精讲是提高课堂教学效益的一个有效途径,而目前课堂教学中妨碍效益提高重要原因之一恰恰就是老师或者想把大量的知识一口气灌输给学生,或者一个问题担心学生不掌握反复强调,或者语言重复拖沓,占用的时间多,学生利用的时间少,学习效果不佳。因此,通过“精讲点拔”达到提高教学效益是个值得思考的问题。 One of the most important reasons for hindering the improvement of efficiency in class teaching at present is precisely that the teacher either wants to instill a large amount of knowledge and breath to the students in one breath or one question is worried that the students do not grasp repeatedly or Repeated language procrastination, taking up more time, less time spent by students, learning ineffective. Therefore, it is a worthwhile question to improve the teaching effectiveness through “exaggerating and pointing out ”.