574　recognize和know from

① recognize是及物动词。

（1）表示“辨认，认出（曾见过的人或物）”，是建立在原来认识的基础上的。

I recognized him without difficulty. 我毫不费力地认出了他。

She has changed so much that I can hardly recognize her. 她变化那么大，我几乎认不出来了。

（2）表示“认可，承认（government，country，theory），认识到”，结构为：

recognize sth.

recognize sb. to be

recognize sb. as

recognize+that从句

They don't recognize the new government. 他们不承认新政府。

I recognize her to be cleverer than I am. 我承认她比我聪明。

They recognized him as the best student in the class. 他们承认他是班上最好的学生。

He recognized that he had made mistakes. 他承认他犯了错误。

We recognized that we have to overcome many difficulties. 我们认识到必须克服许多困难。

提示

recognize表示“认出（熟悉的人或物），认识到（某种价值、合法性、真实性）”，为非延续性动词；而know则表示“认识”，为延续性动词。比较：

我认识他多年了。

I have recognized him for many years.

I have known him for many years.

② know…from表示“认出，区分，辨认”。

They are twins and it's almost impossible to know one from the other. 他们是双胞胎，要分清他们俩几乎是不可能的。