7De Fina, A., D. Schiffrin, & M. Bamberg. Discourse and Identity [ M ]. Cambridge : Cambridge University Press,2006.
8Dornyei, Z. The Social Psychology of the Language Learner : Individual Differences in Second Language Acquisition[ M ]. Mahwah, NJ: Lawrence Erbaum Associates,2005.
9Gao, Yihong. Foreign Language Learning: "1 + 1 >2. "[ M ]. Beijing: Peking University Press,2001.
10Lambert, W.E. Culture and language as factors in learning and education[ A]. In F.E. Aboud & R. D. Meade (eds.). Cultural Factors in Learning and Education [ C ]. Bellingham, Washington: Fifth Western Washington Symposium on Learning, 1974:91-122.