初中物理教材是教师教、学生学的重要依据,是初中物理知识的主要载体,因此在遣词造句上必须准确严谨,能够清晰明确地表述相关的物理知识.在教材使用中,发现在案例描述、概念定义和理论体系等方面的描述上还存在一些值得优化的地方,本文以人教版和北师大版中关于“力”的相关内容为例,对其中表述不同的地方进行比较,说明两版本中各自存在的优势和不足,并提出一些相应的改进意见. Junior high school physics textbook is an important basis for teachers to teach, students learn, is the main carrier of junior high school physics knowledge, so the words and sentences must be accurate and rigorous, able to articulate the relevant physical knowledge.In the use of textbooks, found in the case description, Concept definition and theoretical system, there are still some places that are worthy of optimization. In this paper, the relevant content of “force” in PEP and BNU is taken as an example to compare the different places in the expression, Describe the two versions of their respective advantages and disadvantages, and put forward some corresponding improvements.