3[2]Krashen.S.D.Principles and Practice in Second Langauge Acquisition.New York:Pergamon Press Ltd.,1982.
4[3]Seliker,H.Psycholiguistic Issues in Second Language Acquistion.In L.M.Beebe (ed) Issues in Second Langauge Acquisition:Multiple Perspectives.New York:Newbury House Publishers,1988.
5[1]Rod Ellis. The Study of Second Language Acquisiton[M]. Oxford University Press. 1994.
6[2]Rod Ellis. Understanding Second Language Acquisition[M]. Oxford University Press. 1985.
7[3]Krashen. S. D. The Input Hyphotheses: Issue and Implications.[M]. New York:Pergamon Press,1985.
1Krashen SD.The Input Hypothesis: Issues and Implications. . 1985
2魏洛书.成人二语习得研究[J]大学英语(学术版),2006(01).
3Lamandella J.General principles of neurofunctional organiza tion and their manifestation in primary and non-primary lan guage acquisition. Language Learning Journal . 1977
