众所周知,教学过程一般分为导入新课、讲授新课、课堂小结、巩固练习几个环节。俗话说得好“良好的开端等于成功的一半。”一部好的电视剧,如果再有一个激动人心的序幕,就能更好的吸引观众;一本好的小说,如果再有一个扣人心弦的序言,就能更好的吸引读者;一堂成功的课,如果再有一个引人入胜的开场,就能更好的吸引学生。事实证明,成功的导入,对于调动学生的学习积极性,主动性,创造性,对于活跃课堂气氛,提高学习效 As we all know, the teaching process is generally divided into the introduction of new courses, teaching new courses, classroom summary, consolidation exercises several links. As the saying goes, “a good start is equal to half the battle.” "A good drama, if there is another exciting prologue, will be better at attracting viewers. If there’s another exciting novel Of the preamble, we can better attract readers; a successful lesson, if there is another fascinating opening, we can better attract students. Facts have proved that the introduction of success, to mobilize the enthusiasm of students learning, initiative, creativity, for an active classroom atmosphere, improve learning effectiveness