8American Council on the Teaching of Foreign Languages. Standards for Foreign Language Learning in the 21st Century[ N] ,2006.
9Bailenson, J. N. & Blascovich, J. Avatars [ A 1- In Bainbridge, W. S. (ed.). Encyclopedia of Human-computer Interaction [ M ]. Great Bar- rington, MA : Berkshire Publishing Group, 2004.
10Bailenson, J. N. , Yee, N. , Brave, S. , Merget, D. & Koslow, D. Virtual interpersonal touch: Expressing and recognizing emotions through haptic devices [ J ]. Human-Computer Interaction, 2007 ( 3 ) : 325-353.