达尔文的《〈物种起源〉导言》现收入试验本高中语文课本第二册，大概由于是新课文吧，它成了公开课的热门选文，笔者近两年中已听了三次。因为本单元的学习重点是“整体把握，筛选信息”，执教者如何引导学生捕捉和筛选信息自然就成为课堂的重头戏。对文章整体结构的分析并无 Darwin’s “Introduction to the Origin of Species” is now included in the second volume of the Senior High School Chinese Textbook, probably because it is a new text. It has become a popular selection for open classes. I have heard three times in the past two years. Because the focus of this unit is “total grasp, screening information,” how the instructor guides students to capture and filter information naturally becomes the highlight of the classroom. There is no analysis of the overall structure of the article