5[1]Sapir E.Language:An Introduction to the Study of Speech[M].New York:Harcourt,Brace & Company,1921.221.
6[3]Chomsky N.Aspects of the Theory of Syntax[M].Cambridge,Mass.:M.I.T.Press,1965.39-48.
7[4]Hymes D.Language in Culture and Society:A Reader in Linguistics and Anthropology[M].New York:Harper and Row Publishers,1964.104-116.
8[5]Hymes D."On Communicative Competence"In Brumfit,C.J.and Johnson,K.(eds.)The Communicative Approach to Language Teaching[C].Oxford:Oxford University Press,1972.16-18.
9[6]Byram M.Teaching and Assessing Intercultural Communicative Competence[M].Clevedon:Multilingual Matters,1997.39-41.
