教学目的： 　　1.指导学生抓住重点词句联系上下文或查字典理解课文内容。 　　2.弄清句与句之间的联系，了解每个自然段的主要意思。 　　3.教育学生做任何事，都应具有实事求是的科学态度。 　　教学重点、难点： 　　1.联系课文内容，理解老师通过画杨桃这件事所讲的道理。 Teaching Objectives: 1. Guide students to grasp the key words or contact the context dictionary to understand text content. 2. To find out the link between the sentence and sentence, understand the main meaning of each paragraph. 3. Educating students to do anything should have a scientific attitude of seeking truth from facts. Teaching focus, the difficulty: 1. Contact the text content, understand the teacher by painting carambola this truth.