一、it's的含義及用法

　　it's即it is的縮寫形式，是it is/it has的常用口語形式，意為它是。

　　例句：It's the best news I've heard in a long time.

　　這是我很久以來聽到的最好消息。

　　It's been such a long time since I played.

　　自我上次演出以來已有很長時間了。

　　It's among the poorer countries of the world.

　　它是世界上的貧窮國家之一。

　　It's important to try and make something of your life.

　　在一生中有所成就是很重要的。

　　It's time to give serious consideration to this matter.

　　到了認真考慮這一問題的時候了。

　　It's been two weeks now since she called.

　　她到現(xiàn)在已經(jīng)有兩個星期沒來電話了。

　　It's known as the most dangerous part of the city.

　　人們都認為那是市內(nèi)最危險的地段。

　　二、its的含義及用法

　　its作為形容詞性物主代詞，意思為它的，他的，她的。

　　例句：Turn the box on its side.

　　把箱子側(cè)著立起來。

　　Have you any idea of its value?

　　你知道它的價值嗎？

　　The company needs to improve its competitive edge.

　　公司必須提高它的競爭力。

　　The school is the first of its kind in Britain.

　　這是英國同類學(xué)校中最早的一所。

　　Its brain is small in relation to its body.

　　和它的身體相比，它的大腦很小。

　　The car is in remarkably good condition for its age.

　　就車齡而論，這輛車的狀況好極了。

　　My computer seems to have a mind of its own!

　　我的電腦好像也有它自己的想法！