同学们进入实验室,刚刚坐定,一个声音便惊叫起来:“老师,他用舌头舔这红水了!”顿时,全班同学不约而同地把目光投向坐在第二组的一个男同学,同时发出一声惊叫,随即,又发出一阵哄笑。本来,这节科学课是研究植物“茎的秘密”,为了让学生直观地观察茎输送水分的作用,我事先在实验 The students entered the lab, just sit down, a voice exclaimed: “Teacher, he licked the red water with his tongue!” Suddenly, the class students invariably turn to sitting in the second group of a male classmate, At the same time issued a cry, then, and issued a burst of laughter. Originally, this section of science is to study the plant “stem secret”, in order for students to visually observe the role of stem delivery of water, I prior experiments