同分异构现象是中学化学四同之一,是有机化学的重要基础知识,贯穿于有机化学的全部,是历年高考的重要测试点,它综合性强,范围广,不但考查对同分异构体概念的理解、有机物结构等知识的掌握,还要考查思维能力,而且同分异构体的书写、列举问题能很自然联系最新科技成果.对于这种问题学生往往不知从何下手。本文将通过具体试题的解析,分类介绍方法. Isomerism is one of the four middle school chemistry, is an important basic knowledge of organic chemistry, runs through all organic chemistry, is an important test point over the years college entrance examination, it is comprehensive, a wide range of not only examine the same The understanding of the concept of structure, the structure of organic matter and other knowledge mastery, but also to examine the thinking ability, but also the writing of isomers, enumerate the problem can be very natural contact with the latest scientific and technological achievements for which students often do not know where to start. This article will pass the analysis of specific questions, classification methods introduced.