9．
阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
There
are ways of knowing about the weather. One important way is to study the clouds.
We
can see different kinds of clouds and watch them for signs of changing weather.
To forecast the weather, we should look for three things about clouds: 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 going to be. When the thick clouds get bigger
early in the day, it will rain. When a dark cloud appears, a storm is coming.
Colours
in the sky tell us about the weather too. For example, a golden ring around the
Moon also tells us that a storm is on the way.
The
rainbow also has a message (信息). When the Sun is in the east and a rainbow is in the west, the
rain may be coming its way. When the Sun is in the west and the rainbow is in
the east, the rain will be moving away from us.
