本研究以Lewis的语块理论(Lexical Approach)为依据,通过对藏族大学生英语口语进行测试,对语块数量进行统计分析,开展了基于语块内容的英语口语课堂教学实证研究,探讨了语块在藏族大学生英语口语中的运用情况,以及语块对藏族大学生英语口语输出能力的影响。研究结果显示:(1)藏族大学生英语口语表达中语块使用量较欠缺。(2)语块对藏族大学生的英语口语成绩有显著影响。(3)语块运用有助于藏族大学生英语口语输出能力的培养。 Based on Lewis’s Lexical Approach, this study tested Tibetan students’ spoken English and conducted statistical analysis on the number of chunks. Based on the chunks, this study conducted an empirical study of oral English classroom teaching, The use of Tibetan students in oral English and the effect of language block on the ability of Oral English output of Tibetan college students. The results show that: (1) Tibetan students use less English in their oral expressions. (2) The chunks have a significant impact on the oral English performance of Tibetan college students. (3) The use of chunks to help Tibetan college students develop their spoken English output ability.