enough的用法
【enough的用法】“Enough” 是一个常见的英语副词和形容词，常用于表达“足够”的意思。它在句子中的位置和用法较为灵活，掌握其正确用法有助于提高英语表达的准确性。
一、enough 作为形容词的用法
当 “enough” 作为形容词使用时，通常放在名词前，表示“足够的数量或程度”。
例句：
- I have enough money to buy a new phone.
- There is enough time to finish the work.
注意：
- “enough” 放在名词前，不能放在名词后。例如，“I have money enough” 是错误的。
二、enough 作为副词的用法
当 “enough” 作为副词使用时，通常放在形容词或副词之后，表示“足够地”。
例句：
- She ran fast enough to win the race.
- The room is bright enough for reading.
注意：
- “enough” 不能放在动词前面，除非是情态动词（如 can, could, should 等）之后。
错误：
- He speaks enough clearly.
- 正确：He speaks clearly enough.
三、enough 的其他用法
1. enough to do sth
表示“足够……去做某事”。
- He is old enough to drive.
- She is strong enough to lift the box.
2. not enough
表示“不够”，后面可接名词或形容词。
- There is not enough food for everyone.
- He is not old enough to vote.
3. as...as enough
表示“和……一样足够”。
- This book is as interesting as enough.
- She is as smart as enough to understand it.
四、总结表格
| 用法类型 | 位置 | 举例 | 注意事项 |
| 形容词 | 名词前 | enough money | 不可放于名词后 |
| 副词 | 形容词/副词后 | fast enough | 不可放于动词前 |
| enough to do sth | 动词前 | old enough to drive | 后接动词原形 |
| not enough | 名词/形容词前 | not enough time | 表示不足 |
| as...as enough | 中间 | as interesting as enough | 比较结构 |