以下是一份小学教师节英语贺卡的范文：

Dear [Teacher's Name],

On this special day, I want to take a moment to express my gratitude for all that you do. You are not only a great teacher, but also a wonderful friend and mentor.

Thank you for always being there to help me with my studies, answer my questions, and encourage me to do my best. Your dedication and hard work have made a real difference in my life, and I am grateful for all that you have done.

On this special occasion, I would like to wish you a very happy Teacher's Day and a wonderful year ahead. May your teaching continue to inspire and empower students like me to reach their full potential.

Thank you again for all that you do, and I wish you all the best on this special day.

Sincerely,

[Your Name]