1Benson, P.Autonomy in language learning. London: Longman ....Cooperative learning. Review of Educational Research, 2001 : 50,315 - 342.
2Dickinson, L. Self - instruction in Language Learning [ M ] . Cambridge: Cambridg University Press. 1996.
3Helec, H. Autonomy in Foreign Language Learning [ M ]. Oxford: Pergamon, 1981.
4Kilpatrick, W.H. The project method. Teachers College Record [ M ]. 1918:19, 319 - 335.
5Wang Xiaoling, "On Autonomy: Some Theoretical and Pedagogical Considerations for Chinese EFL Contexts" [ A ]. Teaching English in China[ J] .2002: 25/2.
5Cuseo J. Collaborative & cooperative learning in higher education: A proposed taxonomy [ J ].Cooperative Learning and College Teaching,1992,2(2).
6Elbaum B E et al. Urban middle-elementary students' perceptions of grouping formats for reading instruction[ J ]. Elementary School Journal, 1997, (5).
7Elbaum Bet al. A meta-analytic review of the effect of instructional grouping format on the reading outcomes of students with disabilities[A]. In R Gerstcn et al(ed. ). Issues and Research in Special Education [ C ]. Hillsdale, NJ :Edbaum, 2000.
8Flood Jet al. Am I allowed to group: Using flexible patterns for effective instruction [ J ]. The Reading Teacher, 1992, 45(8).
9George H. Research on Written Composition[M]. Urbana: Ncre-Eric, 1986.
10Harmer J. The Practice of English Language Teaching[M]. Harlow: Longman, 1991.
