摘要:9.( )- ? -Seven thirty. A.When time do classes begin B.What time do classes begins C.What's day is it today D.How many hours are there in a day

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Now satellites are helping to forecast the weather. They are in space, and they can reach any part of the world. The satellites take pictures of the atmosphere(大气), because this is where the weather forms. They send these pictures to the weather stations. So meteorologists(气象学家)can see the weather of any part of the world. From the pictures, the scientists can often say how the weather will change.
  Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures, the meteorologists compare them with earlier ones. Perhaps they may find that the clouds have changed during the last few hours. This may mean that the weather on the ground may soon change, too. In their next weather forecast, the meteorologists can say this.
So the weather satellites are a great help to the meteorologists. Before satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for three or five days. Soon, perhaps, they may be able to forecast the weather for a week or more ahead(提前).
【小题1】Satellites travel ___________.

A.in spaceB.in the atmosphere
C.above the groundD.above space
【小题2】 Why do we use the weather satellites to take pictures of the atmosphere?
Because ________.
A.the weather satellites can do it easilyB.clouds form there
C.the weather forms thereD.the pictures can forecast the weather
【小题3】Meteorologists forecast the weather ________.
A.when they have received satellite pictures
B.after they have compared new satellite pictures with earlier ones
C.before they received satellite pictures
D.during they study satellite pictures
【小题4】Maybe we’ll soon be able to forecast the weather for ________.
A.one dayB.two days
C.five daysD.seven days or even longer
【小题5】The main idea of this passage is that satellites are now used in ______.
A.taking pictures of the atmosphere
B.receiving pictures of the atmosphere
C.doing other work in many ways
D.weather forecasting

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When we look at the moon through a telescope(望远镜), we can see lines and circles(圆形物). People used to(过去常常) think that this was the moon’s face and that there was a man in the moon! This is not true. There is no man in the moon.

  What do we know about the moon? First of all, the moon is much smaller than the earth. Days and nights on the moon are very long. One day on the moon is as long as two weeks on the earth. One night is also as long as two weeks on the earth. In the daytime the moon is very hot and at night is very cold.

1.On the moon ____________.

      A. there is a man             B. there is a woman 

C. there are a lot of people     D. there is no man

2.Now we know _____________________.

      A. some facts about the moon  B. nothing about the moon

      C. little about the moon   D. few facts about the moon

3.Which of the following is true?

      A. The moon is bigger than the earth. 

B. The earth is much bigger than the moon.

      C. The moon is as big as the earth.  

D. The earth isn’t as big as the moon.  

4. One day on the moon is as long as ______________.

      A. seven days on the earth   B. fourteen days on the earth.

      C. 240 hours on the earth   D. two years on the earth

5.The moon is very hot _____________.

A. all the time           B. during the night 

C. in the daytime        D. at night and in the daytime

 

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