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______.

The moon is a ball, too, like the sun and the earth. Sometimes it looks as round as a plate, sometimes it looks like half a plate, or like a thin slice(片) of yellow melon(瓜).But whether you can see all of it or not, the moon is always round. Part of it is dark because it is always turned away from the sun. The moon has no light of its own. Moon light is only sunlight shining on the moon.

The moon is much smaller than the sun, even smaller than the stars. As the moon is nearer to us, it looks bigger. All day the stars are in the sky, but the light from the sun is so bright that you can not see them. Stars look as tiny(极小) as pinheads(针头), but some are even bigger than the sun. The sun looks big because it is closer than the other stars. The farther away a thing is, the smaller it looks, even if(即使) it is really very big.

1.No fire on earth 　　　　 .

A. can burn a thing

B. can be seen anywhere

C. is as red as the sun

D. is bigger and hotter than the sun’s flames

2. As everyone knows 　　　　 .

A. the moon turns around the sun just as the earth goes

B. the earth moves around the sun but the moon doesn’t

C. the sun moves around the earth just as the moon does

D. the sun is always turned away from the moon

3. Why has the moon no light of its own? Because 　　　　 .

A. part of it is always turned away from the sun

B. the sunlight is shining on the moon all day

C. it is always round, like a yellow gold(金) plate

D. the article(短文) doesn’t tell us the reason

4. Why can’t we see the stars all day? Because 　　　　 .

A. they are too small to see　　　　　　　　　　　　　　   

B. they are nearer to us

C. the sun light is too bright　　　　　　　　　　　　　　  

D. they look as tiny as pinheads

5.Which of the following is the topic(主题) sentence of the last paragraph(自然段)?

A. The farther away a thing is, the smaller it looks, even if it is very big.

B. The moon is much smaller than the sun, even smaller than the stars.

C. The sun looks big because it is closer than the other stars.

D. Stars look as tiny as pinheads, but some are even bigger than the sun.

At one time or another we have all stopped to think about the weather. Some days the weather is good. Some days the weather is bad. Sometimes a day that seems bad turns out better than you thought it would. There are ways of understanding the weather. One way is to study the clouds. No two clouds are ever alike. We can see the different kinds of clouds and watch them for signs of changing weather. To forecast the weather, there are three things about clouds. you should look for: movement, colour, and change. As a rule, the higher the clouds, the better the weather. And the lower the clouds, the worse the weather is likely to be. Fair-weather cumulus clouds* are another sign of good weather. These are clouds we often see on warm summer days. Clouds can tell you if a storm is on the way. If the thick, fluffy cumulus clouds get bigger early in the day, then you know it will rain. If there is a sudden, cool and dark thunder* cloud appears, then a storm is about to break out. Colours in the sky tell us about the weather, too. A golden ring around the moon warns us that a storm is on the way. A watery yellow sunset is a sign that rain may be near. The rainbow* has a message, too. The colours of the rainbow come from the sun rays shining through falling rain. If you see the sun in the east and a rainbow in the west, the rain may be coming your way. If the sun is in the west and the rainbow is in the east, the rain will be moving away from you.

1. According to this article, one way to understand the weather is to    .

A．study the clouds

B．monitor the temperature every hour

C．watch the signs of the wind

D．note the changes in wet

2. High clouds usually suggest     .

A．bad weather                           B．fine weather

C．rainy weather                          D．windy weather

3. The colours of the rainbow come from    .

A．sun rays shining through falling rain

B．dark thunder clouds in the sky

C．a golden ring around the moon

D．fair-weather cumulus clouds

4. Which of the following would be a good title for this article?

A．The Story of Weather Forecast

B．Fine Weather and Bad Weather

C．Weather Changes

D．Different Kinds of Clouds

5.We may say, take the article as a whole knowledge,      .

A．none of the clouds is the same

B．a storm is to come on soon after a sudden, cool and dark thunder cloud

C．the higher and cumulus clouds may be signs of warm weather

D．all of the above

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!

1. 1.

   On a clear night we might see things except______

   1. A.
      the moon
   2. B.
      some planets
   3. C.
      sparkling stars
   4. D.
      the sun
2. 2.

   How can we see even more in the sky?

   1. A.
      By using a telescope
   2. B.
      By using a microscope
   3. C.
      By climbing up to the top of a mountain
   4. D.
      By going outside on a clear night
3. 3.

   What does the underlined word”invisible”mean in Chinese?

   1. A.
      看不见的
   2. B.
      听不见的
   3. C.
      摸不着的
   4. D.
      无形的
4. 4.

   When a star’s gases_______,the star begins to die

   1. A.
      burn
   2. B.
      run out
   3. C.
      give off heat
   4. D.
      get weak
5. 5.

   Which of the following is NOT TRUE according to the passage?

   1. A.
      We might see that many stars look larger than others with a telescope
   2. B.
      We might see that some stars that look white are really red and blue with a telescope
   3. C.
      We can see some objects in more and more detail with bigger and bigger telescopes
   4. D.
      The sun certainly seems to be getting old and weak