摘要：D.“From the pictures.the scientists can often say how the weather will change. 是该小题答案的出处.
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阅读短文，选择正确答案。
Now satellites are helping to forecast (预报) 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
(形成). 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 (比较) 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).
of the world. The satellites take pictures of the atmosphere (大气), because this is where the weather forms
(形成). 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 (比较) 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).
1. Satellites travel _______.
[ ]
A. in space
B. in the atmosphere
C. above the ground
D. above space
B. in the atmosphere
C. above the ground
D. above space
2. Why do we use the weather satellites to take pictures of the atmosphere? Because _______.
[ ]
A. the weather satellites can do it easily
B. clouds form there
C. the weather forms there
D. the pictures can forecast the weather
B. clouds form there
C. the weather forms there
D. the pictures can forecast the weather
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
B. after they have compared new satellite pictures with earlier ones
C. before they received satellite pictures
D. during they study satellite pictures
4. Maybe we'll soon be able to forecast the weather for _______.
[ ]
A. one day
B. two days
C. five days
D. seven days or even longer
B. two days
C. five days
D. seven days or even longer
5. The main (主要的) 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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B. receiving pictures of the atmosphere
C. doing other work in many ways
D. weather forecasting
| 完形填空。先通读短文，掌握其大意，然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案，并将其标号填入题前括号内。 | ||||
| Now satellites are 1 to forecast (预报) the weather. They are in space, and they can 2 any part of the world. The satellites take pictures of the atmosphere (大气), 3 this is where the weather forms (形成). They send these 4 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 5 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 6 . Perhaps they may find that the clouds have changed during the last few hours. This may mean that the 7 on the ground may soon change, too. In their next weather forecast, the meteorologists can say this. So the weather satellites are a great 8 to the meteorologists. 9 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 10 forecast the weather for a week or more ahead (提前). | ||||
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