一、普通英文邀請函

　　第一種邀請信邀請的對象一般是朋友、熟人，所以內容格式上的要求都比較松，可以寫得隨便一些。只要表明邀請的意圖，說明活動的內容、時間、地點等等。但既然是邀請信，那么就一定要在信中表達非常希望對方能夠參加或者出席的愿望。這種邀請信的篇幅可以非常短，下面以一封邀請看電影的短信為例：

　　Dear Jane,

　　We have four tickets for a famous film shown at Guangming Cinema, TheLongest Day, Friday, the ninth. Will you join us? We'll be looking for youat eight sharp Friday night in front of the cinema, so don't disappoint

　　us!

　　Warmest regards.

　　Alice

　　二、正式英文邀請函

　　第二種邀請信一般由會議或學術活動的組委會的某一個負責人來寫，以組委會的名義發出，而且被邀請者通常也是屬于比較有威望的人士。因此，這類邀請信的措辭要相對正式一些，語氣要熱情有禮。

　　這一類邀請信通常要包括以下內容：首先表明邀請對方參加的意圖以及會議或學術活動的名稱、時間、地點;然后要對被邀請者的威望和學術水平等表示推崇和贊賞，表明如果被邀請者能夠接受邀請，會給會議或者活動帶來很好的影響;接著要說明會議或活動的相關事宜，最好是能引起對方興趣的事宜;當然不能忘了表達希望對方能夠參加的誠意;最后還要請收信人對發出的邀請做出反饋，如確認接受邀請。下面是一封邀請對方參加學術會議的信函：

　　Dear Professor Wang,

　　On behalf of the Ohio State University and the IEEE Computer Society, Iwould be very pleased to invite you to attend and chair a session of theforthcoming 2004 International Conference on Parallel Data Processing tobe held in Bellaire, Michigan, from October 25 to October 28, 2004.You are an internationally acclaimed scholar and educator. Yourparticipation will be among the highlights of the Conference.

　　We sincerely hope that you could accept our invitation. As you know, this is the 10th anniversary of the Conference and we plan to make it a truly international meeting. We have accepted many papers from several foreign countries, including two from China.

　　If you can come, please let us know as soon as possible, since we have to prepare the final program soon. We are looking forward to your acceptance.

　　Sincerely yours,

　　Peter White