1 指的是形式宾语it ;
2 指的是宾补的两种形式:形容词或名词 ;
3 指的是真正宾语的三种形式:不定式短语,动名词短语或that 引导的宾语从句。
Airplanes have made it easy and comfortable for us to travel.
I took it for granted that you would stay with us .
We found it useless learning a theory without practice.
不定式、动名词以及主语从句作宾语时,为避免头重脚轻,要将真正的宾语后置。 高中英语it用法归纳:形式it
1.形式主语:不定式、动名词以及主语从句作主语时,为避免头重脚轻,要将真正的主语后置。
It seemed impossible (for him) to get back home.
It was worthwhile searching for his roots.
It was obvious that his ancestor taught his younger generation little of his own language.
1. It is clear ( obvious, true, possible, certain) that
该句型中it 是形式主语,真正的主语是 that 引导的主语从句,常译为 清楚(显然,真的,肯定)是主语从句最常见的一种结构。
It is very clear that hes round and tall like a tree.
= That hes round and tall like a tree is very clear.
2. It is important ( necessary, right, strange, natural...) that ...
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