1Allwright,D,K.M.Bailey.Focus on the Language Classroom[]..1991
2Couthard,M.An Introduction to Discourse Analysis[]..1997
3Pica,T.,M.H.Long.The Linguistic and Conversational Performances of Experienced and Inexperienced Teachers[].Talking to Learn:Con-versation in Second Language Acquisition.1986
4Sinclair,J.,M.Coulthard.Towards an Analysis ofDiscourse[]..1975
5Swain,M.Three Functions ofOutput in Second Language Learning[]..
6Allwright R.The importance of interaction in classroom language learning[].Applied Languistics.1984
7Ellis,R.Instructed Second Language Acquisition[]..1990
8Swain,M.The output hypothesis: Just speaking and writing aren’t enough[].The Canadian Modern Lan- guage Review.1993
