Based on the previous research and practice, the present paper conducts an investigation in three Chinese universities
to find out the general situation of the switching to Chinese and attempts to test the positive role of the use of
Chinese in the EFL classroom of Chinese universities. This case study focuses on revealing the attitudes of teachers and
students towards the patterns, functions, factors and influence of the switching to Chinese in the EFL classroom of Chinese
universities.The study integrates the qualitative and quantitative research methods to analyze teachers’ codeswitching
to Chinese through the teachers and students’ questionnaires and classroom recordings.
Based on the analysis of the data, this study concludes that the switching to L1 is prevalent in the EFL classrooms of some
Chinese universities and that it plays a positive role in the process of teaching and learning of English language