关于感恩父母、老师和同学的英语作文，结合80字左右的篇幅要求，可参考以下结构与内容：

一、感恩父母

父母是生命中最重要的人，他们用无私的爱和辛勤的付出支持我们成长。可以结合具体事例，如父母的教育、生活照顾等，表达感激之情。

示例段落

"Parents are the greatest teachers in life. They not only provide物质 support but also shape our values and character. I am grateful for their unwavering encouragement and the sacrifices they make for my well-being. On this special occasion, I want to say: Thank you for being my rock and guiding light"

二、感恩老师

老师是知识的传递者，他们用智慧和耐心帮助我们探索未知。可以提及老师在学业、人生指导等方面的贡献。

示例段落

"Teachers are the beacons of knowledge. They illuminate our path and inspire us to pursue our dreams. I am thankful for your guidance in mastering English and for fostering a love for learning. Your dedication and passion have made a profound impact on my life"

三、感恩同学

同学是成长路上的伙伴，共同的学习经历和友谊让人珍惜。可以回忆合作学习、互相鼓励的瞬间。

示例段落

"Classmates are the companions who share our journey. We learn from each other and celebrate together. I am grateful for the supportive moments during challenging times and for the laughter that brightens our days"

四、结构建议

开头：

用比喻或名言引出主题，如"Like the rain that nourishes the earth, your love has shaped me"

主体：

分段落表达对父母、老师和同学的感激，每段3-4句

结尾：

总结全文，表达对未来关系的期许，如"May our bonds of gratitude grow stronger with time"

五、注意事项

语言表达：使用"be grateful for"、"have a profound impact on"等地道表达

篇幅控制：每部分建议2-3句话，避免冗长

个性化：结合自身经历调整内容，使文章更真实感人

通过以上结构与内容参考，可撰写出符合要求的感恩作文。