The spring rain beads dripping from the buds are more charming than the tears of girls. There always seems to be a transparent silk curtain hanging in mid-air, which affects the color prism of the sun. At this time, the whole earth is beautiful, and the grass seems to be turning like a resurrected earthworm, making a rustling sound that can only be heard in spring. Breathing becomes carefree, and there are countless sweet fruits in the air, tempting the nose and lips.

Characteristics of summer rain: warm and rough.

Xia Yu also has a summer character, warm and rough. There are several dark clouds floating in the sky, and sometimes it thunders without warning. When you haven't had time to think, bean-like raindrops come. But it's not terrible to rain at this time, because your pores are so hot that you open your mouth and look forward to the cool dew. An umbrella and a hat can certainly keep you clean.

It's better to take a bath with a bald head, but my wet hair, forehead and eyelashes are dripping, blocking my eyes and my ears are itchy. At this time, you will like everything better.

Characteristics of autumn rain: dignified and thoughtful

When the field is covered with golden rain, it seems as dignified and thoughtful as a married mother who gave birth to a child. At this time, it doesn't rain much. The fields are almost always golden sunshine. Perhaps people have forgotten the rain.

Mature crops are waiting to be harvested, golden seeds need to be dried, and even red mountain fruits hope to be sweet in the end. Suddenly, one night, there was a sound on the window pane. It was rain, a quiet, nostalgic and emotional autumn rain! It was dark, but it was raining. The fields were quiet, but it rained cats and dogs. Suddenly, you will feel alienated.

Characteristics of winter rain: natural and calm.

Perhaps, when winter comes, people will hate the rain! But at this time, the rain has made up, and it often turns into beautiful snowflakes and floats to the world. But in the south, rain still visits the earth occasionally, only becoming more stingy. It doesn't pour, it doesn't flow like silk, it doesn't drip, it shows a kind of nature and calm. Under the gray sky in winter, the rain becomes transparent and even dry, almost less colorful than in spring, summer and autumn. Four seasons refer to four seasons that appear alternately in a year, namely spring, summer, autumn and winter, and each season lasts for three months.

All the year round is formed because the earth revolves around the sun. Because of the existence of the ecliptic angle, the direct point of the sun moves back and forth between the north and south latitudes of the earth, which changes every year, resulting in the seasonal changes of the height of the sun at noon, the length of day and night, and the seasonal changes of the solar energy obtained in various places, thus forming the replacement of the four seasons. ?

In ancient times, according to bucket handle's direction, the four seasons alternated and the Big Dipper rotated circularly, which was closely related to the change of seasons.

At present, the division of seasons is usually determined by the position of the earth in the orbit around the sun. The rotation of the four seasons reflects the changing laws of phenology and climate such as spring, long summer, autumn harvest and winter storage. The southern region of China (low latitude region) is rich in precipitation, abundant in sunshine, high in humidity, small in temperature difference between winter and summer, and the climatic factors such as sunshine and precipitation change obviously with the seasons.

The northern region (mid-latitude region) is characterized by less precipitation, dryness, and large temperature difference between winter and summer. When the season changes, the obvious change of climate factors is temperature.