My name is Ann Wells and I’m a Grade 10 student at Lakeside High School. I’m an active person and I love sports. I’m curious about everything. I often ask questions, but I learn best by doing. My favourite subject is physics. Dancing and skating are my hobbies, and I also like to read short stories. I plan to become an engineer in the future.

这是2019年版高中英语新教材（人教版必修一p8）Welcome Unit的一个小段。

这里的 a Grade 10 student 是指“10年级学生”吧？但在我国，最多只有“九年级”啊。请哪位老师简单介绍一下英语国家基础教育的教育体制。谢谢！我知道这个问题比较麻烦，所以悬了10个鲜花。谢谢您！