1、判断是不是个人书信&事务公函
决定：
语域使用：正式：使用礼貌表达，不用缩略语(对公)
半正式：可以使用缩略和口语表达(对私)
非正式：(一般不考)——It depends
呼语： 特定的写信对象：Dear
不明确收信人：Dear Sir/Madam， or To Whom It May Concern
2、正文
三段(8句)：写作目的段、细化段、感谢或者期待。
3、各种信函内容安排
A.框架
第一段： 写信目的，指出写信人和被推荐人的关系;
第二段： 推荐原因(品质，能力，性格等)：多写优点肯定成绩;
第三段： 总结说明被推荐人值得被推荐(例如能胜任某项工作)，
B.范文
Dear sir/ Madam，
It is with great pleasure that I recommend to you Zhang Jian， an outstanding graduate majoring in Business Administration.
I have been in charge of Mr. Zhang‘s class since they were freshmen， so I know his well. He is courteous， sincere and hardworking. He took several courses in computer science， which strengthened his administration ability. And his excellent communication ability and a good command of English add a lot to his managerial skills.
I believe Zhang Jian is the right person for the position as an administrator in your company. I recommend him without reservation and believe you will find him a helpful and responsible staff member.