anonymous
One by one, two, three, four or five.
Six dollars, seven dollars, eight or nine dollars, Xiangshan is full of red leaves.
One maple leaf after another, with the action of the wind, changed from two to three, four, five, six, seven, eight and nine, which increased in turn. Finally, the maple leaves in Xiangshan were all over the ground and dyed the sky red.
This poem comes from the first volume of the Chinese textbook for the first grade of primary school, one after another, with four sentences in full text. The number of red leaves is written in three sentences, which has a slow and distant feeling. It looks like a beautiful red maple leaf, but it is the author's worry.
The reason why maple leaves turn red:
1, the degree of maple leaf red is related to time, drought, pollution, especially nitrogen deficiency. The red maple leaves are actually the result of maple trees responding to natural pressure.
2. The red reaction actually acts as a sunscreen, allowing the maple leaves to stay on the tree for a longer time, thus allowing the tree to absorb more nutrients. It is found that the pressure of nutrition, especially the lack of nitrogen, makes the maple leaves turn red earlier and more thoroughly.