用to还是用for?

1、to表示主观,for表示客观。

He is good to her.

This book is good for children.

前句是说“He”主观上对她态度友好,后句是说这本书客观上对孩子们有益。

It was a useful lesson to/for him.

这句话与之前两个例句不同,不能直接从句子的主语判断主客观关系。该句中用to是表示说话人认为“对他有用”,用for表示事实上无可争议的“有用”。

2、to往往和贬义词连用,而for则多与褒义词连用。如:

The poisonous waste may do great harm to the things around us.

Can you do a favor for me?

3、to着重表示“全体”关系,而for侧重于表示“部分关系”。

Dustmen’s job is important and necessary to all of us.

His special work is very important for the blind children.

4、与动词不定式短语连用时,只能用for/of,即构成动词不定式的复合结构。

5、一般说来,在句首时要用to,如:

To my brother, these stamps are extremely valuable.

6、以上说的都是“对……来说”之意。在其他场合有不同含义,如:

I’ll write to/for you.我给/替你写信。

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