“类比”和“比较”是一种逻辑推理的思维方法,是抽象思维的两种基本形式,是两种相似但又不同的思维方法。在中学化学中如果没有“类比”的思维方法,将难以解决诸多的化学问题;没有“比较”的思维方法,将难以区分繁杂、相似的化学知识、化学问题,更谈不到正确的理解和应用. “Analogue” and “comparison” are logical thinking methods and they are two basic forms of abstract thinking. They are two similar but different ways of thinking. In the middle school chemistry, if there is no “analogy” thinking method, it will be difficult to solve many chemical problems; without “comparative” thinking methods, it will be difficult to distinguish between complicated and similar chemical knowledge and chemical problems, and even less understanding and understanding. application.