鼓励学生质疑问难著名的教育家第多惠斯说：“教学的艺术不在于传授的本领，而在于激励、唤醒、鼓舞。”但在教学实践中，仍有不少教师跳不出教师讲、学生听的传统模式，学生没有表达自己观点的机会。为此，笔者着重在课堂结构改革上下功夫，采用“一读、二疑、三议、四结... “The art of teaching does not lie in the ability to teach, but in the encouragement, awakening, and encouragement.” But in the teaching practice, there are still many teachers who can’t jump out of the lectures and students. In the traditional model of listening, students did not have the opportunity to express their opinions. For this reason, the author focuses on the reform of the classroom structure and adopts "first reading, two doubts, three discussions, four conclusions...