初中语文第三册第四、五两个单元的六篇说明文,在说明事物特点的过程中,都穿插使用了描写和议论的方法,从课文编选者设计的七道“思考和练习”题来看,辨析说明中的描写和议论成分,理解说明中的描写和议论的作用、特点和基本方法,也是这两个重点单元的教学目的任务之一。我是怎样进行说明中的描写和议论成分的教学的呢? The six explanatory texts of the fourth, fifth and twelfth units of the third volume of the junior high school textbook are interspersed with the description and discussion method in explaining the characteristics of things. From the seven “thinking and practice” questions designed by the text editor It is also one of the mission tasks of these two key units to analyze the description and argument in the explanation, to understand the role, characteristics and basic methods of description and argument in the explanation. How do I teach the description and argument in the explanation?