Principles intended to make teachers aware of reasonable spacing to spacing is essential for the students to understand texts, teachers must create some space to allow students to understand the dialectical movement between familiar and unfamiliar. 间距化原则意在让教师意识到合理的间距是学生理解文本的必要条件,教师要创设某种空间使得学生的理解能在熟悉和不熟悉之间进行辩证的运动。