1[1]Andres,V.2000.Self-esteem in the Classroom or the Metamorphosis of Butterflies[J].In Arnold(Ed.),2000,87-102.
2[2]Baily,K.1983.Competitiveness and Anxiety in Adult Second Language Learning:Looking at and through Diaries Studies[J].In Seliger,H.W.& Schohamy,E.(Eds),1989,Second Language Research Methods.Oxford:OUP.
3[3]Busehd,D.1982.Introversion-Extroversion and EFL Proficiency of Japanese Students Language Learning,39,109-132.
4[4]Ehrman,Madeline.Ego boundaries and tolerance of ambiguity in second language learning.Cambridge University Press,1999,Foreign Language Teaching and Research Press.
5[5]Horwitz,E.K.,Horwitz,M.B.& Cope,J.1986.Foreign language classroom anxiety Modem Language Journal,70:125-132.
6[6]Nyikos,M.1990.Sex Differcnces in Adult Language Learning:Socialization and Memory Factors.Modern Language Journal,3,273-287.
7[7]Young D.J.1991 Creating a Low-Anxiety Classroom Environment:What Does Language Anxiety Research Suggest?[J] The Modern Language Journal,75:426-437.
8[8]Young D.J.1990 An Investigation of Students'Perspectives Anxiety and Speaking Foreign Language Annah 23:539-53.
