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of和for的介词用含义辨析

来源:www.sheyuyi.com 2025-03-12

1)Itis kind of you to help me.

2)Itis important for you to do come here.

请教老师:有2个问题一直困扰着我:

1)我了解of和for的用法不同。第二句用for sb引出后面不定式的逻辑主语,但对第一句来讲,是否应该理解成:不定式的逻辑主语是of引出的?

一般不定式的逻辑主语只可以用for引出啊,这里为何可以用of引出呢?

2)另一个问题长久以来一直困扰着我,就是为何大多数形容词后面都是接不定式,而不可以接动名词呢?这到底是什么原理呢?

比如It isunusal to do sth, 但:可否说成It isunusual doing sth 呢?

比如It isfantastic to do sth, 但:可否说成It isfantastic doing sth呢?

比如It isgreat to do sth, 但:可否说成It isgreat doing sth呢?

这三句假如都可以,“含义”到底是什么差别?我想了解为何?

谢谢老师!

1)It is kind of you to help me.

2)It is important for you to do come here.


【答】1)第二句用for sb引出后面不定式的逻辑主语。在“ It is kind of you to help me.”这个句子中, of you to help me是形容词的补足成分。这种结构一般用于一些具备评价人物行为的形容词后面,容易见到的这种形容词有 kind, nice, good, careful, craze, brave, foolish, wise, stupid, rude, impolite,clever 等。


2)另一个问题长久以来一直困扰着我,就是为何大多数形容词后面都是接不定式,而不可以接动名词呢?这到底是什么原理呢?

比如It is unusal to do sth, 但:可否说成It is unusual doing sth 呢?

比如It is fantastic to do sth, 但:可否说成It is fantastic doing sth呢?

【答】这与词汇搭配需要有关,通过在词典中查阅有关的形容词就能了解能否用某种结构。

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