1　知识网络1)现实生活中的直线与平面的位置关系需要将文字语言转化为图形语言和符号语言 ,并能用立体几何中所学的抽象的直线与平面的位置关系 (平行、垂直、所成角、距离 )加以判断 .2 )简单几何体应着重认识与掌握棱柱、棱锥 ,会计算简单几何体中的表面积与体积 ,尤其是“? 1 Knowledge Network 1) The positional relationship between straight lines and planes in real life requires the conversion of literal languages ​​into graphic languages ​​and symbolic languages, and can use the positional relationships between abstract lines and planes learned in solid geometry (parallel, vertical, and horizontal Angle, distance) to judge. 2) simple geometry should focus on understanding and mastering prisms, pyramids, will calculate the surface area and volume in simple geometry, especially "?