在撰写考研英语复试的致谢信时，应当注意以下几个要点：
礼貌和真诚：
感谢信的用语应当礼貌且真诚，以表达你对对方帮助的感激之情。
明确目的：
在信的开头明确写信的目的，即表达感谢。
详细说明原因：
在信的第二段详细说明对方给予的帮助及其对你复试准备的重要性。
再次感谢：
在信的结尾再次表示感谢，可以提出希望未来能够回报对方的友谊或帮助。
```
Dear [考官姓名],
I am writing to express my heartfelt gratitude for your assistance during my recent English entrance examination for the Master's degree program. Your guidance and support have been invaluable, and I am certain that they have contributed significantly to my success.
Your expertise in English language teaching and your dedication to helping students achieve their goals have been an inspiration to me. The detailed feedback and constructive criticism you provided during my preparation sessions were instrumental in identifying my strengths and areas for improvement. This has not only helped me enhance my language skills but also boosted my confidence in facing the examination.
I am deeply indebted to you for taking the time to review my essays and provide personalized suggestions. Your insights and recommendations have been a guiding light, ensuring that my writing was of the highest standard. I am confident that these improvements will be evident in my performance during the actual exam.
Thank you once again for your unwavering support. I look forward to the opportunity to express my gratitude in person and to further discuss my future academic pursuits with you.
Warm regards,
[你的名字]
```
请根据实际情况调整信中的内容，以确保信件的个性化和真诚性。祝你复试顺利!