The original text is to know the weather from the clouds. The answers to these five questions.

1: The first paragraph is the general sentence of the second, third and fourth paragraphs, and its function is to always play the following role.

2. The cirrus, cirrocumulus, Cumulus and Hypercumulus are introduced. * * * The same is a symbol of sunny days.

3. Introduce cirrostratus, High-altitude Cloud and nimbostratus respectively. Their similarities are that they are all symbols of rainy weather.

4. Rhetorical devices such as parallelism and metaphor are used to write the cirrus vividly, with myriad gestures and changes.

From the second sentence of the first paragraph, some look like feathers. . . Like a lion, like a galloping horse . . This paper vividly describes the impermanence and variety of clouds in the sky by using rhetorical devices and metaphor methods.