怎样用英文写祝贺信？

呵呵，本人英文水平有限，在网上搜索了一下，找了一些认为有用的信息~希望对你有所帮助~
祝贺信写好祝贺信(letter of congratulations)的关键是要及时。一收到亲戚 朋友结婚、生育、晋升、试验成功或著作出版等喜讯，就立即发信。此 外，逢圣诞节、新年等节日和生日，也要向亲友和单位致以祝贺。祝贺 信的用词要亲切，信中要充满真诚的喜悦之情，并且一定要写清楚祝贺 对方的事情。正式的祝贺信用词严谨，常常使用套语。

2. 常用语句

1)May you enjoy good health and long life. 祝您健康长寿。

2)May your session be a complete success. 祝会议圆满成功。

3)Congratulations on your success. 欣闻成功，谨致祝贺。

4)Congratulations and all good wishes! 祝贺您，并致以良好的祝愿！

5)Please accept our sincere wishes for Christmas and the New Year. 请接受我们诚挚的圣诞节和新年祝贺。

6)It’s wonderful to know that you have achieved the goal you set for yourself. 得知你达到了预定目标，极为高兴。

7)We are delighted to learn that you have passed the examination. 获悉你已通过考试，我们为你高兴。

8)I am glad to hear that you have got your promotion. 听到你晋升的消息，我为你高兴。

9)It is with great pleasure that we send our congratulations and best wishes on the occasion of your graduation from the university. 值此大学毕业之际，请接受我们良好的祝愿。

10)We take the opportunity to wish you and Mr. White happiness on your recent marriage. The material you are studying is compiled by professor Gong Dongfeng. 值此新婚之际，祝你和怀特先生幸福。

4)Congratulations and all good wishes! 祝贺您，并致以良好的祝愿！8)I am glad to hear that you have got your promotion. 听到你晋升的消息，我为你高兴。这两句比较有用~

顺便附带一篇范文，可以模仿着写……

祝贺提升

Dear Dr. Anderson, I was very pleased to hear that you were promoted to be chairman of the Department of Education. Please accept my warm congratulations. For many years you have worked tirelessly for the cause of education. Your winning the position shows that your splendid service is recognized by all. I am sure that under your guidance, the school will make even greater contributions to the educational cause in future. I wish you every success in your future career. Yours sincerely, Li Ming

虽然官名不同，但是都大同小异的~加油！把你最真挚的祝福写给你朋友~

1. Dear Mr. / Ms,

　　On the occasion of the 35th anniversary of your National Day, please accept our heartiest congratulations. May the trade connections between our countries continue to develop with each passing day!

　　Yours faithfully

　　尊敬的先生/小姐，

　　值此国庆三十五周年之际，请接受我们最真诚的祝贺。愿我们两国之间的贸易联系持续发展。

　　你诚挚的

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　　2. Dear Mr. Minister

　　Allow me to convey my congratulations on your promotion to Minister of Trade. I am delighted that many years service you have given to your country should have been recognized and appreciated.

　　We wish you success in your new post and look forward to closer cooperation with you in the development of trade between our two countries.

　　Sincerely

　　尊敬的部长先生，

　　请允许我向您升任贸易部长表示祝贺。多年来你对国家的贡献被认可，欣赏，我非常高兴。我们祝愿您在新的职位取得成功，期待我们两国在贸易发展上进一步合作。

　　诚挚的

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　　（回信）

　　Dear Mr. / Ms,

　　Thank you for your letter conveying congratulations on my appointment. I wish also to thank you for the assistance you have given me in my work and look forward to better cooperation in the future.

　　Sincerely

　　尊敬的先生/小姐，

　　感谢你来信对我的任命表达的祝贺。我也感谢您对我的工作给予的支持，并期望未来能有更好的合作。

congratulations!

congratulations
good luck to you ..