1　本单元的重难点分析重点 :向量的概念 ;向量的几何表示和坐标表示 ;向量的线性运算 ;平面向量基本定理 ;平面向量的数量积 ;平面内两点间的距离公式 ;线段的定比分点和中点坐标公式 ;平移公式 .难点 :对向量的概念 ,向量的运算的意义及运算性质 ,平面向量基本定理的理解和运 1 The emphasis of this unit focuses on analysis: the concept of vectors; the geometric representation and coordinate representation of vectors; the linear operation of vectors; the fundamental theorem of plane vectors; the quantity product of plane vectors; the distance formula between two points in a plane; Point and midpoint coordinate formulas; translation formulas. Difficulties: The concept of vectors, the meaning of vector operations, and the nature of operations, the understanding and operation of the fundamental theorems of plane vectors.