定义 / 说明
比较级用于比较两个人、事物或地点。短形容词常用 -er，长形容词常用 more。这样我们可以表达某物在某个特征上“更……”，如 bigger、cheaper、more comfortable。比较级在日常表达选择、描述和简单观点时非常实用。
关键规则
- 许多短形容词用 -er：small -> smaller, cheap -> cheaper。
- 许多长形容词用 more：more comfortable, more interesting。
- 用 than 引出比较对象：My bag is bigger than yours.
- 部分形容词有拼写变化：big -> bigger, happy -> happier。
- 比较级用于比较“两者”，不是单独描述一个对象。
例句
- This bag is cheaper than that one. - 这个包比那个便宜。
- My room is bigger than yours. - 我的房间比你的大。
- She is younger than her brother. - 她比她哥哥年轻。
- This chair is more comfortable. - 这把椅子更舒服。
- Today is hotter than yesterday. - 今天比昨天更热。
常见错误
- ❌ This is cheap than that. -> ✅ This is cheaper than that.
- ❌ My room is more big. -> ✅ My room is bigger.
- ❌ She is younger that me. -> ✅ She is younger than me.
提示
- 简单记法：短形容词常用 -er；较长形容词常用 more。