it作形式主语或形式宾语时是代词吗

问题描述

it用作代词时意思是“它”。如：

I threw a ball to her and she caught it. 我把球扔给她，她接住了它。

Eat your soup. It’s good for you. 把汤喝了，（它）对你有好处。

I’ll need to adjust the clock. It’s slow again. 我要把时钟拨一下。它又慢了。

请问一下，it用作形式主语和形式宾语时，它也是代词吗？

It’s best to go by bus. 最好坐公共汽车去。

It is getting more and more difficult to find a job. 找工作越来越难了。

I find it difficult to talk to you. 我觉得同你谈话很难。

He feels it his duty to help others. 他认为帮助别人是他的责任。

老师答疑

龙老师：

查查词典就知道了。比如《牛津高阶英汉双解词典》第四版的 it 词条，在 pron 词性下面有例句（it 或为形式主语，或为形式宾语）：

It appears that the two leaders are holding secret talks. 两位领导人好像在举行秘密会谈。

Does it matter what colour it is? 是什么颜色有关系吗?

It's impossible (for us) to get there in time. （我们）不可能及时赶到那里。

It's no use shouting. 叫喊并没有用。

She finds it boring staying/to stay at home. 她觉得待在家中很无聊。

I find it strange that she doesn't want to travel. 她竟不想旅游, 我觉得很奇怪。