1.由 that 引导的主语从句 That he hasn't phoned is odd.
That price will go up is certain.
That she is still alive is a surprise.
That she became an artist may have been due to her father's influence.
That she was chosen made a stir in her village.
2.由连接副词或代词引导的主语从句 Who are the winners hasn't been announced.
What I'm afraid of is the judge's comment.
What is over is over.
When he will be back depends much on the weather.
Where we live doesn't matter much.
How the game has been cancelled was mentioned yesterday.
主语从句的形式主语有两种: (采用形式主语的原因, 为避免主语过长造成句子头重脚轻)
1.it 做形式主语 It was clear enough what he meant.
It is no business of yours where I spend my summer.
It's a puzzle how life began.
It was a question whether he should get married.
2.there 引导的句子 there be做形式主语
There is no rainbow in the sky.
There are a number of swans on the lake.
There used to be a cinema here.
There seems to be something exciting with her.
There followed a flood of applause from the spectators.
There came a knock at the door.