6[5]HALLIDAY M A K,HASAN R.Cohesion in English[M].上海:外语教学与研究出版社,2001.
7Krashen.S.Principles and Practicein Second language Acquisition,NewYork:Pergamum Press,1982.17-18,20-23.
8Swain,M.Communicative competence:Some roles of comprehensible inputand comprehensible output in itsdevelopment.In S.Gass&C.Madden(Eds.),Input in Second LanguageAcquisition.Rowley,MA.:NewburyHouse.1985.235-253.
9Bernhardt,E.Reading Development in A Second Language:Theoretical Empirical & Classroom Perspectives[M].Norwood,NJ:Ablex,1991.
10Birnbaum,J.The Reading And Composing Behavior of Selected Fourth-And Seventh-Grade Students[J].Research in the Teaching of English,1982(16):241-260.
