说明:引用此文请注明出处,并务请保留后面的有效链接地址,谢谢!
涉及it用法的五类考点
一、考查it用作形式主语的用法
当不定式、动名词、从句等用作主语时,为避免头重脚轻,通常在句首使用形式主语it,而把真正的主语放在句子末尾。如:
It’s no good sitting up too late.熬夜没有好处。
It is quite clear that he has read the book.很显然,他读过这本书。
It doesn’t matter what he says.他说什么没关系。
【特别提醒】注意it用作形式主语的三类特殊句式:
1.用作动词look, seem, appear, happen, occur, follow等的主语(后接that从句或as if从句)。如:
It seems that he knows everything.他好像什么都知道。
It (so) happened that I had no money with me.碰巧我没带钱。
2.当系表结构后接有if或when引出的状语从句时,通常在系表结构前使用形式主语表示说话人对某情况的看法。如:
It was a great surprise to me when he did a thing like that.他这样做使我很吃惊。
It would be a tragedy if anything went wrong.如果出了什么事就是一个悲剧。
3.用于if it were not for… / if it hadn’t been for…(若不是因为)。如:
If it hadn’t been for the freezing wind they could have reached the injured man in time.要不是有刺骨的寒风,他们就及时赶到伤员身边了。
二、考查it用作形式宾语的用法
当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时,就应在宾语补足语前使用形式宾语,而将真正的宾语移至句末:
We found it difficult to persuade her.我们发现很难说服她。
He makes it a rule to get up before dawn.他习惯于天亮前起床。
I think it very strange that he goes out walking almost every night.我认为他几乎每晚都出去散步是很奇怪的。
【特别提醒】注意it用作形式宾语的三类特殊句式:
1.动词+it+if / when从句
当enjoy, like, dislike, love, hate, prefer, appreciate等动词后需要接一个if或when引导的从句时,此时必须要先在动词后接it作形式宾语。如:
She won’t like it if you arrive late.她不喜欢你迟到。
He hates it when people use his bike.他讨厌别人用他的自行车。
I’d prefer it if I didn’t have to do so much work.要是我不必做那么多工作,那就太好了。
I would appreciate it very much if you would help me with it.如果你能帮助我做这事,我会十分感激。
2.动词+介词+it+that从句
能用于此句型的主要有三个动词,即depend on, answer for, see to。如:
You may depend on it that he will turn up in time.你可以相信他会及时赶到的。
I can’t answer for it that the boy is honest.我不能保证这个男孩是诚实的。
I’ll see to it that all these letters will be sent to the post before twelve.我将注意让所有的信件在12点以前送到邮局。