2018年学位英语考试复习要点（3）

　　it 的用法

　　(1)it用作引词(anticipatory)

　　·作形式主语，真实主语可为不定式，动名词，主语从句

　　e.g.　It was his duty to attend to the matters.

　　It’s no use saying any more about what I think.

　　It seems that he is rich.

　　·作形式宾语，真实宾语可谓不定式，动名词，宾语从句

　　e.g.　I find it easy enough to get on with Pam.

　　You must find it exciting working here.

　　I think it best that you should stay here.

　　(2)it用于强调结构

　　结构：It is (was)+被强调部分(主语、宾语或状语)+who(that)……

　　e.g.　It was his best suit that John wore to the dance last night.

　　It was my two sisters who knew her best.(保持时态一致)

　　It was yesterday I first noticed it.