2Halliday M.A.K.& R.Hasan Cohesion in English[M].London:Longman,1976:198-299.
3Swan,M.The Influence of the Mother Tongue:on Second Language Vocabulary Acquisition and Use[C] // N.Schmitt & M.Maclarthy.Vocabulary:Description,Acquisition & Pedagogy.Cambridge:Cambridge University,1997:168-171.
4Krashen,S.Principles and Practice in Second Language Acquisition[M].Oxford:Pergamon,1982:59-60.
5Kaplan,R.Cultural Thought Patterns in Imercultural Education[J].Language Learning,1966(8):409.
6Keh,Claudia.Feedback in the Writing Process; a Model and Methods for Implementation[J].ELT Journal,1990(4):298.
