7Ehrman M E, Leaver B L, Oxford R L. A brief overview of individual differences in second language learning. System, 2003, 31:313- 330.
8Midori Kimura. Affective Factors of Japanese EFL Learners at Junior College in the Oral Communication Tasks.
9Horwitz E K, Horwitz M B, Cope J. Foreign Language classroom anxiety. The Modem Language Journal, 1986, 70:125 - 132.
10Aida Y. Examination of Horwitz, Horwitz, and Cope's construct of foreign language anxiety: The case of students of Japanese. Modem Language Journal, 1994,78:155- 168.
5Brown H D.Principles of Language Learning and Teaching(2nd edition)[M].Englewood Cliffs,New Jersey:Prentice-Hall,Inc.,1987.
6Horwitz E K,Young D J.(Ed.)Preliminary Evidence for the Reliability and Validity of a Foreign Language Anxiety Scale.Language Anxiety:From Theory and Research to Classroom Implications[M].Englewood Cliffs,NJ:Prentice Hall,1991.
7Kim J H.Foreign language listening anxiety:A study of Korean students learning English[D].The University of Texas at Austin,2000.
8MacIntyre P D.The subtle effects of language anxiety on cognitive progressing in the second language[J].Language Learning,1994,(44).
9MacIntyre P D,Gardner R C.Anxiety and second language learning:Toward a theoretical clarification[J].Language Learning,1989,(39).
10Philip E M.The effects of language anxiety on students' oral test performance and attitudes[J].The Modern Language Journal,1992,(70).