“活书是活的知识之宝库。花草是活书,树木是活书,飞禽走兽微生物是活书。山川湖海,风云雨雾,天体运行都是活书。活的人、活的问题、活的文化、活的武功、活的世界、活的宇宙、活的变化,都是活的知识的宝库,都是活的书”。(陶行知)陶行知先生的话告诉我们,语文的外延就等于生活 “Living books are the treasures of living knowledge. Flowers and plants are living books, trees are living books, birds and beasts are living organisms. Mountains, lakes, seas, storms, and celestial bodies are all living books. Living people, living problems, live The culture, the martial arts, the living world, the living universe, and the living changes are all treasures of living knowledge and are living books." (Tao Xingzhi) Mr. Tao Xingzhi’s words tell us that the extension of language is equal to life.