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根吸收水分主要靠渗透作用。渗透作用的原理是“植物对水分的吸收和利用”这一节的重点、难点。利用实验来突破这个难点无疑是一个很好的途径。课本上介绍的
The root absorbs water mainly by osmosis. The principle of osmosis is “the absorption and utilization of water by plants”, which is the key point and difficulty of this section. Using experiments to break through this difficult point is undoubtedly a good way. Textbook introduced