1.简介
感谢信是向对方表达谢意的书信。感谢对方的关心、支持、帮助或热情款待等。主要内容是说明感谢的事由并表示真诚的谢意。
2.写作流程及要素
说明写作目的(表示感谢)→说明事由→再次表示真诚感谢
3.选用语域注意事项
表达的感激之情要恰到好处，不要草率，也不要过于夸张。言辞应真挚、得体。建议在结尾尽量表达希望回报对方的愿望，显得更加真诚。
4.模板句型
首段：
thank you so much for...
i am writing to express my thanks for...
i am writing to extend my sincere/hearty gratitude/appreciation for...
i would like to convey in this letter my heartful thanks to you for...
i warmly appreciate your hospitality.
中间段：
thank you very much for the gift you sent me.ii's one of the most wonderful gifts i got on my birthday.
i am writing this letter to thank you for your warm hospitality accorded to my delegation and me during our recent visit to your beautiful country.i would also like to thank you for your interesting discussion with me which i found very informative and useful.
尾段：
thanks again.
again,i would like to express my warm thanks to you!please accept my gratitude.
thanks again and i hope that i will have the opportunity to return/repay your kindness.
i am looking forward to...
5.例文
directions:
while your family were on vacation,yourfriend cathy looked after your dog,smart.now you came back.write a letter to her to show your gratitude.
your letter should be no less than 100 words.you don't need to write the address.don't sign your own name at the end of the letter;use "li ming"instead.
参考范文：
dear cathy,
i am writing to express our heartfelt thanks for your taking good care of smart while we were on vacation.
he was such a happy dog when we got home.we knew he must have had lots of loving attention.when we picked him up from the kennel in your home he would whimper and carryon for hours.
you not only saved us some money,but also spared us the worry about him while we were away.your kind help is very appreciated,not only by smart,but also by our whole family.please accept our thanks again.
yours sincerely,
li ming