考研作文中写邀请信时，可以遵循以下结构和要点：
开头
使用正式称呼，如“Dear Professor”或“Dear Mr./Ms.”。
简短问候，表达诚挚的邀请意愿。
邀请目的
明确说明邀请对方参加的活动或参观的地方。
简述邀请的理由，突出对方的重要性或活动的吸引力。
活动详情
介绍活动的主题、内容、时间和地点。
详述活动的流程、安排及注意事项。
期待与感谢
表达期待对方接受邀请，并表示诚挚的感谢。
可以适当使用礼貌的结束语，如“Looking forward to your reply”或“Thank you for considering our invitation”。
落款
签上自己的名字，并注明日期。
示例
邀请信
Dear Professor Smith,
I hope this email finds you well. As the chairman of the organizing committee for the upcoming International Innovation Competition, I am delighted to extend a formal invitation to you to participate in this prestigious event.
The competition, which will be held on our university campus on April 15th, aims to bring together the brightest minds from around the world to showcase their innovative ideas and solutions. We believe your expertise and experience would greatly contribute to the success of this event.
The event will kick off with an opening ceremony at 9:00 AM, followed by a series of workshops, panel discussions, and networking opportunities. We have arranged for all participants to have access to our state-of-the-art facilities and will provide all necessary resources for their comfort and convenience.
We sincerely hope you can join us and share your insights with the international community. Your participation would be an honor for us all.
Please let us know if you are able to attend at your earliest convenience. We look forward to welcoming you to our university and to an engaging and productive event.
Thank you for considering our invitation. We eagerly await your positive response.
Sincerely,
[Your Name]
Chairman, International Innovation Competition Organizing Committee
[Your University]
[Date]