sun is not the biggest starB．the sun is bigger than any other star
    C．only the sun can shineD．the sun is one of the farthest stars to us
    【小题4】 Why do we call the sun "a life giving star"?
    A．Because it gives us warmth.
    B．Because there are some living things on it.
    C．Because plants and animals can't live without it.
    D．Because people have to live in the dark without it.

    查看答案和解析>>

    When you look at the sky at night, the moon looks bigger than the stars. Actually, the moon is much smaller than the stars and the sun. It’s much smaller than the earth. But the moon is much closer to us than any star. That is why it looks so big. If you hold a coin close to your eye, it looks big. If you look at it across the moon, it looks small.
    The moon moves around the earth. It makes one trip in about four weeks. The moon looks flat to us. But it is a round ball, like the earth.
    People once thought the moon had fire on it. They thought the fire made it bright. Now we know the moon is like a mirror. It gets its light from the sun.
    Our sunlight comes from the sun, too. What is the sun? The sun is a star. The stars we can see have their own light. There are many big stars we cannot see. Their light had burned out. Others are still bright, but they are so far away that we cannot see them. The sun looks bigger and much brighter than other stars because it is the nearest of all stars. The sun and the other stars we see are very hot, but the air around us saves us from the heat of the sun.
    The sun gives us light and warmth. It makes plants grow and turns leaves green. It makes life possible on our earth. It is a life giving star.
    【小题1】 It takes _______ for the moon to go around the earth.

    A．more than a weekB．nearly a monthC．half a yearD．more than a year
    【小题2】 The moon is bright because _______.
    A．there is some fire on itB．it is near the sun, too
    C．there is a big mirror on itD．it can get light from the sun
    【小题3】 The passage tells us _______.
    A．the sun is not the biggest starB．the sun is bigger than any other star
    C．only the sun can shineD．the sun is one of the farthest stars to us
    【小题4】 Why do we call the sun "a life giving star"?
    A．Because it gives us warmth.
    B．Because there are some living things on it.
    C．Because plants and animals can’t live without it.
    D．Because people have to live in the dark without it.

    查看答案和解析>>

    When you look at the sky at night, the moon looks bigger than the stars. Actually, the moon is much smaller than the stars and the sun. It’s much smaller than the earth. But the moon is much closer to us than any star. That is why it looks so big. If you hold a coin close to your eye, it looks big. If you look at it across the moon, it looks small.
    The moon moves around the earth. It makes one trip in about four weeks. The moon looks flat to us. But it is a round ball, like the earth.
    People once thought the moon had fire on it. They thought the fire made it bright. Now we know the moon is like a mirror. It gets its light from the sun.
    Our sunlight comes from the sun, too. What is the sun? The sun is a star. The stars we can see have their own light. There are many big stars we cannot see. Their light had burned out. Others are still bright, but they are so far away that we cannot see them. The sun looks bigger and much brighter than other stars because it is the nearest of all stars. The sun and the other stars we see are very hot, but the air around us saves us from the heat of the sun.
    The sun gives us light and warmth. It makes plants grow and turns leaves green. It makes life possible on our earth. It is a life giving star.
    小题1: It takes _______ for the moon to go around the earth.
    A．more than a weekB．nearly a monthC．half a yearD．more than a year
    小题2: The moon is bright because _______.
    A．there is some fire on itB．it is near the sun, too
    C．there is a big mirror on itD．it can get light from the sun
    小题3: The passage tells us _______.
    A．the sun is not the biggest starB．the sun is bigger than any other star
    C．only the sun can shineD．the sun is one of the farthest stars to us
    小题4: Why do we call the sun "a life giving star"?
    A．Because it gives us warmth.
    B．Because there are some living things on it.
    C．Because plants and animals can’t live without it.
    D．Because people have to live in the dark without it.

    查看答案和解析>>

    阅读填词

    　　Stop reading for a minute and think about what you see when you look up in the sky on a clear night. You may see many stars. Long ago, farmers w 1 some stars to know when to plant their crops. Travelers did s 2 to find their way in the dark. Today stars are a s 3　　 important to some people.

    　　Scientists found out that most stars are very big. In fact some stars are so far away from us that it would take m 4 of light-years to get to them even by spaceship.

    　　A 5 thing we know today about stars is that some are made up of hot gases. The gases are so hot that they send out light. If you o 6 look up at a star carefully at night, you may find it twinkles sometimes. As you may understand, light from a star must shine t 7 the air before you can see the star. Air is always moving, it makes light from the star m 8 . When the light moves, it makes the star twinkle. Stars also have different c 9 . To our surprise, the coolest stars are red and the hottest o 10 are blue white.

    1．w　　　2．s　　　3．s　　　4．m　　　5．A　　

    6．o　　　7．t　　　8．m　　　9．c　　　10．o　　

    查看答案和解析>>

    How many things can you see in the night sky? A lot! On a clear night you can see the moon, some planets, and thousands of sparking stars.
    You can see even more with a telescope. You might see that many stars look larger than others. You might see that some stars that look white are really red or blue. With bigger and bigger telescopes you can see more and more objects in the sky. And you can see those objects in more and more detail.
    But scientists believe there are some things in the sky that we will never see. We won’t see them with the biggest telescope in the world, on the clearest night of the year.That’s because they’re invisible. They’re the mysterious dead stars called black holes.
    You might find it hard to imagine that stars die. After all, our sun is a star. Year after year we see it up in the sky, burning brightly and giving us heat and light. The Sun certainly doesn’t seem to be getting old or weak. But stars do burn out and die after billions of years.
    As a star’s gases burn, they give off light and heat. But when the gases run out, the star stops burning and begins to die.
    So next time you look up at the night sky, remember: there’s more in the sky than we can see!
    【小题1】On a clear night we might see things except______.

    A．the moonB．some planetsC．sparkling starsD．the sun
    【小题2】How can we see even more in the sky?
    A．By using a telescope
    B．By using a microscope
    C．By climbing up to the top of a mountain
    D．By going outside on a clear night.
    【小题3】What does the underlined word”invisible”mean in Chinese?
    A．看不见的B．听不见的C．摸不着的D．无形的
    【小题4】When a star’s gases_______,the star begins to die.
    A．burnB．run outC．give off heatD．get weak
    【小题5】Which of the following is NOT TRUE according to the passage?
    A．We might see that many stars look larger than others with a telescope
    B．We might see that some stars that look white are really red and blue with a telescope.
    C．We can see some objects in more and more detail with bigger and bigger telescopes.
    D．The sun certainly seems to be getting old and weak.

    查看答案和解析>>


    同步练习册答案