摘要
The paper explores the universal laws of codeswitching among the three language varieties, namely, English, the Standard Chinese, and dialects on the part of Chinese English teachers at tertiary level on the basis of the questionnaire data derived from thirty-one doctoral graduate teachers. The Chi-square test results confirm American sociolinguist J. Fishman＇s Domain Theory. However, the author holds that the theory should be revised when applied to the study of codeswitching by Chinese English teachers at tertiary level, the original church domain is to be deleted, a novel public affairs domain is to be added to. Meanwhile the author further points out that the SC acquires linguistically functional reversibility whereas English and dialects are functionally irreversible. Finally the. author interprets that the nature of codeswitching turns out the reestablishment of social situation attempting to bring about intended social status and distance to the interlocutors.
