做练习是学生巩固知识 ,形成技能、技巧的重要途径 ,对于培养学生独立工作能力与习惯 ,发展学生的智力与创造才能 ,有着重大意义。当然只有练习得法、扎实 ,才能达到以上目的。本文就作者如何在高中生物课堂上指导学生进行单元练习的做法简介如下 ,与大家商讨。1 广泛提问　一 Doing exercises is an important way for students to consolidate their knowledge and form skills and skills. It is of great significance for students to develop their independent work abilities and habits and develop their intellectual and creative talents. Of course, this can only be achieved if there is a good practice and a solid foundation. This article describes how the author can instruct students to practice unit exercises in the high school biology class as follows. 1 Extensive questioning