谁能帮我纠正一下这份英语自我介绍？麻烦了……

错了.
There are three people in my family:my parents and me应为
There are three people in my family:my parents and I
（我是初中毕业生，我们老师专门说过这个问题的）

I like play badminton and computer games. 应为
I like playing badminton and computer games.

My dream is a author. 应为
My dream is to be a author.

好了，改完了，

1 “喜欢”——用 like to do sth 或者 like doing sth
2 “My dream is a author.”你的这句话的意思是“我的梦是作家”！（“梦 是 作家。”）
3 “成为”用“become”或者“turn into”