【enough的用法】“Enough”是一个常见的英语单词,常用于表达“足够”的意思。它在句子中可以作形容词、副词或名词使用,具体用法因语境而异。以下是关于“enough”的常见用法总结。
一、基本用法总结
类型 | 用法 | 例句 | 说明 |
形容词 | enough + 名词 | I have enough money. | 表示“足够的钱”。 |
副词 | 动词 + enough | He ran fast enough. | 表示“跑得够快”。 |
名词 | enough (of) + 名词 | I ate enough of the cake. | 表示“吃了足够的蛋糕”。 |
置于形容词/副词后 | 形容词/副词 + enough | She is old enough to go alone. | 表示“她足够大可以独自去”。 |
否定结构 | not enough | There isn't enough time. | 表示“时间不够”。 |
比较级结构 | as...as... enough | He is as tall as his brother, but not tall enough to play basketball. | 表示“虽然一样高,但不够高”。 |
二、重点语法点解析
1. enough 作形容词时
- 通常放在名词前,表示“足够的……”。
- 例:We have enough food for the party.
- 有时也可放在名词后,但更常见于书面语中。
- 例:I have food enough for the party.
2. enough 作副词时
- 通常放在动词之后,修饰动词。
- 例:He spoke loudly enough for everyone to hear.
- 也可以放在形容词或副词之后,表示“足够……”。
- 例:She is kind enough to help me.
3. enough 作名词时
- 通常与 of 连用,表示“足够的数量或程度”。
- 例:There is not enough information to make a decision.
4. not enough 的否定形式
- 表示“不够”,常用于否定句中。
- 例:There is not enough water for the plants.
5. as...as... enough 结构
- 用于比较两个事物,强调其中一个“不够”。
- 例:He is as strong as his brother, but not strong enough to lift that box.
三、常见错误提醒
- 错误:He is enough old to drive.
正确:He is old enough to drive.
(enough 应放在形容词后)
- 错误:She runs enough fast.
正确:She runs fast enough.
(enough 应放在副词后)
- 错误:I don’t have enough money.
正确:I don’t have enough money.(这个是正确的,但要注意上下文是否合理)
四、小结
“Enough”是一个灵活的词,根据其在句中的位置和功能,可以是形容词、副词或名词。掌握它的不同用法有助于提高英语表达的准确性和自然度。通过多读多练,可以更好地理解和运用这一词汇。