0 1 Let's prepare a pen and paper and draw the edge of the hat first.

Then draw an arc and draw the top of the hat. ?

Then draw the face, eyes and nose of the snowman, and then draw the snowman scarf.

The commonly used methods of season division mainly include "solar terms method" and "temperature method". The traditional division of the four seasons in China is based on the "four stands" among the 24 solar terms as the beginning of the four seasons.

The change of the four seasons is a continuous process, and it is also a process of yin and yang transformation, and quantitative change produces qualitative change. In this gradual process, beginning of spring, Changxia, beginning of autumn and beginning of winter, also known as "Sili", are the opening of the season.

Traditionally, winter begins at the beginning of winter and ends in the next beginning of spring. Modern scholar Zhang Baokun put forward a new seasonal standard-temperature method.

That is to say, the average temperature (the average temperature for five consecutive days) steadily drops below 10℃ at the beginning of winter, rises above 22℃ at the beginning of summer, rises above 10℃ at the beginning of spring, and falls below 22℃ at the beginning of autumn.

At present, the seasonal method we use in climatology is an improved version of Zhang Baokun's temperature method, which changes the "average temperature for five consecutive days" to "average temperature for five sliding days" to enhance the accuracy of seasonal division; However, no matter how scientifically defined, people always think that "beginning of winter" is the beginning of winter.