the teacher gives more homework to the student who has had grades instead of allowing him to cut that down the teacher assigns more homework to the low-scoring student instead of allowing him to cut that down
老师给成绩好的学生布置了更多的作业，而不是让他减少作业;老师给得分低的学生布置了更多的作业，而不是让他减少作业
以上为机器翻译结果，长、整句建议使用 人工翻译 。