假设你叫李华，你将作为高三毕业生代表，根据以下要点在毕业晚会上用

My teachers and fellow students
In a couple of weeks, we’ll say goodbye to our mother school. How time flies! Now It’s really hard for me to put my feelings into words. The past three years has been really a wonderful journey with you guys, full of laughter and tears.
To make the journey safe and fruitful, our great teachers contributed their time, energy, love and the whole heart. Here, we are extremely grateful for all that you, dear teachers, have done for us.
It’ll soon be the time for us to depart, though unwillingly. But it is not the end. It just means that we’re going to begin a new journey.
Finally, on behalf of all the graduates present here, let me extend our sincere wishes for our mother school and respectable teachers. Thank you! (133 words)

本文是一篇演讲稿。也属于一篇半开放性的作文，内容贴近学生的实际生活，有一定的现实意义，在写作时要注意思想性。因为内容比较简单，在写作时要注意选词的合理性，要选择一些容易掌控的词，同时也要运用适当的连接词，使文章更流畅。