4杨素英 黄月圆 孙德金.汉语作为第二语言的体标记习得[J].Journal ofthe Chinese Language Teachers Association,1999,(1).
5Quirk R．etal.A Comprehensive Grammar of The English Language(中译本)[M].上海:华东师范大学出版社,1989..
6Anderson, R. Development sequences: the emergence if aspect marking in second language acquisition[A]. In T. Huebner & C. A. Ferguson (eds). Cross-currents in Second Language Acquisition and Linguistic Theories [ C ]. Amsterdam:John Benjamins, 1991:305-324.
7Bardovi-Harlig, K. Tense and Aspect in Second Language Acquisition: Form, Meaning and Use[M]. Oxford and Malden, Mass:Blaekwell Publishers, 2000.
8Biber, D. , S. Johansson, G. Leech, S. Conrad & E. Finegan. Longman Grammar of Spoken and Written English[M]. Beijing:Foreign Language Teaching and Research Press, 2000.
9Crystal, D. A Dictionary of Linguistics and Phonetics[Z].Beijing: The Commercial Press, 2002.
10Dulay, H. S. ,& M. K. Burt. Natural sequences in child second language acquisition[J]. Language Learning, 1974 (24) : 37-53.
