7Kafai, Y. & Resnik, M. Constructivism in Practice: Designing, Thinking & Learning in a Digital World [ M ]. Mahwah, NJ: Lawrence Erlbaum Association, 1996.
8Rogers, C. Freedom to Learn: A View of What Education Might Become [ M ]. Columbus, Ohio: Charles E. Merrill PubLishing Company, 1969.
9Gardner, D. & Miller, L. Establishing Self - Access : From Theory to Practice [ M ]. Shanghai: Shanghai Foreign Language Education Press, 2003.
10Oxford, R. L. Use of language learning strategies : a synthesis of studies with implications for teacher training [J]. System, 1989, (17): 235 -47.
