1[1]Allwright,D.(1984).Why Don't Learners Learn What Teachers Teach?-The Interaction
2[2]Hypothesis.In Singleton and Little.(Eds),Language Learning in Formal and Informal Contexts (pop 3-18).Dublin,BAAL/IRAAL.Chomsky,N.(1965).Aspects of the Theory of Syntax.Canbridge:MIT Press.
3[3]Ellis,R.(1999).Understanding Second Language Acquisition.Shanghai:Shanghai Foreign Language Education Press.
4[4]Long,M & C.Sato.(1983).Classroom foreigner talk discourse:forms and functions of teacher questions.In H.W.Seliger & M H.Long(Eds.),Classroom Oriented Research in Second Language Acquisition (pp.268-285).Rowley,MA:Newbury House.
