[01] Brown, H. D. Teaching by Principles: An Interactive Approach to Language Pedagogy[M]. Prentice Hall Regents, 1994.

  [02] Brown, J Set al. Situated Cognition and the Culture of Learning[J]. Educational Reasercher, 1, 1989.

  [03] Chris, Dede. The Evolution of Constructivist Learning Envi-ronments: Immersion in Distributed Virtual Worlds[J]. Ed-ucational Technology, Sept-Oct, 1995.

  [04] Hymes, D.On communicative competence[M]. J. B. Pride; J. Holmes (eds). Sociolinguistics. Harmondsworth: Penguin, 1972.

  [05] L. E. Sarbaugh. Intercultural communication[M]. New Brunsw-ick, N.J.U.S.A: Transaction Books, 1988.

  [06] Puhl, A.. Classroom A ssessment[J]. EnglishTeaching Forum, 1997.

  [07] Thomas, Jenny. Cross-cultural Pragmatic Failure[J]. Applied Linguistics, 1983, (4): 91-111.

  [08] William B Gudykunst. Intercultural communication theory[M]. Beverly Hills, CA: Sage Pub, 1983.