It is diffcult for me to do it is diffcult 是系动词加表语做谓语还是谓语 is diffcult for 但没这短语

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It is diffcult for me to do it is diffcult 是系动词加表语做谓语还是谓语 is diffcult for 但没这短语
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It is diffcult for me to do it is diffcult 是系动词加表语做谓语还是谓语 is diffcult for 但没这短语
It is diffcult for me to do it is diffcult 是系动词加表语做谓语还是谓语 is diffcult for 但没这短语

It is diffcult for me to do it is diffcult 是系动词加表语做谓语还是谓语 is diffcult for 但没这短语
结构抽象出来就是:it is \ was +adj for sb to do sth 或者是it is \ was +adj of sb to do sth .it 只是一个形式主语,真正的主语是后面的不定式 to do

it is difficult 中的it是形式主语后面的不定式才是真正的主语。是主系表结构。

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这是一个固定句型,句子里的形容词作表语,用来修饰不定式to do,意思是说对某人来说做某事很困难 ,it是形式主语,真正主语是to do sth