课堂教学中,导入是一个起始环节,是一堂课的开端。常言说“良好的开端是成功的一半”。精彩的导入设计,可以激发学生的学习兴趣,集中学生的注意力,调动学生的学习积极性,引导学生以积极饱满的精神状态进入学习情境,使课 Classroom teaching, the introduction is a starting point, is the beginning of a lesson. As the saying goes, “a good start is half the battle.” Wonderful introduction of the design, you can stimulate students interest in learning, focus on students’ attention, to mobilize the enthusiasm of students to guide students to a positive and full state of mind into the learning situation, the class