Dear Linda:
Welcome to our school and serve as a teacher in our school! It is such an honour for me to introduce my school to you in this e-mail, and of course I am sure you will love it and enjoy your days here.
Our school is located in the suburbs, for which it will take you about an hour to arrive here from the downtown area. As it is, the air here is fresh, which is beneficial to our health. Our school has many teachers, about 200 in all, two of them from Canada.There are three grades, and in each class, there are approximately sixty students.
It is also necessary to demonstrate your duties to you. Your mission is to teach English classes and organize after-school activities concerning English. We have been expecting a teacher like you to come and foster students.
Best Wishes!
Li Hua
2013.3.8

【视情况自己可以修改部分】
祝你好运O(∩_∩)O~