引言
在英语学习中，“average”一词常与不同介词搭配使用，表达“平均水平以上/以下”或“通常情况下”等含义。 正确使用这些搭配不仅能提升语言准确性，还能让表达更自然流畅。
常见 average 介词搭配
1. on average
表示“平均而言”、“通常情况下”，用于描述一般情况或统计平均值。
• On average, people spend about 3 hours a day on their phones.
• Students sleep 7 hours on average during exam week.
• Students sleep 7 hours on average during exam week.
2. above average
表示“高于平均水平”，常用于描述能力、成绩、表现等。
• Her math skills are well above average.
• The restaurant received above-average ratings for service.
• The restaurant received above-average ratings for service.
3. below average
表示“低于平均水平”，多用于指出不足或需要改进之处。
• His test score was slightly below average.
• Customer satisfaction this quarter was below average.
• Customer satisfaction this quarter was below average.
4. around / near average
表示“接近平均水平”，语气较为中性。
• The temperature this month is around average for July.
• His performance was near average—nothing special, but not bad either.
• His performance was near average—nothing special, but not bad either.
使用注意事项
- on average 是固定搭配，不可说 “in average” 或 “at average”。
- above/below average 通常作表语或定语，不加冠词（不说 “above the average” 除非特指某一具体平均值）。
- 在正式写作中，避免将 “average” 与 “normal” 混淆——“average” 是统计概念，“normal” 是规范或常态概念。
小测验（JavaScript互动）
请选择正确的搭配完成句子：
The student's writing ability is ______.