60　its, it's和he's

1　its 是it 的物主代词，既可以作形容词性物主代词，意为“它的”，用作定语，后跟名词，也可以作名词性物主代词，相当于its+名词，用作主语、宾语等。

The table has lost one of its legs. 这张桌子掉了一条腿。

The sun gives its light and the moon reflects its . 太阳发光，月亮反光。

2　it's 是it is 的缩写形式，也可以是it has 的缩写形式，与its 完全不同。

This is my watch. It's a Swiss one. 这是我的手表，它是瑞士造的。

It's a bird. （正）那是一只鸟 。（=It is...）

Its a bird. （误）

It's rained for a whole day. （正）雨整整下了一天 。（=It has rained...）

Its rained for a whole day. （误）

提示

①注意下面的缩写式：she's=she is或she has, he's=he is或he has, that's=that is或that has, who's=who is或who has, what's=what is或what has, where's=where is或where has。

②注意，this is不可缩写为this's。