考前赢分第 27 天核心知识it 的用法it 有许多不同的用法,主要有下面几种情况,最常用的是:一、指前面提到的东西:1
He bought a book and gave it to me
(代表前面的中性名词,这类情况最多)2
He has a baby, he loves it(or him or her)
(It 可以代表 baby) He has got a pig,he has kept it five months
(It 可代表动物)3
He tried to get up, but found it impossible
(指句子前面某部分表示的意思) He learns music, and it will take him many years
I must say something, but it is impossible
He arrived yesterday, but nobody knows it
( 代 表 前 面 整 个 句 子 , 但 在 这 种 情 况 下 用 that 更好一些
)John hates children, and it is strange
That she knows him and they have been schoolmates, it is a fact
二、指句子后部的东西,此时的 it 通常是形式主语或形式宾语
用作形式主语:其中,不定式和从句作真正主语的这类句式很常见,动名词作真正主语的少一些,主要是以 no good, no use, useless, senseless, worthwhile, dangerous, nuisance, waste 等词作表语的句子中
It’s no use talking to him
He won’t listen
(代表动名词)