教师除“传道、授业、解惑”之外,更主要的是在传授知识的同时开发学生的智力,培养学生的能力．在知识应用的教学中,既要进行技能性的转化,又要完成把知识转化为能力的任务,还要考虑适应学生的不同智力水平．所以,要精心设计训练题． In addition to “preaching, teaching, and puzzling,” teachers are more important in imparting knowledge while developing students’ intelligence and cultivating their abilities. In the teaching of knowledge application, it is necessary to carry out the transformation of skills, but also to complete the task of turning knowledge into ability, but also consider adapting to different levels of intelligence of students. Therefore, we must carefully design training questions.