Directions: Suppose you are the dean of the History Department, Peking University. You want to invite Professor Herb Jason, a well-known scholar of Chinese history, to come to attend an international conference on Chinese history. You'll cover the following points:

1.The purpose of the invitation

2.The time and place of the conference

3.Ask him a favor of presenting a lecture to your students during his stay

Write your letter in no less than 150 words. Do not sign your own name at the end of the letter; use Li Ming instead. You do not need to write the address。

Dear Professor Herb Jason,

　　I am Li Ming, the dean of the History Department, Peking University. I am writing to invite you to participate in an international conference which is to be held in Beijing from 22nd to 25th, July, 2009。

　　Since your visit in Beijing last year, all the teachers that attended your lecture have been deeply impressed with your thorough knowledge and profound understanding of the subject. It would be our great honor if you could come to attend the International Conference on Chinese History. If possible, would you please deliver /address a speech on whatever subject that interests you. Enclosed in this letter is a time schedule for the event. You would, of course, receive our standard honorarium to cover traveling and other expenses. When you arrive in Beijing, I will certainly meet you at the airport。

　　Please let me know your date of arrival if you can come and tell us when you can make the trip. If you have any questions, please don't hesitate to contact me. Look forward to your favorable reply。

　　Yours sincerely,

　　Li Ming