I will take you into our second home, the campus. What's the scenery like on campus? Then please listen to me! When the little plane tree was born, Uncle Feng blew it from left to right, like a little girl's braid!
Many flowers are full of spring and shy of opening. They drive better than each other, as if fighting for who is the most beautiful, making our eyes blind. Swallows fly back from the south and chirp in the trees, as if whispering!
In summer, our flower protector, Lotus Leaf, protects the watery lotus princess like a loyal guardian. Princess Lotus stands proudly on the lotus leaf guard, Lotus, Lotus! You are the water fairy!
The cicada stopped in the tree kept calling: cicada cicada! It seems to say, "It's so hot! It's so hot! " On the playground, some students splashed water on Princess Lotus's territory, some were playing games, and some were sleeping under sprouting trees!
In autumn, the buttonwood trees turn yellow slowly, and the leaves fall one after another. There seems to be a golden carpet on the ground! Although the tree is dead, flowers are still blooming, such as chrysanthemums and osmanthus. Every time I pass by the garden, I feel very fragrant.
In winter, the plane trees are all gone, like a bald uncle! On the playground, snowflakes are flying, and they get stuck when you step on them! Although most of the flowers have withered, plum blossoms still bring people fragrant fragrance. She is really like a general, protecting our motherland. Look! Our campus is beautiful!
Causes of seasonal changes
The change of seasons is caused by the revolution of the earth around the sun. Due to 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 leads to the change of the height of the sun at noon and the length of day and night, thus resulting in seasonal changes.
Traditionally, in China, the four seasons take the "four solar terms" as the beginning of spring, summer, autumn and winter. Zhang Baokun, a modern scholar, put forward a new seasonal standard, that is, the average temperature in winter is lower than 10℃ and the average temperature in summer is higher than 22℃. The average temperature in spring or autumn is 10-22℃.
Seasonal changes not only affect the growth of plants and the migration of animals, but also affect human life and activities. For example, spring is the season when everything recovers, summer is the hot season, autumn is the harvest season, and winter is the cold season.