Special and comprehensive learning. (1) ① What kind of phenological laws are contained in the poem "The clouds are deep in the pines and it is cold in summer"? Please explain. _______________

(1)? ① Affected by altitude, the higher the altitude, the lower the temperature. Even though it is summer, the pine forests in the mountains are still very cold.

②Example 1: The beauty of April in the world is gone, and the peach blossoms in the mountain temple are beginning to bloom. Example 2: It’s snowing in the mountains in May, but it’s cold without flowers.

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