4Sinclair J M,R M Coulthard.Towards An Analysis of Discourse: The English Used by Teachers and Pupils[]..1975
5Tomlinson B.Materials Development in Language Teaching. Journal of Women s Health . 1998
6Lyster R,Ranta L.Corrective feedback and learner uptake: negotiation of form in communicative classrooms. Studies in Second Language Acquisition . 1997
7Ellis R.Instructed Second Language Acquisition. Journal of Women s Health . 1990
8Cullen R.Supportive teacher talk: the importance of the F-move. ELT Journal . 2002
9Egi,T.Recasts, perceptions and L2 development[]..2004
10Nassaji H,Wells G.What’’s the use of’’Triadic Dialogue’’?:An investigation of teacher-student interaction[].Applied Linguis tics.2000
6Allwright, R. 1984. The importance of interaction in classroom language learning [ J ]. Applied Linguistics 5.
7Allwright, D. & K. M. Bailey. 1991. Focus on the Language Classroom [M]. Cambridge: Cambridge University Press.
8Antón, M. 1999. The discourse of a learner-centered classroom: Sociocultural perspectives on teacherlearner interaction in the second-language classroom [J]. The Modern Language Journal 83, iii.
9Brock, C. 1986. The effect of referential questions on ESL classroom discourse [ J ]. TESOL Quarterly20/1.
10Brophy, J. 1981. Teacher praise: A functional analysis [J]. Review of Educational Research 51.
