常言道:良好的开端是成功的一半。著名特级教师于漪曾说过:“课的第一锤要敲在学生的心灵上,激发起他们思维的火花,或像磁石一样把学生牢牢地吸引住。”好的导语像磁石,能把学生分散的思维一下子聚拢起来。课堂伊始,能充分地调动学生积极的思维活动是课堂教学成功的关键,而富有智慧的导入语可以激发学生的思维兴趣,让课堂灵动起来。 As the saying goes: a good start is half done. Yu Yi, a famous teacher said: “The first hammer of the class knocks on the students’ minds, stimulates the sparks of their thinking, or attracts the students like a magnet.” "The good lead language like a magnet , Students can be scattered thinking suddenly gather together. At the beginning of the class, to fully mobilize students ’positive thinking activities is the key to the success of classroom teaching, and the wisdom of the introductory language can stimulate students’ interest in thinking, make the classroom smart.