假设你是育才中学学生会主席李华，你校将举办一次英语演讲比赛，希望附近某大学的外籍教师Smith女士来

Dear Ms.Smith,
Our school decides to hold an English compitition and hope that you can come and be our judges.I am sure that you will have a particular nice time!
And there are something important to tell you.The topic of the compitition is Man and Nature.It will last from 2 o'clock to 5o'clock pm. for three hours on June 15th at No.501 classroom.And at that time 10 excellant students will attend on time.If you have any questions please contect with Li Hua on tel:4487655.Welcome to attend!

your Faithful
The Student body President of Yucai Middle School
Li Hua

是我自己一个单词一个单词地打出来的...我是刚刚初中毕业准备升高中的，词汇内容应该会符合你的要求。个别用法可能可以更改，不过总的来讲是没有问题的只是个人用语习惯不同。
望采纳哈！谢谢

【信排头Ms. Smith 中的Ms是针对不知情确定婚姻情况的女士，已婚的用 Mrs+夫姓 ，未婚的用 Miss + 自姓】