⑤It isn't surprising (that) he should have married her.
★如果以that从句为主语的句子是疑问句,就只能用先行词it结构。例如:
①Is it certain that he will come?
②Is it true that he would take the risk?
▲it做形式主语有以下几种不同的结构:
(1)it + be + 形容词+ that-从句
①It is likely that he will come.
②It is strange that she has ever trusted him.
③It is important that he(should) attend the meeting.
④It is best that he (should) go.
此句型在表示惊讶、喜悦、遗憾等感情色彩时,that从句中的谓语动词也常用(should)+ v原形。
It is strange that no one should have objected to the plan.
(2)it + be +名词+ that-从句
It is common knowledge that the whale is not a fish...
It's a pity that he should have massed the train.
(3) it + be + -ed分词 + that从句
It is said that he is a famous writer.
It is reported that there will be a storm this afternoon.
▲在表示建议、要求、命令等意义的被动结构中,that从句中的谓语动词常用(should)do。(参见虚拟语气部分)
It is suggested that the meeting(should)be held this afternoon.
【高中语法详解:名词性从句中的主语从句】相关文章:
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