以下是50字左右的英语自我介绍模板，分三个版本供参考：

一、学术背景型

Hello, I am [姓名] from Shanghai Jiao Tong University. I am majoring in Automation and have a strong interest in industrial engineering. I am writing to apply for your graduate program 。

二、兴趣爱好型

Hi, everyone! My name is [姓名] and I'm 19 years old. I love basketball, football, and playing chess. I also enjoy reading books and spending time on the internet. My family consists of my parents and me, and I cherish our relationship 。

三、基础信息型

Good morning! My name is [姓名] and I'm in [年级][班级] at [学校]。 I am [身高/性格描述] and have a passion for [兴趣科目]。 My favorite subject is [科目名称] because [原因]。 My dream is [理想目标] 。

注意事项 ：请根据实际需求选择模板，注意语法和拼写准确性。若需个性化内容，可补充具体经历或成就。