案例背景:一般而言,一堂完整的英语课往往由若干个环节构成,这一个个环节便是一个个教学层次,而“层次清晰”往往是对一节课的正面评价。但环节之间若缺失了有机的联系,相关语言知识便会显得“琐碎”,整堂课也会给人以“拼盘”之感,不利于帮助学生逐步形成相关的知识网络。若我 Case Background: In general, a complete English lesson is often composed of several links. Each link is a teaching level, and “levels of clarity” is often a positive evaluation of a class. However, if there is no organic link between the links, the relevant language knowledge will appear “trivial,” and the entire class will also give people a sense of “platter,” which is not conducive to helping students gradually form relevant knowledge networks. If I