In high school, Chinese students study very hard to fight for the future college, while in western countries, students are spending time in taking all kinds of activities. Though students from different countries have different ways to spend high school time, they make the decision and take charge of their life. This is the best age to learn knowledge, their brain can remember words and numbers quickly. For making friends, they will probably meet their lifetime friends. During three years, besides gaining knowledge and making friends, they grow so fast, not only in body, but also in mind. Being independent is the main feature. They can make a lot of decisions without asking parents for help. When they are equipped themselves with basic skill, then they can better get used to the new environment, which is important for future life.