of one's own与one's own

有一读者问: He had already built a small chemistry lab of his own中的of his own与his own是否一样?

of one's own 与one's own在意义上无甚区别,但用法不同。 即以上述所引的句子为例,则只能用of his own, 不可用his own,因为前者须置于名词之后。如用his own,全句须改写为:

(1)He had already built his own chemistry lab.

但这样一来,那个形容词small就无着落了。

另外,of one's own有“完全属于自己”的含义,语气一般较强,如:

(2)She has a mind of her own .

(3)We've got a house of our own now.

(4)Has he a car of his own ?