PostscriptThis book is based on my Ph.D dissertation. Organizing my ideas into this book would be impossible without the help of many people. I would like to thank all of theolerance，and support，because I have benefited a lot from them all.
First and foremost，my deepest gratitude goes to Professor Yu Jianhua，supervisor of my Ph.D. studies，for his insightful suggestions for the choice of my topic, his patient hearing of my fractured thoughts, his expert questioning of al reading of my first draft and his enlightening urging for able title. Without his help and encouragement, this project might be sheer impossibility. Without his tolerance and even indulgence，my three years Ph.D. studies in SISU would not be that smooth and rewarding.
hanks go to Professor Li Weiping, Professor Qiao Guoqiang，Professor Zhang Dingquan，Professor Wang Enming for their systetures which I attend and appreciate. From their impromptu as well as prepared speeches I learn a lot. These courses help to broaden my academic horizon and foster in particular academic fields.
My gratitude goes to Professor Zhou gyin，and Wang Yixuan for their critical suggestions provided in my defense for the thesis proposal. My gratitude also goes to Professor Chen Guangxing, for his encouragement in area.
I am also grateful to didates in SISU: Zhang Jianran and Wan Xiaolei，for the inspiration they give me in our discussion about literary texts and theories.
I am especially grateful to editors in Shanghai Jiaotong University Press，for their critical suggestion about the forolerance and kindness，without which this publishing project would be an impossibility.
hanks go to qiao，for his support before and during my Ph.D. studies，for his understanding of the cod for his scientific arranged financial resources in our fao share the housework and to be a temporary hands-on daddy liberates me from the multitudinous housework and enables me to pay full attention to my academic study.
My thanks go to my parents and parents-in-law, for their love and support.
I dedicate this book to my daughters Luo Wangjin and Luo Yuanjin，to whom I owe love and responsibility as a mother and friend.