人教版专题08 阅读理解科普类-备战2020年中考语法专项突破+题型特训.doc

阅读理解特训专题3 科普类
（一）
阅读短文，掌握其大意，从每题所给的 A、B、C、D 四个选项中，选出最佳选项。
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）.
1. Satellites travel _____________.
A. in 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
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
4. Maybe we’ll soon be able to forecast the weather for ________.
A. one day                B. two days
C. five days