课堂教学新课的导入,负有酝酿情绪,集中学生注意力,渗透主题,带入情境的任务。一段精心设计的导入,能充分调动学生的精神状态,激发学生学习的热情,驱除学生学习的疲劳,集中精力听好一堂课,步入求知欲的振奋状态,同时促进学生综合分析、归纳总结、推理、判断等抽象逻辑思维的形成和发展,培养学生良好的科学素质,从而大大提高学习效率。 The introduction of the new lesson in classroom teaching has the task of brewing emotions, concentrating students’ attention, infiltrating the theme and bringing the situation into context. A well-designed introduction, can fully mobilize the student’s mental state, stimulate student enthusiasm for learning, get rid of student fatigue, concentrate on listening to a lesson, into the excitement of curiosity, and promote students a comprehensive analysis, summarize, Reasoning, judging the formation and development of abstract logical thinking, cultivating students’ good scientific quality and greatly improving the learning efficiency.