预习是学生课前的一种自主认知活动,是自觉运用所学知识和能力对课文进行预先了解、思考、质疑的求知过程。小学生养成预习的良好习惯,既有利于提高学习效率和自学能力,又有利于教师根据其预习情况,恰当调整教学方案,优化教学效果。叶圣陶先生曾经说过:“教是为了不教,语文教学的成功与否, Preview is a kind of autonomous cognition activity before class, which is the process of seeking knowledge, thinking and questioning of the text by using the knowledge and ability consciously. Pupils to develop good habits of preparation, both conducive to improving learning efficiency and self-learning ability, but also conducive to teachers according to their preview of the situation, the appropriate adjustment of teaching programs to optimize the teaching effectiveness. Mr. Ye Shengtao once said: ”Teaching is to not teach, the success of Chinese teaching or not,