随着教育观念的转变,大家都知道在课上要充分调动学生的积极性,利用多种方式吸引学生,激发兴趣,让学生主动探究,参与整个学习过程,使学生真正成为学习的主人。然而,不可回避的是,我们常常会碰到这样的情况:在某一堂课中,本来学生学习兴致盎然,劲头十足,个个沉浸在探究当中,课堂气氛也很热烈,但当老师提出一 With the change of educational concept, we all know that in class we should fully mobilize the enthusiasm of students, use a variety of ways to attract students, stimulate their interests and let students take the initiative to explore and participate in the learning process so that students can truly become masters of learning. However, it is unavoidable that we often encounter such a situation: in a certain class, the original students are excited and energetic, all immersed in the inquiry, the classroom atmosphere is also very warm, but when the teacher proposed a