内容正文:
it的用法和常用句型
it可以作代词,形式主语,形式宾语,还可以用于强调句中。
一、it作代词
1. 指前面已经提到的事物、不知性别的婴儿或身份不明的人。
e.g. He bought a book and gave it to me.
Someone is ringing the doorbell. Go and see who it is.
2. 表示天气、日期、时间、距离等。
e.g. It is raining heavily outside.
It’s Monday today.
It’s a long time since we met last time.
It’s about two kilometers from here to the station.
3. 用以代替指示代词this, that。
e.g. —What’s this?
— It’s a flag.
二、it作形式主语或形式宾语
1. it作形式主语
1)真实主语是不定式或动词-ing形式。
e.g. It would be a pity to miss this opportunity.
It’s no good standing here in the cold. Let's go home.
2)真实主语是主语从句。常见句型如下:
a. It+be +名词+主语从句。
It is a pity/ shame that…真可惜……
It is no wonder that…不足为奇,并不奇怪
e.g. It is a great pity (that) he can’t swim.
You past the exam? It is no wonder that you look so happy.
b. It+be+形容词+主语从句。
It is certain that… 肯定……
It is well-known that… 众所周知……
e.g. It is certain that we shall be late.
It’s strange that he knows nothing about it.
c. It+动词(+宾语或状语)+主语从句。
It happens that… 碰巧……
It occurs to / comes to/ strikes / hits sb. that…某人突然想起……
e.g. It happened that he had just left for Tianjin.
It doesn’t matter much where we live.
d. It+动词的被动语态+主语从句。
It is said/ reported that… 据说/ 据报道……
e.g. It’s accepted that the universe is endless.
It is not decided who will take charge of the program.
2. it作形式宾语
1)真实宾语是不定式或动词-ing形式,
主语+think/ believe/ suppose/ consider/ feel/ make/ keep…+it +adj./n. +for/ of +sb. to do sth./ that从句
主语+think/ believe/ suppose/ consider/ feel/ make/ keep…+it +no use/ no good…doing sth.
e.g. He felt it his duty to take good care of them.
2)真实宾语是从句。常见句型如下:
a. 主语+动词+it +形容词+ that从句。
e.g. I find it amazing that anyone would want to listen to that music.
b. 主语+动词+it+if / when从句。常用于此句型的动词有appreciate, enjoy, like, dislike, love, hate等。
e.g. She won’t like it if you arrive late.
He hates it when people use his bike.
c. 主语