导语就是开场白。课堂导语的质量将直接影响一节课的教学效果，而每篇课文第一课时的导语尤为重要。好的导语对于学生能起到调动积极性、激发求知欲的作用。随着教育改革的深化，优化课堂教学语言、提高40分钟的教学效率已成为广大教师潜心研究的热门话题。一般来说，课堂导语 Lead language is the opening. The quality of the lead in a class will directly affect the teaching effectiveness of a class, and the lead of the first class of each class is especially important. A good guide for students to play a positive role in mobilizing the curiosity. With the deepening of education reform, optimizing the language of classroom teaching and improving the teaching efficiency of 40 minutes has become a hot topic for the majority of teachers. In general, the class lead