一、作文模板
开头段：自我介绍，表达感谢
Dear ______（收信人称呼）,
I am ______（自我介绍）. I am writing to express my sincere gratitude for ______（感谢的事由）.
例如：Dear Professor Smith,
I am a student from your English class. I am writing to express my sincere gratitude for your help and support during the past semester.
中间段：具体描述帮助或支持的内容
Your ______（具体帮助）has made a significant difference in my ______（受影响的方面）. For example, ______（举例说明）.
例如：Your guidance and encouragement have made a significant difference in my academic performance. For example, you always took the time to explain difficult concepts and provided valuable feedback on my assignments.
中间段：说明感谢的原因和影响
Thanks to your ______（具体帮助），I have ______（具体成果或变化）. This has not only improved my ______（具体方面）but also boosted my confidence.
例如：Thanks to your guidance, I have improved my writing skills significantly. This has not only improved my grades but also boosted my confidence in expressing myself in English.
结尾段：再次表达感谢，期待未来有机会回报
Once again, I want to say thank you for everything you have done. I hope I can have the opportunity to repay your kindness in the future.
例如：Once again, I want to say thank you for everything you have done. I hope I can have the opportunity to repay your kindness in the future.
结束语：
Best regards,
Your Name
例如：
Best regards,
Li Hua
 
二、真题示例
题目：Write a letter to your friend to thank him/her for the help during your recent exam preparation.
范文：
Dear Alice,
I hope this letter finds you well. I am writing to express my sincere gratitude for all the help you provided during my recent exam preparation.
Your willingness to share your study materials and notes was incredibly generous. For example, the detailed notes you gave me on the history chapter were extremely helpful. They helped me understand the key events and timelines much better.
Thanks to your help, I was able to pass the exam with a good grade. This has not only improved my academic record but also given me the confidence to tackle future challenges. I truly appreciate your kindness and support.
Once again, thank you so much for everything. I hope I can return the favor someday.
Best regards,
Li Hua
 
三、中文翻译解析
翻译：
亲爱的Alice：
希望这封信能让你安好。我写这封信是为了感谢你在最近考试准备期间给予我的所有帮助。
你愿意分享你的学习资料和笔记真是太慷慨了。例如，你给我的历史章节的详细笔记非常有帮助。它们帮助我更好地理解了关键事件和时间线。
多亏了你的帮助，我顺利通过了考试，并且取得了不错的成绩。这不仅提高了我的学术记录，也让我更有信心面对未来的挑战。我真心感谢你的善良和支持。
再次感谢你所做的一切。我希望有一天我能回报你的帮助。
此致，
敬礼！
李华
解析：
开头段：通过自我介绍和表达感谢，引出感谢的事由，让收信人明确信件的主题。
中间段：具体描述对方提供的帮助或支持，通过举例说明，使感谢显得真诚且具体。
中间段：说明感谢的原因和帮助带来的积极影响，增强感谢的深度和感染力。
结尾段：再次表达感谢，并表达希望未来有机会回报对方的愿望，使信件显得礼貌且诚恳。

四、写作技巧
格式规范：感谢信的格式要规范，包括称呼、正文、结束语和署名。
明确感谢：开头段要清晰地表达感谢，让收信人明白感谢的事由。
具体事例：中间段描述帮助时，尽量具体、详细，通过举例说明，使感谢显得真诚。
积极影响：说明帮助带来的积极影响，增强感谢的深度和感染力。
礼貌诚恳：结尾段要再次表达感谢，并表达希望未来回报的愿望，使信件显得礼貌且诚恳。