一忌以问代讲、一问到底。提问应适量、适度。频繁、持续的提问，易引起学生思维素孔，让学生疲于奔命，降低提问效果。二忌过白过露、简单肤浅。提问过白过露，学生不假思索、唾手可得，会降低学生对问题的兴趣与探究的欲望。而对重点、难点、疑惑点作简单化的提问，又会使学 A bogey to ask questions, one after another in the end. Questions should be appropriate and moderate. Frequent and continuous questioning can easily lead students to thinking holes and make students struggling to reduce their questions. Two bogey over-exposed, simple superficial. The question is overblown, students are not thinking about it, and are at their fingertips, which will reduce their interest in the problem and their desire to explore. And simplistic questions on key points, difficulties, and doubt points will make it easier to learn