本文从语言输入和输出的角度,探讨了课文复述训练作为课堂教学常用的以内容为中心的活动之一,对提高大学生英语表达能力的作用。课文复述训练是读说写相结合的活动,体现了语言输入和输出相互作用的过程。通过课文复述训练,学生的语言知识得以积累和巩固,而且促使了学生语言输入向输出的转化。 From the perspective of language input and output, this article explores the effect of text paraphrase training as one of the commonly used content-centered activities in classroom teaching to improve college students’ ability of expressing English. Paraphrasing the text is a combination of reading and writing activities, reflecting the process of language input and output interaction. Through the paraphrase training of the text, students ’language knowledge can be accumulated and consolidated, and the students’ language input to output transformation has been promoted.