一、抓住重点词“高大挺秀”，形成对白杨树的鲜明印象。课文以介绍荒凉的大戈壁开头，然后运用一个设问引出白杨来。课文的标题是“白杨”，我让学生读出有关白杨的句子，从中提出“高大挺秀”这个词语，然后通过几个步骤让学生深入、具体地理解它。第一，解释词语。“高... First, seize the key word “tall and elegant”, forming a clear impression of poplar. The text begins with a brief introduction to the desolate Great Gobi and uses a set of questions to elicit poplar. The title of the text is “Poplar,” and I asked the students to read out the sentence about Poplar, from which the word “tall and pretty” was put forward, and then let the students deepen their understanding of it in a few steps. First, explain the words. "high...