point system on small quotas

例句：

1. 1. The teacher used a pointsystem to motivate the students.
   老师使用了一个点制度来激励学生。
2. 2. Thecompany introduced a new pointsystem for its employees.
   公司为员工引入了一个新的积分制度。
3. 3. Thestudent scored high in the exam and receiveda point system reward.
   学生在考试中得分很高，获得了积分奖励。