一、问题的提出化学课堂提问是优化课堂教学的必要手段之一,也是教师教学艺术的重要组成部分。恰到好处的提问不但可以活跃课堂气氛,激发学生学习兴趣,了解学生掌握知识情况,而且可以开启学生心灵,诱发学生思考,开发学生智能,调节学生思维节 First, the question raised Chemistry classroom questioning is one of the necessary means to optimize classroom teaching, but also an important part of the teacher teaching art. Just right questions not only can stimulate the classroom atmosphere, stimulate students interest in learning to understand the students grasp the knowledge, and can open the students mind, to induce students to think, develop student intelligence, adjust students thinking section