Now satellites are helping to forecast（預報）the weather.  They are in space, and they can reach any part of the world.  The satellites take pictures of the atmosphere（大氣）, because this is where the weather forms（形成）.  They send these pictures to the weather stations.  So meteorologists（氣象學家）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（比較）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）.
小題1:Satellites travel _____________.
A．in spaceB．in the atmosphereC．a(chǎn)bove the groundD．a(chǎn)bove space
小題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
小題3:Meteorologists forecast the weather __________.
A．when they have received satellite pictures
B．a(chǎn)fter they have compared new satellite pictures with earlier ones
C．before they received satellite pictures
D．during they study satellite pictures
小題4:Maybe we’ll soon be able to forecast the weather for ________.
A．one dayB．two daysC．five daysD．seven days or even longer
小題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

小題1:A
小題2:C
小題3:B
小題4:D
小題5:D

試題分析：本文主要講述了現(xiàn)在利用氣象衛(wèi)星進行天氣預報的方法，以及利用氣象衛(wèi)星進行天氣預報的意義及應用前景。
小題1:細節(jié)理解題。根據(jù)第一段第二句They are in space可知衛(wèi)星是在太空中的，所以本題選A 。
小題2:細節(jié)理解題。通過文章第三句The satellites take pictures of the atmosphere（大氣）, because this is where the weather forms. 可知天氣形成于大氣層，所以本題選C 。
小題3:細節(jié)理解題。通過文章第二段第二句When they receive new pictures, the meteorologists compare them with earlier ones. 可知氣象學家在比較之后才報天氣。所以本題選B 。
小題4:細節(jié)題理解題。根據(jù)短文最后一段Soon, perhaps, they may be able to forecast the weather for a week or more ahead（提前）. 描述，可知很快我們就能提前預報七天甚至更長時間的天氣了。故選D.
小題5:主旨大意題。通過閱讀可知本文主要講了衛(wèi)星通過拍照來預測天氣預報，所以本題選D 。
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