假定你是李华，是某国际高中英语角的负责人。校英语角打算下周五举办一场关于英语方言的讲座，请用英语给你校外籍教师Mr. Smith写一封邮件，内容包括：
1.邀请他担任主讲嘉宾；
2.邀请他担任主讲嘉宾理由；
3.介绍讲座的相关信息；
4.期待回复。
注意：
1.词数100左右；
2.可适当增加细节，以使行文连贯。
参考词汇：方言：dialect； 主讲嘉宾：honored guest speaker
Dear Mr. Smith，
___________
Yours，
Li Hua

【考点】提纲作文．

【答案】Dear Mr. Smith，
How is everything going recently？ I am writing to invite you to be our honored guest speaker for the coming lecture on different English dialects.
As a language expert， you must have a lot to say about this topic. We know you have done a lot of research on English dialects. Therefore， we would greatly appreciate it if you could come and share your study and findings with the students. I believe your vivid speech would help them understand English much better. The speech will be from 3 pm to 4 ：30 pm next Friday in the lecture hall of our school.
Will you be available then？ I am looking forward to your early reply.
Yours faithfully，
Li Hua