什么情况下it作形式宾语和形式主语

Question

如题所述

Answer 1

形式主语

如果主语由不定式短语、动名词短语或名词性从句充当时，则一般用it做形式主语，真正主语后置。

如：It is easy to work with him. = To work with him is easy.

形式宾语

1）如果其后有宾语补足语，而宾语又由不定式、动名词或名词性从句充当时

如：I find it hard to learn English.

2）个别动词和动词短语加宾语从句时，习惯性先加it，再加宾语从句。

主要动词有like, dislike, hate, appreciate

主要的动词短语有：rely on, depend on, count on, see to, take...for granted, owe...to...等。