1Grabe, W. and Stoller, F. L: 1997, Content - based instruction: Research foundations,in M.A. Snow and D.M. Brinton (eds.), The Content - Based Classroom: Perspec - tives on Integrating Language and Content, Longman, New York.
2Krueger, M. and Ryan, F. (eds.): 1993, Language and Content: Discipline - and Con - tent - Based Approach to Language Study, D.C. Heath, Lexington, MA.
3Snow, M. A., & Brinton, D. M. (Eds.). (1997). The content - based classroom: Perspectives on integrating language and content. New York: Longman.
4Stryker, S. , Leaver, B. (1997). Content - based instruction in foreign language education: models and methods. Washington DC: Georgetown University Press.
3Krashen, S. Principles and Practice in Second Language Acquisition. Oxford:Pergomon. 1982.
4Brinton,D.M.,Snow,M.A.,&Wesche,M.B.Content-based Second Language Instruction(classics ed.)[M].Ann Arbor,MI:University of Michigan,2003.
5Met, M. Curriculum Decision--making in Content-- Based Language Teaching[A]. Beyond Bilingualism: Multi- lingualism and Multilingual Education[C~. Clevedon: Multi- lingual Matters, 1998:61.
6Donna Brinton, Marguerite Ann Snow, Marjorie Bingham Wesch. Content--based Second Language Instruc- tion[M]. Ann Arbor: University of Michigan Press, 2003: 2.
