Look at the pictures to understand the weather, and compare the numbers and quote data, and classify them into different sentences for interpretation.

1. For example, clouds are like signs of weather.

2. Interpretation: On sunny days, we will also encounter a cumulus cloud. This is a oblate cloud, arranged in a balanced way, with a blue sky in the middle, which looks like a snow-white sheep on the grassland from a distance.

Cumulonimbus clouds grow higher and higher, the cloud bottom turns black, and Yunfeng gradually blurs. Soon, the whole Yunshan collapsed and dark clouds filled the sky. In an instant, thunder rumbles and thunders, and it will crash underground, sometimes bringing hail or tornadoes.

3. Numbers: There is also a kind of white clouds like cotton balls, called cumulus clouds, which are often in the sky about two kilometers.

4. Classification: We can also infer the weather according to the brilliance on the clouds. The brilliant phenomena are divided into four categories: halo, glow, rainbow and chardonnay.

5. Contrast: Central China will grow from small to large, and the weather will tend to be fine. The central region of China is getting smaller from big to small, and the weather may turn rainy.

6. Quote: Therefore, there is a proverb "Do nothing at sunrise and travel thousands of miles at sunset".