初中英文自我介绍30秒女士们先生们,大家中午好,我是来自初三xx班的xxx,我的爱好是打篮球,我喜欢和朋友交往,我明天急

Ladies and Gentleman,good afternoon .I study in class xxxx ,grade xxxx. （ I define myself as a boy who like playing basketball and making friends. That's all Thank you ）
（ 如果你觉得高中不会这种从句的话 可以说 I like playing basketball and making friends that's all. Thank you

噢 要三十秒啊 你可以加多一些 like I am good at 什么科目啦.或者 讲讲my dream is to be a doctor啦 之类的梦想 凑着凑着就三十秒了 中间停顿的时候加一些 um you konw之类的话 显得你比像在聊天一样 比较放松