1Dornyei, Z. 2005. The Social Psychology of the Language Learner: Individual Differences in Second Language Acquisition[M].Mahwah, NJ: Lawrence Erlbaum Associates.
2Gardner, R. 1985. Social Psychology and Second Language Learning: The Role of Attitudes and Motiration [M]. London: Edward Arnold.
3Lantolf, J. (ed.). 2000. Sociocultural Theory and Second Language Learning [C]. Oxford: OUP.
4Norton, B. 1995. Social identity, investment, and language learning [J].TESOL Quarterly 29: 9- 31.
6Vroom, V. 1964. Work and Motivation [M]. New.York: Wiley.
7Weiner, B. 1979. A theory of motivation for some classroom experiences [J]. Journal of Educational Psychology 71 : 3-25.
8Wen, Qiufang & R. K. Johnson. 1997. L2 learner variables and English achievement: A study of tertiarylevel English majors in China [J]. Applied Linguistics 18: 27-48.
9Williams, M. & R. Burden. 1997. Psychology for Language Teachers [M]. Cambridge: Cambridge University Press.
10Zanden, J. V. & A. J. Pace. 1984. Educational Psychology: In Theory and Practice [M]. New York:Random House.
5Stern H. Fundamental Concepts of Language Teaching [M]. Oxford :Oxford University, 1997 : 368.
6Trautwein U, Ludtke O, Nagy G, et al. Within-School Social Comparisons:How students perceive the standing of their class predicts academic self-concept [J]. Journal of Educational Psychology, 2009,101 (4) : 853-866.
7Horwitz E. Preliminary evidence for the reliability and validity of a foreign anxiety scale [J]. Tesol Quarterly, 1986,20(3) : 559-562.
8Rossier R. Extroversion-introversion as a significant vari- able in the learning of oral English [D]. California:Uni- versity of Southern California, 1976 : 38.
9Buch D. Introversion-extroversion and the EFL proficien- cy of Japanese students [J]. Language Learning, 1982, 32:109-132.
10Ellis R. The Study of Second Language Acquisition[M].Oxford :Oxford University Press, 1994 : 22.