Structure Patterns of Code-Switching in English Classroom Discourse

This paper analyses the structure patterns of code-switching quantitatively and qualitatively based on EFL classroom discourse. Through the detailed analysis, the paper finds that there are different structure patterns in which teachers often switch their codes in English classroom. These structure patterns are reflected in different language levels: words and phrases level, clausal and sentence level. The functions of code-switching are determined by those structure patterns that teachers will choose for different purposes in the process of teaching.