进行课外拓展是新课程理念的要求,也是时代发展的要求。但是教师的拓展要避免随意性,遵循以文本为基础,遵循适度的原则。并且对文本的拓展要能够引起学生的共鸣,还要遵循遵循适时性原则。从而在丰富课堂学习的同时,起到优化教学的效果。 Extra-curricular expansion is the requirement of the new curriculum concept as well as the requirement of the development of the times. However, the development of teachers should avoid arbitrariness and follow the principle of appropriateness based on texts. And to expand the text to be able to arouse the sympathy of students, but also to follow the principle of timeliness. Thus rich in classroom learning at the same time, play an optimal teaching effect.