1Gardner, K.C and P. D. MacIntyre. On the Measurement of Affective Variables in Second Lansuage Learning [J] .Language Learning, 1993, (43).
2Johnson, D.W. &Johnson, R. T. Learning Together and Alone: Cooperative, Competitive, and Individualistic Learn/rig [M]. (4thed). Need ham Heights, 1994.
2[1]Horwitz, E. K., M. B. Horwitz and J. A. Cope(1991). "Foreign Ianguage Classroom.
3[2]Anxiety" in E. K. Horwitz and D. J. Young, Language Anxiety, 27 -39. Englewood Cliffs, NJ: Prentice Hall.
4[3]Price, M. L. (1991). "The Subjective Experience of Foreign Language Anxiety: Interviews with Highly Anxious Students" in E. K. Horwitz and D. J.Young, Language Anxiety, 101-108. Englewood Cliffs, NJ: Prentice Hall.
5[4]Oxford, 4.L. Cooperative learning, collabrative learning, and interaction: Three communicative strands in the language classroom. Modern Language Journal , 1997,81(4), 443-456.
6[5]Beebe, L. (1983). Risk- taking and the language learner. In Seliger,H. & Long, M. (eds.),Classroom- oriented research in second language acquisition, 39-66. Rowley, MA: Newbury House.
