請根據下面表格中所提供的信息寫一篇有關中美高中教育的短文.詞數:100—120。
中國
美國
學制
三年
四年（大多數）
學生
學習努力，知識紮實
更加活潑，運用知識能力強
學習時間
每天約10小時
每天約8.5小時
課外活動
學校、班級組織的多
學生自己組織的多
其他
班級和教室固定
班級和教室不固定，到老師辦公室上課
生詞：課外活動 extra curricular
範文：
There are differences between high school in China and that in the United States. High school in China lasts three years, while in most US states four years. In China, students are in fixed classes and classrooms. Every day they study hard for about 10 hours and have a solid knowledge. But in the United States, students don’t have fixed classes or classrooms and they go to their teachers’ offices for classes. They spend about 8.5 hours on study a day. They are lively and good at activities organized by themselves. However, in China, the students’ extra curricular activities are mostly organized by schools and classes.