综观整个初中物理教材,我们往往会发现有些问题不易理解、有些问题不易辨别……。如果我们不将这些问题理解、辨别,那么学生学习就不会轻松,也就不会真正地理解物理学的本质,从而会使学生对学习物理产生恐惧,形成厌学的心理。所以我们应该帮助学生归纳分析这些较难理解、较难区别 Looking at the entire junior high school physics teaching materials, we often find that some problems are not easy to understand and some are not easy to distinguish. If we do not understand and distinguish these problems, then students will not easily study, it will not really understand the nature of physics, which will make students fear of learning physics, the formation of disgusted psychology. Therefore, we should help students to analyze these more difficult to understand, more difficult to distinguish