参考范文：

Dear professor,

     I feel very happy when I accept your invitation, and I think it would be my great honor to give a presentation to the students overseas. Meanwhile, I’d like to express my gratitude for giving me the opportunity.
    The details of the presentation are as follows. To begin with, I will briefly introduce traditional Chinese culture, which is the accumulation of Chinese history. History makes the Chinese culture colorful and prosperous. Moreover, many other kinds of cultural forms such as Chinese painting, poem, opera and so on are needed to show to the students abroad, which can help broaden their horizons and have a better understanding of Chinese culture.
    Thanks a lot for your time and attention to this letter, words are beyond me to express my thanks to you. I will try my best to do this presentation. Finally, looking forward your reply.

                                                       Yours sincerely,

                                                             Li Ming