这时外面的雨已停了,可天还是阴沉沉的,但实验室里的气氛却异常地热烈。同学们围着自己的“战利品”,热烈地讨论着,争辩着,那亲身实践的乐趣,真是从未有过的……清脆的上课铃声荡漾在宁静的校园。高二(4)班教室走进一位中年教师。他高高的个子,穿一套银灰色的中山装,显得精干潇洒,眉宇间透着一股刚毅之气。他姓李。这节语文课教达尔文的《〈物种起源〉导言》。“同学们,十九世纪自然科学有三大发现:进化论、能的转化和守恒定律、细胞学说。而达尔文就是进化论的创立者。”教室里,同学们都在静心听讲。李老师上课幽默风 At this time, the rain outside had stopped, but it was still gloomy, but the atmosphere in the laboratory was unusually warm. Students surrounded their own “trophy” and enthusiastically discussed, arguing, that the fun of personal practice is really unprecedented... The crisp school bell rang on a quiet campus. Senior 2 (4) classrooms entered a middle-aged teacher. His tall man, dressed in a silver-gray tunic, looked lean and unrestrained, with a sense of fortitude. His surname is Li. This language lesson teaches Darwin’s Introduction to the Origin of Species. “Classmates, there were three major discoveries in the natural sciences of the nineteenth century: Evolutionism, the transformation of energy and the law of conservation, and the theory of cytology. Darwin was the founder of evolutionism.” In the classroom, the students were listening calmly. Teacher Li has a humorous lesson