七年级下学期的课本中与几何有关的章节是第七章和第十二章,分别是《平面图形的认识(二)》和《证明》.第七章大致可分为两部分:平行线和三角形.平行线的相关性质和定理是初中几何学习的基础,比如三角形的内角和定理就是依据平行线的相关性质推导出来的.因此可以认为,第七章里前面平行线的相关内容是为后面 The chapters related to geometry in the textbook for the seventh grade next semester are Chapters VII and XI. They are “Cognition of Planar Graphics (II)” and “Certification”. Chapter VII can be roughly divided into two parts: Parallel lines. The properties and theorems of the parallel lines are the basis of the geometry learning of the junior middle school. For example, the internal angles and the theorems of the triangles are derived from the correlation properties of the parallel lines. Therefore, it can be assumed that the relevant contents of the parallel lines in the previous chapter are Behind