Acknowledgements【1】

First of all, I would like to express my appreciation to all the teachers at Foreign Languages Institute of Sichuan Normal University, whose instructions and guidance have made my four years at this university a truly rewarding experience. In particular, I wish to express my sincere thanks to such professors as professor Sun Kaixiang, professor Liao Rongzhu, professor Mengqing, professor Zhang Shunfu, from whose lectures I have profited tremendously over the four-year graduate programme.

Words fail me when I try to express my heartfelt thanks to my supervisor, professor Wang Yong, for all his inspiring ideas and kind of help throughout the process of my graduation paper writing. Without his helpful suggestions, his clear guidance and his patient corrections, the accomplishment of this graduation paper would have been impossible.

Also I am very grateful to my fellow classmates and friends, who have offered me their generous help. 

Last of all, I would like to express my gratitude to my parents for their strong support and deep care during the process of my graduation paper writing.    

Acknowledgements【2】

One the completion of this paper, I would like to address my cordial thanks to my supervisor, Ms. Qin Tianyi, for her seasoned assistance in the preparation of this manuscript, her seasoned guidance, keen instruction, professional advice, and especially her careful reading and correcting of the drafts. Only with her help and patience, could this paper be accomplished.

I am also deeply indebted to all the teachers at Foreign Languages Institute of Sichuan Normal University, whose courses enriched me with invaluable knowledge and intellectual perception.

Acknowledgment【3】

  First I would like to express my sincere gratitude towards my tutor, Qin Sujue. It is my first time to write an essay and I know little about that. My tutor gives me patient guidance and valuable suggestions to help me improve it. Under her kind and professional help, I finally complete my final paper.

  Then i want to give my thank to all my teachers in the college for their teaching and finally thanks to my friends to help me to search the information I need in this paper.