A short essay describing autumn in the second grade of primary school

The composition describing autumn in the second grade of primary school is as follows:

Autumn is here, autumn is here, and the fruit in the yard is ripe. Red apples and yellow pears. The golden rice also bent over with laughter, and the sorghum also blushed. The geese in the blue sky are flying south.

In the field, little vegetables are wearing green military uniforms. In the park, Aunt Maple Leaf took off her green coat and put on a red coat. Autumn wind blows, and maple leaves fall from trees like many beautiful butterflies. Ah, I love you in the golden autumn! Because you bring people the joy of harvest.

Autumn introduction:

Autumn is one of the four seasons. Traditionally, China takes "beginning of autumn" in the 24 solar terms as the starting point of autumn. Entering autumn means that rainfall and humidity tend to decrease or decrease, and everything in nature begins to mature from lush. At present, the four seasons are usually divided according to the average temperature of modern scholar Zhang Baokun.

Its index is that the average temperature is lower than 10℃ in winter, higher than 22℃ in summer and higher than 10~22℃ in spring or autumn. Autumn is a season of alternating hot and cold. Early autumn is still in the summer heat period, and the summer heat has not yet come out.

This is the hottest, wettest and sultry time of the year. After late autumn, it is sunny during the day, cool and dry at night, with large temperature difference between morning and evening, less rain and insufficient water. Therefore, autumn dryness has become the main feature of late autumn.

Overall characteristics:

Traditionally, China takes "beginning of autumn" in 24 solar terms as the starting point of autumn. The word "autumn" consists of the word "grain" and the word "fire", indicating the maturity of the five grains. After entering autumn, in nature, everything begins to mature from lush. Its climate began to change from rainy and humid in summer to dry and rainy in autumn.

The four seasons in China are often divided according to the change of temperature, using the "average temperature" of modern scholar Zhang Baokun. According to the weather average temperature method, there are two main criteria to judge autumn.

The average daily temperature for five consecutive days is between 10℃-22℃, which can be regarded as autumn and become a "short mark"; Second, the moving average temperature of five consecutive groups is lower than 22℃. A set of moving average temperatures refers to the average temperature of the day plus the average temperature of the previous four days divided by 5 to get the moving average temperature of five days, which is the sliding scale. Autumn divided by temperature means cool weather.