it +过去分词+从句
It is reported that 据报道
It has been proved that 已证实
3. 主语从句不可位于句首的五种情况
if 引导的主语从句不可居于复合句句首。
It is said , 结构中的主语从句不可提前。例如:
It is said that President Jingo will visit our school next week.
That President Jiang will visit our school next week is said.
It happens, It occurs 结构中的主语从句不可提前。例如:
It occurred to him that he failed in the examination.
That he failed in the examination occurred to him.
It doesnt matter how/whether 结构中的主语从句不可提前。例如:
It doesnt matter whether he is wrong or not.
Whether he is wrong or not doesnt matter.
含主语从句的复合句是疑问句时,主语从句不可提前。例如:
Is it likely that it will rain in the evening?
Is that will rain in the evening likely?
4. What 与that 在引导主语从句时的区别
What 引导主语从句时在句时在从句中充当句子成分,如主语.宾语.表语,而that 则不然。例如:
1) What you said yesterday is right.
【名词性从句】相关文章:
★ 名词性从句的用法
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