1987- 1988 studying English language and literature at Pacific university. From 1989 to 1993, doctoral students were jointly trained by Hangzhou University and University of Sussex. 1999-2000 visited Oxford University for 6 months. From June 2000 to 10, I taught in the English Department of Klagenfurt University, Austria for 2 weeks. From March to August, 200/KLOC was hired as a visiting researcher by the University of Hong Kong. In June 2003, I taught in the English Department of Klagenfurt University in Austria for 4 weeks. In 2004, he won the "Special Research Award" established by the Canadian government and was invited to visit the University of Toronto and the University of Ottawa for five weeks. From June 2004 to March 2005, I was engaged in cooperative research at Indiana University. From October 2006 to February 2007, I visited the University of Michigan. From June to August, 2008, I visited Harvard University.