经常听到来自老师或学生的抱怨——老师说“:现在的学生真不好教,你就是累死,把课讲出花来,他也不爱听!”学生说:“我们XX老师特没劲,成天绷着个脸,一点儿阳光都没有,真不愿意上他的课。” I often hear complaints from teachers or students - the teacher said: “Now the students are not good at teaching, you are exhausted and speak out of the class. He doesn’t like to listen!” “The students said: ” We The XX teacher was really boring. He had a wide face all day long, and there was no sunshine at all. He was not willing to attend his class."