专升本英语复习中有一些特别的语法常识是需要考生留意的，它通常是英语考试中的常考点。下面速成就为大家整理了关于it的一些特别语法常识汇总，从速保藏吧！

1．it用作方式宾语时，会将真实的宾语移至句末，其根本结构为“动词+it+宾语补足语+不定式(动名词或从句)”。可是以下几种方式宾语是比较特别的常考点：

（1）动词 + it + 介词短语+ that-从句（此结构中的动词常见的有take it for granted, bring it to sb’s attention, owe it to sb）。如：I owe it to you that I am still alive. 幸亏有你我才依然活着。

（2）动词 + prep + it + that-从句（此结构中的动词常见的有see to, look to, insist on, stick to, depend on, answer for等）。如：I can’t answer for it that he will come. 我不能确保他会来。如You can put it that it was arranged before. 你可以说这是曾经机构的。

（4）动词 + it + when (if)-从句（此结构中的动词常见的有 enjoy, hate, love, like, dislike, appreciate, prefer 等。）。如：We really appreciate it when she offered to help. 她来帮助了，咱们非常感谢。

2．it用作方式主语时需注意以下几个特别句式：

（1）it follows that…。如：He is wrong, but it does not follow thatyou are right. 他错了，但并不能由此揣度你是对的。

（2）it seems (appears) that…。如：It appears that we may be mistaken. 看来咱们或许弄错了。可是，英语一般不说it looks that…，可改用it looks as if…。

（3）it happens (occurs) that…。如：It didn’t occur to him that she would refuse his invitation. 他没有想到她会回绝他的约请。

3．含it的9个常用特别句型

（1）It is a waste of time /money doing sth.例如：It’s a waste of time your talking to him. 你和他谈是浪费时间。

（2）It’s one’s turn to do sth.例如：It’s my turn to clean the classroom. 是轮到我清扫教室的了。

（3）It is said/ reported/ believed/ understood that…例如：It is said that he has joined the Party. 听说他现已入党了。

（5）If it were not for…例如：If it were not for your help, I would still be homeless. 若不是你帮助，我现在还是无家可归。

（6）It makes no/mush difference…例如：It’s doesn’t make much difference my being there. 我在不在那儿没有什么影响。

（7）it takes sb. some time to do sth.例如：It took me nearly an hour to work out the problem. 花了我差不多一个钟才做出那道题.

（8）It appears/ seems/ happens/says that…例如：It seems that he is always correct. 他如同总是对的。