备课是教师完成教学任务应具备的的一项基本功,是教师实施新课程理念的主要手段。要完成教学任务,保证教学质量,发挥课堂时间的效益,就要上好课。上好课的前提和关键是备好课,备课的质量高 Preparation lesson is a basic skill that teachers should have when completing the teaching task, which is the main method for teachers to implement the new curriculum idea. To complete the teaching tasks, to ensure teaching quality, to play the benefits of class time, we must make a good lesson. A good lesson on the premise and the key is to prepare a good lesson, preparation of high quality