逐本溯源通过研析近几年高考化学试题,不难发现高考化学试题的难度都不是很大,有些是教材中基础知识和基本原理的灵活应用,有些是源自教材上的习题直接改编。目前部分教师和考生在高三复习过程中将教材束之高阁,仅仅依据复习材料做高强度的训练和练习,这是一种误区。在历年的高考评卷过程中,往往会出现一种现象——越是简单的试题越容易失分,这就是脱离教材复 It is not difficult to find that the difficulty of entrance exams is not great. Some are the flexible application of the basic knowledge and basic principles in the textbooks, and some are directly adapted from the exercises on the textbooks. At present, some teachers and candidates put the teaching materials in a hurdle during the third year of high school, which is a misunderstanding, based on the intensive training and practice of reviewing materials. In the calendar year college entrance examination marking process, there will often be a phenomenon - the more simple questions easier to lose points, which is from the complex