初中物理教科书中的知识,有很多不同于或滞后于实际应用领域,在教科书不变的情况下,如能补充些课外知识做为课内知识的拓展,可以让学生所学到的知识与实际联系更紧密,并使其深刻认识到学无止境的道理,同时也有利于学生创新能力的培养.现以人民教育出版社出版的义务教育课程标准实验教科书《物理》为例,介绍几个扩展知识. Many of the knowledge in junior high school physics textbooks differ from or lag behind in practical applications. If the textbooks remain unchanged, if they can supplement extra-curricular knowledge as an extension of knowledge in-class, they can make the knowledge and reality they have learned Contact with more closely, and make it a profound understanding of learning endless truth, but also conducive to the cultivation of students’ innovative abilities.Now is the People’s Education Publishing House published compulsory education curriculum standard textbook “Physics” as an example, introduce a few extensions know how.