一般书信的写作格式：通常有信头（Heading）、信内地址（Inside Address）、称呼（Salutation）、正文（Body）、结束语（Closing）、签名（Signature）等几个部分组成。
Heading：发信人的地址（有时还包括电话号码）和发信日期
Inside Address ：收信人的姓名（有时还包括头衔）和地址
Body：1）陈述主要信息或信函的目的2）详细陈述3）限制或限度（补充说明）4）总结
Closing：Best，Best regards,Sincerely,Sincerely yours,Truly yours,Respectfully,Respectfully yours,
感谢信开头段常用句式和套话
I am writing to extend my sincere gratitude for…
I am writing to express my thanks for…
I am writing to show my sincere appreciation for…
I would like to convey in this letter my heartfelt thanks to you for…
I feel deeply indebted to you and I really don’t know how to thank you enough for your help.
感谢信结尾段常用句式和套话
I must thank you again for your generous help.
I am most grateful for your selfless donation.
My true gratitude is beyond the word’s deion.
I feel most obliged to thank you once more.
Please accept my gratitude, now and always.
★例：
Directions:
After being involved in an accident, you were looked after by another person. Write a letter:
1) mentioning what happened in the accident,
2) telling the person about your recovery, and
3) expressing your thanks.
You should write with no less than 100 words on Answer Sheet 2. Do not sign your own name at the end of the letter. Use “Li Ming” instead. You do not need to write the address.
SAMPLE WRITING范文：
Dear John,
I am writing to thank you for looking after me after that unfortunate accident the other day, when I was knocked off my bike by a taxi. If it had not been for your assistance in giving me first aid and taking me to a nearby hospital, I fear that the consequences might have been much more serious.
The doctor says that my broken leg is healing well. In addition, the taxi company has agreed to pay my hospital bills. Everyone agrees that it was your quick-witted response in that emergency that has led to this satisfactory outcome.
Although nowadays many people talk about the need to be unselfish and to help others, we see very few people practicing what they preach. But you showed by your actions that you are an exception.
Yours sincerely,
Li Ming
道歉信
具体写作步骤：
首段：重述自己做错的事，表示歉意。
主体段落：说明道歉的具体原因，应尽量详细描述做错事的经过。写信时应该注意在申述理由时要照顾读信人的感受，切忌强词夺理。
结尾段：再次表明承认错误的态度，请求收信人的谅解。也可以提出补救的办法。
套话:
I would like to give you my apology for……
Please accept my sincere apology for……
I am indeed very sorry for what I said/did，but believe I had no intention to insult you.
Let’ s not put a little misunderstanding between us.
Please forgive me for a stupid choice of words.
I feel badly sorry about it and want you to know what happened.
Please accept my apologies for my oversight.
Please allow me to say sorry again.
I sincerely hope you can accept my apologies and understand my situation.
Once again，I’ m sorry for any inconvenience caused.
SAMPLE WRITING
Dear professor Jackson：
I am indeed very sorry that I missed the examination you gave on Moby-Dick last Wednesday. I feel badly about it and want you to know what happened.
On my way to class that day，I had a flat tire，and I had to go with the mechanic when he repaired it. It took me more than one hour to get it done. A copy of the bill is enclosed.
I sincerely hope you can accept my apologies and understand my situation. I would appreciate your allowing me to take a make up examination. I will come to your office during your office hour on Monday to discuss this possibility with you. Once again，I’ m sorry for any inconvenience caused.
Sincerely yours，
Li Ming
投诉信
（1）开头：自我介绍，交代投诉内容，表明本信的目的和要求。
（2）正文：说明情况，讲清利害，分析利弊。告诉对方你因此受到的伤害或不便，提出解决问题的建议，表明希望如何处理。
（3）结尾：表达希望问题得到迅速恰当解决的强烈愿望，希望尽快得到满意的答复。
投诉信经典句型归纳
（1）It is a great pity that we find there is something wrong with…
（2）Would you please let me know whether or not you can…as soon as possible?
（3）I hope that my problem will get your kind consideration.
（4）I am sure there are technical or manmade errors involved.
（5）l hope you can make an investigation into this matter as soon as possible.
（6）I hope I can get my refund as soon as possible.我希望能尽快收到退款。
（7）I am writing to make a complaint about…
（8）If it is not properly settled，I would ask you to give my money back, or I would complain to the concerned authorities.
（9）One annoying aspect of your service is…
（10）I have been pleased with your services for years，but now I feel very disappointed.
（11）I would like to draw your attention to the problem／fault…
（12）I am writing to inform you that I find…unsatisfactory.
（13）I wish to express my dissatisfaction／disappointment about…
（14）It would be highly appreciated if you could…
（15）I trust you will take my complaints seriously and…
SAMPLE WRITING
Directions:
You live in a room in college which you share with another student. You find it very difficult to work there because your roommate always has friends visiting. He/She has parties in the room and sometimes borrows your things without asking you.
Write a letter to the Accommodation Officer at the college and:
1） ask for a new room next term,
2） you would prefer a single room,
3） explain your reasons.
Dear Sir or Madam,
I am writing to express/ dissatisfaction/disappointment/concern regarding accommodation. I would prefer to move into a single room next semester, as I find the present sharing arrangement inconvenient.
I must explain that the reason for my dissatisfaction is my roommate’s inconsiderate behavior. For one thing, his friends are constantly visiting him; for another, he regularly holds noisy parties.
To solve this difficulty/ improve this situation/crack this hard nut, I hope to draw the attention of the authorities concerned. I am sure you will agree that the only solution for me is to move into a room of my own. Therefore, I would be grateful if you could find a single room for me, preferably not in the same building but as near to the college campus as possible.
Yours sincerely,
Li Ming