关于不定式语法的问题he is said to write a book on educationit is said

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/10/05 01:55:23

关于不定式语法的问题
he is said to write a book on education
it is said that he will write a book on education
为什么第二句要用IT作主语哦,
it is difficult to finish the work within a day.
i find it difficult to work with a day.
第二句能不能改成i find to work with a day difficult?
这得这样有点不通,呵.变成IS DIFFICULT呢?
第一句不定式是主语,DIFFICULT是形容词,第二句不定式是宾语,
DIFFICULT是补语,我能不能这样理解,在名词后面的是补语或同位语?

一、不定式主语补足语转换为that主语从句
he is said to write a book on education
it is said that he will write a book on education
这是不定式用作主语补足语改为主语从句（从句后置,其位置由形式主语取代）的同义句转换,
即：某人 + be + 过去分词 + 不定式(主语补足语)
—— 形式主语it + be + 过去分词 + that主语从句
下列所举都属于这种情况：
据说：one is said to do sth —— it is said + that主语从句,
据报道 one is reported to do sth —— it is reported + that主语从句
据通知：one is informed to do sth —— it is informed + that主语从句
另外还有一种类似转换,但谓语动词事主动语态而不是被动语态 .
似乎：one seems to do sth —— it seems + that主语从句
碰巧：one happened to do sth —— it happened + that主语从句
二、it 用作形式主语和形式宾语
形式主语：it is difficult to finish the work within a day.
形式宾语：I find it difficult to work with a day.
注意：能够用it作形式宾语的动词是有限的,仅包括 feel觉得,find发现,think认为,suppose推测,imagine猜想,expect认为,make使得等几个,不可乱用.另外这类情况只能用形式宾语,不可it 后再加is,把后面变成that从句.

4.He is said a book on the history of Chinese taxation,but I ( )to know Progessor Zhang.A,He said B,I said C,He is said D 四级语法问题2.As a public reiations officer,he is said( )some very 用 He is said 和 It is said that 造句~要正确的语法~ There __no life on the moon.A.is said to have B are said to he is said to中to 的词性 she said that the book was based on 还是is base on a true stor what he said is----- He is said to have been there he is said to.这是什么句型? He is said to know professor Zhang. "It is said that he has gone to Australia"里的it's said是什么意思