1. 一般开头

    How is everything going with you? I am writing to extend my heart-felt thanks to you for …(感谢)

    Thank you for your letter of February 8 informing me that I have been accepted by your college. But I must apologize to you for… (道歉)

    I am writing to inform you that ... (通知)

    I am writing to seek your assistance in… to request to（请求）

    I am writing to express my views on … (建议)

    I am writing in response to your… (回应)

    I am writing to apply for the scholarship that your department offers to students from other countries. （申请）

    I am writing to see if it is possible for you to provide me with information regarding…（咨询）

    I am writing to express my disappointment/dissatisfaction about … to complain about …(抱怨)

    I am writing to lodge a claim for the suitcase I lost on my journey to … (挂失)

    I have learned from…that you are looking for …. And I am writing to recommend …for the post.(推荐)

    补充句型：I am writing this letter for the purpose of doing sth. (较为正式) 表达感谢的句型

    I am most grateful to you for your…

    I am writing this letter to express my sincere gratitude for…

    I would like to convey in this letter my heartfelt thanks for…

    I feel greatly indebted to you for ….

    I am writing to tell you how greatly I appreciate all you have done for me.

    But for your kind assistance, I would have …

    I must thank you again for your generous help.

    My thanks to you for you generous help are beyond words.

    Please accept my deepest gratitude. 表达道歉的句型

    I feel really sorry to you for …

    I must apologize to you for…

    I would like to express my deepest apology/regret for not being able to …

    Had I …, I would have…

    I want you to know how badly I feel about… 一般结尾

    Any favorable consideration on my application/requests will be highly appreciated.

    I am looking forward to your favorable reply at your earliest convenience.