4Krashen, S. The input hypotheses: Issues and implications[M]. London: Longman, 1985.
5Mariani, L. Teacher support and teacher challenge in promoting learner autonomy. Perspectives Retrieved 6 June, 2005, from www.learningpaths.org/papers/papersupport.htm
6Swain, M. Communicative competence: Some roles of comprehensible input and comprehensible output in its development. In S. Gass & C. Madden (Eds.), Input in second language acquisition [M]. Rowley, MA: Newbury House, 1955.
7Krashen, S. Second language acquisition and second language learning[M]. Oxford: Pergamon Press.
8Stuart M.Getting ready for reading: Early phoneme awareness and phonies teaching improves reading and spelling in inner-city second language learners.British Journal of Education Psychology, 1999.
