[教材简析] 本文是著名作家袁鹰写的一篇抒情散文。作者摄取了旅途上的一个短镜头,从火车车窗中见到的白杨落笔,通过爸爸和两个孩子的谈话,赞颂大戈壁的白杨树的品格,抒发了自己扎根边疆的志向,并以此教育孩子在边疆茁壮成长。这是一篇讲读课文,引导学生理解白杨的本质特性和爸爸的心愿是本课教 [An analysis of teaching materials] This article is a lyrical prose written by the famous writer Yuan Ying. The author took a short shot on the journey. The poplar seen from the window of the train dropped his pen and talked with his father and two children. He praised the character of the poplar tree in Gobibi, and expressed his ambition to take root in the frontier. This educated child thrived in the frontier. This is a lecture reading lesson that guides students to understand the nature of poplars and their wishes.