于漪老师在其著作中曾经谈到:“教学中,教师要善于把课文中无声的文字通过师生的共同努力,变成有声的语言。语言或铿铿锵锵,如金属撞击声;或潺潺淙淙,如小河淌冰。伴随着悦耳的音响,课文中的思想、情感就会叩击学生的心灵,学生眼到、口到、耳到、心到,学得愉快,学得有效。” In his book, Yu Yi talked about the following: “In teaching, teachers should be good at turning silent words in the text into voiced languages ​​through the joint efforts of teachers and students.” Language or clamor, such as metal percussion, or The murmur, such as the river dripping ice.With the sweet sound, the text of the thoughts and feelings will be tapping the students’ minds, students eyes, mouth, ears, heart, learning to learn, effective. "