从生态学的角度来看,大学英语教学是由多个生态因子组成的生态系统,只有让生态因子在正确的位置上发挥作用,大学英语教学生态系统才能保持平衡。而从现实的角度来看,当前大学英语教学生态系统具有明显失衡的特征,这就需要从构建大学英语教学生态优化模式、重视种群间的协同进化、注重教师生态位建设三个方面优化大学英语教学路径。 From an ecological point of view, college English teaching is an ecosystem composed of multiple ecological factors. Only by making ecological factors play a role in the right place, the college English teaching ecosystem can maintain a balance. From a realistic point of view, the current college English teaching ecosystem has the characteristics of obvious imbalance, which requires optimizing College English from the three aspects of constructing the ecological optimization model of college English teaching, emphasizing the co-evolution between populations and focusing on the teachers’ niche construction Teaching path.