在撰写雅思咨询信时，你可以遵循以下结构和步骤：

开头

称呼：使用适当的称呼，如“Dear Professor Moss”或“Dear Sir/Madam”。

自我介绍：简要介绍自己，如“I am Sandy Lee, an undergraduate student of the department of Electrical and Computer Engineering.”

写信目的：明确说明写信的目的，例如“I am writing to enquire about…”（我想询问关于…的信息）。

正文

具体问题：详细阐述你想了解或咨询的问题，确保问题具体明确。

原因说明：如果有必要，可以简要说明你提出这个问题的原因。

时间要求（如果适用）：如果你需要某个动作在特定时间内完成，可以提出时间要求。

结尾

表达感谢：使用礼貌的表达方式表示感谢，如“I would be grateful if you could provide me with the information.”

期待回复：表达你期待收到回复的心情，如“I look forward to receiving the information at your earliest convenience.”

结束语：使用适当的结束语，如“Yours sincerely”或“Best regards”。

示例

Dear Professor Moss,

I am Sandy Lee, an undergraduate student in the department of Electrical and Computer Engineering. I am writing to enquire about the course requirements for the advanced programming course that I am currently enrolled in.

Could you please provide me with the detailed syllabus and any additional materials that might be useful for the course？ I am particularly interested in understanding the project requirements and the expected outcomes.

I would be grateful if you could send this information to me at your earliest convenience. Thank you for your time and assistance.

I look forward to your prompt response.

Yours sincerely,

Sandy Lee

请根据具体情况调整信的内容和语气。希望这能帮助你撰写出一份清晰、礼貌的雅思咨询信。