(1)sth can give students team-spirit and teach them how to cooperate with others. Because in those activities, students usually need to cooperate with others in order to get good achievement.

　　Sth 可以赋予学生们团队精神，并教会他们学会与人合作。因为在这些活动中，学生通常需要相互合作目的是得到提高。