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由于工作的关系,我经常到学校去听生物课。有一次,一位教师在讲初中生物《植物的构造和功能》一节中“根的功能”时,先让学生回忆学校水塘旁边一棵大樟树的形态,然后提问:这棵树的树冠有什么特征?由于学生每天都从水塘旁边经过,他们能很快回答:靠近水边一侧的枝条特别繁茂。教师又问:为什么树冠近水一侧的枝叶特别繁茂?学生们想,这可
Due to my work, I often go to school to take biology classes. Once, when a teacher was talking about the “function of the root” in the “Structure and Function of Plants” section of junior high school biology, he first asked the students to recall the form of a large camphor tree beside the school pond and then asked: What are the characteristics of the canopy? As students pass by the pond every day, they can quickly answer: The branches near the water's edge are particularly lush. The teacher asked again why the branches and leaves near the water crown are particularly lush, students think this may be