The weather has a lot to do with our life 。For one thing ,our crops depend on it。 They will suffer if it is too dry or too wet。 So men have long hoped to find a way to get control of it。
But their efforts have up to now produced little results。 Though it is true that no one can change the weather, nor can anybody completely control it, we have learned many things about it from experience and through study。
We have found that ccrtain signs appear when there is going to be and big change in the weather。 If v'e read the signs correctly, we can tell what the more important changes in the weather will be ,This way of telling what the weather will be like on the following day or two is called"weather forecast" People in all countries have for many years studied the weather and tried to make weather forecasts。
The following are some of their findings。 Sometimes distant objects such as hills and tall trees seem to be very clear and near 。This is a sign of much water vapour, which shows that rain will probably come。
When distant sounds, such as the noise from far-off trains, are heard very clear, then wet and stormy weather is on the way。 If you see a rainbow during rainy weather, this is a sign that it will clear up and become fine 。
Such rainbows always come in the evening 。However, if a rainbow appears in the morning, then you may take it that rainy weather will come 。
If the stars twinkle clearly at night then fair weather will probably continue。 And then many people feel in their bones the coming of wet weather 。
Their joints or their old wounds ache, which always tells them if it is going to rain。 Most of the above sayings have been made by people who have used their eyes and brains, and they have proved to be very useful in forecasting the weather。
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