对于高中生来说,仅仅课本并不能满足学生提高成绩的要求.为了应对激烈的高考竞争,每一个高中生尤其是高三的同学除了在校内完成大量的课内习题外,还需要自己准备复习资料进行习题练习.化学属于理工科知识体系,硬性记忆的知识较少,教学概念、公式和实验原理需要通过大量的习题进行巩固.在高中开设的晚上课程中,几乎全部都是自习课,高一和高二的化学课近一半的时间也是习题作业.题海战术容易消磨学生学习的积极性,使学生产生厌倦心理.如何提高化学习题课堂的效率,教师应通过对当前习题课现状进行分析,针对其存 For high school students, only the textbook does not meet the requirements of students to improve their performance.In order to cope with the fierce competition for college entrance examination, every high school students, especially the third year students in addition to completing a large number of class problems in school, but also need to prepare their own review materials Exercise Exercises Chemistry belongs to the science and engineering knowledge system, and there is less knowledge of hard memory. Teaching concepts, formulas and experimental principles need to be consolidated through a large number of exercises. Almost all of the evening classes offered in high school are self-study classes, How to improve the efficiency of chemical exercises classroom, teachers should analyze the current status of the exercise class, according to their deposit