4Klee, C. A. & D. J. Tedick. The undergraduate foreign language immersion program in Spanish at the Univeristy of Minnesota[ A]. In Stryker, S. B. & B. M. Leaver (ed.). Content- based Instruction in Foreign Language Education: Models and Methods[ C]. Washington, D. C. : Georgetown University Press, 1997:140-173.
5Shaw, P. A. With one stone : models of instruction and their curric- ular implications in an advanced content - based foreign language program[A]. In Stryker, S. B. &B. M. Leaver (ed.). Content- based Instruction in Foreign Language Education: Models and Methods[ C]. Washington, D. C. : Georgetown University Press, 1997: 261 - 282.
6Chamot, A. U. & J. M. O' Malley. The CALLA Handbook: Implementing the Cognitive Academic Language Learning Approach [ M]. Reading: MA: Addison - Wesley, 1994.
7Nunan, D. Second Language Teaching and Learning[ M]. Beijing: Foreign Language Teaching and Research Press, 2001. 172.
8Stryker, S. B. & B. M. Leaver. Content-based Instruction: some Lessons and Implications[ A]. In Stryker, S. B. & B. M. Leaver (ed.). Content- based Instruction in Foreign Language Education: Models and Methods [ C ]. Washington, D. C. : Georgetown University Press, 1997 : 285 -312.
9Klapper, J. Foreign - Language Learning through Immersion Germany's Bilingual- Wing Schools [ M ]. Lampeter: the Edwen Mellen press, 1996.
10Baker, C. Foundations of Bilingual Education and Bilingualism [ M]. Clevedon: Multilingual Matter Ltd, 2001. 251.
