考研上岸书信的写作应当包含以下几个要点：
开头称呼
根据收信人的不同，可以使用“Dear [姓名]”，“Dear Sir/Madam”，或者“To Whom It May Concern”等称呼。如果题目中明确了收信人，应当使用题目中提供的具体姓名或称谓。
开场寒暄
简短的问候，如“I hope this letter finds you well.”（希望你一切安好）。
表达感谢
如果收到的是祝贺信，应当表达感谢，例如“I am writing to express my heartfelt gratitude for your congratulations.”（我想表达我对您祝贺的衷心感谢）。
祝贺内容
表达对方考研成功的喜悦和祝贺，例如“I am thrilled to hear that you have successfully passed the postgraduate entrance examination.”（听到你成功通过研究生入学考试，我感到非常激动）。
分享感受
可以简要分享自己考研的心路历程和感受，例如“The journey was long and challenging, but every step of the way was worth it in the end.”（这段旅程漫长而充满挑战，但最终的每一步都是值得的）。
鼓励与祝福
对对方未来的学习和生活给予鼓励和祝福，例如“I am confident that you will continue to excel in your academic pursuits and achieve great things.”（我相信你会在学术道路上继续取得卓越成就）。
结束语
使用礼貌的结束语，如“Yours sincerely,”或“Best regards,”。
署名
在信件的右下角签上自己的名字。
```
Dear [姓名],
I hope this letter finds you well. I am writing to express my heartfelt gratitude for your congratulations on your recent success in the postgraduate entrance examination.
The journey was long and challenging, but every step of the way was worth it in the end. I am thrilled to hear that you have successfully passed the exam and will be starting this new chapter in your academic journey. I am confident that you will continue to excel in your studies and achieve great things.
Please know that my thoughts and best wishes are with you as you embark on this exciting new phase of your life. May your future endeavors be filled with joy, success, and fulfillment.
Yours sincerely,
[你的名字]
```
希望这些建议能帮助你写出一封温馨而有力的考研上岸书信。