学期末的项目展示是对学生整个学期学习成果的总结性评估。

The end-of-term project presentation serves as a ___summative assessment of students' learning throughout the semester.

连续几年的小进步产生了累积性的效果，使他最终获得了成功。

The ___summative effect of small improvements over several years eventually led to his success.