3Tonkyn A. Introduction:Grammar and the language teacher [ A ]. Byg- ate M,Tonkey A, Williams E. Grammar and language teacher[ C ]. London:Prentice Ha11,1994. 被引量:1
4Wilkins D A. Linguistics in language teaching [ M ]. London:Edward Arnold, 1972. 被引量:1
5Burgess J, Etherington S. Focus on grammatical form: Explicit orimplicit? [ J]. System,2002, (3). 被引量:1
6Long M, Robinson P. Focus on form [ A ]. Doughty C, Williams J. Focus on form in classroom second language acquisition[ C]. Cam- bridge : CUP, 1998. 被引量:1
7Brown H D. Principles of language learning and teaching[ M]. Lon- don : Prentice Hall, 1994. 被引量:1