一、问题的提出笔者作为一名工作二十多年,经历课改前后的一线高中化学教师,近几年越来越感觉现在的高中新生难以适应高中化学的学习,甚至有些在初中是尖子生,进入高中后成绩一落千丈,丧失学习信心,厌倦学习,给很多一线教师的顺利教学带来了一定困难。询问学生,普遍认为高中化学知识偏难、学习容量相对较大、叙述简明扼要、知识理解接受难度加大、初高中知识不衔接等。其实,初高中化学衔接问题存在由来已久,只是在基础教育进入实验性 First, the problem raised I as a work for more than 20 years, before and after the curriculum reform experienced front-line high school chemistry teacher, in recent years more and more feel nowadays high school freshmen is difficult to adapt to high school chemistry, and even some are junior high school students After entering high school, their grades have plummeted. They have lost their confidence in learning and are tired of studying. This has brought difficulties to the smooth teaching of many front-line teachers. Asking students is generally considered that high school chemical knowledge is difficult, the learning capacity is relatively large, the narrative is concise, the knowledge acceptance is more difficult to accept, and the high school knowledge does not converge. In fact, there is a long history of high school chemistry convergence, but only after basic education has entered into experimental