预习,是历来为富有教学经验的教师所重视的教学手段之一。在强调尽一切可能发展学生智力,培养学生创造精神的今天,它更为广大教师所普遍采用。预习,决不是简单地将学习任务交给学生在课外去完成,并且美其名曰:“保证教师能有时间精讲多练”。过多地增加预习的内容,将会加重学生的负担,影响学生德智体全面发展;过高地提高对预习的难度,则又可能会挫伤学生学习积极性,使学生不是 Pre-learning is one of the teaching methods that have always been valued by teachers with rich teaching experience. In emphasizing that everything is possible to develop students’ intelligence and cultivate students’ creative spirit, it is more widely adopted by teachers. Prep, not simply to the task of learning to the students to complete outside class, and its name: “to ensure that teachers can have time to talk more practice ”. Excessively increasing the preparatory content will increase the burden on students, affect the overall development of students’ intelligence and intelligence; overly increase the difficulty of preparatory studies, it may also dampen students’ motivation for learning, so that students are not