“北美概述”主要讲授北美气候及影响因素、居民组成等内容。其中气候是本节重点，气候成因是本节难点，插图多（共６幅）是该课时教材在结构上的一大特点。为了更好地突出重点、讲好难点，培养学生的读图能力，笔者采用了“读、问、议、答、讲、练”六步式教学法。一、“... The North American Overview mainly teaches about North American climate and influencing factors, residents’ composition and so on. Among them, the climate is the focus of this section, and the climate causes are the difficulties in this section. There are many illustrations (a total of six) which is a major feature of the teaching materials in the lesson. In order to better highlight the key points, talk about the difficulties, and cultivate students’ ability to read pictures, the author adopted the “read, ask, discuss, answer, speak, practice” six-step teaching method. one,"...