用英语介绍生日时，可以使用以下结构：

基本句型

- 陈述式：

- "My birthday is on [日期]".

- "I was born on [日期]".

示例：

- "My birthday is on October 1st."

- "I was born on December 25th."

扩展描述

可以添加时间、地点或活动细节：

- "On my birthday, my family has a big cake party."

- "I received a gift from my friend."

示例：

- "I was born on October 1st, and my family celebrated with a cake and games."

特殊场景

若生日有特殊意义，可补充说明：

- "It's my 10th birthday, and I got to go to the amusement park."

示例：

- "On my 10th birthday, I was taken to the amusement park with my family."

注意事项

日期格式建议使用"on"加具体日期（如October 1st），而出生时间可用"at"加时间点（如at 8:00 AM）。- 若强调出生时间，完整表达为：

"I was born on October 1st at 8:00 AM."

可根据个人经历调整内容，例如描述家庭聚会、礼物或特殊活动。