我校学生会组织以“我的中国梦”为主题的英语演讲比赛。假设你是李华，请以“Dream Lighten My Life”为题

Ladies and Gentlemen,
Good afternoon! I’m Li Hua, aged 17, a sunny and outgoing middle school student as you see. Today, it’s my honor to stand here giving a speech with the title of “Dream Lighten My Life”.
Everyone embraces different dreams to lighten or to contribute to the great rejuvenation of the Chinese nation. When it comes to me, I’ve been dreaming of becoming a doctor since childhood. When I see people suffering and dying of illnesses, I made up my mind to help the sick and cure them of their diseases. I hope to see a world where there is no cancer, no Aids, no fatal diseases.
Admittedly, to pursue and fulfill my dream, I will always keep it in mind so as to try most to be admitted by a key medical university, thus learning the essential knowledge and accumulating a great deal of experience.
This is my dream, lightening my life far ahead. Now I believe I have one more step to close to it, right?
Thank you for your listening!

这是一篇演讲稿：主题是我的中国梦。演讲标题为“Dream Lighten My Life”. 首先确定演讲的时态以现在时为主。用第一人称。根据内容要求：先是自我简介，然后说出你的演讲主题。然后陈述你自己的梦想，（这个梦想一定是积极的，有意义的，跟中国梦一致）并且阐明原因。接下来是实现自己梦想的具体做法，对于高三学生来说，至少应该心怀梦想，努力学习，进入理想的大学，为实现梦想做最大的努力。有必要表明自己对于实现自己梦想的信心。最后，表示感谢。
【亮点说明】
文中用了许多高级词汇，如：embraces, ighten,  contribute to the great rejuvenation, admittedly, pursue , fulfill,, essential, accumulate 等，句型：When it comes to me, 定语从句：where there is no cancer, no Aids, no fatal diseases 时态：’have been dreaming of, 短语：make up one’s mind, cure sb. of sth., keep sth. in mind, 使文章的表达流畅，自然，积极，健康。