判断语法正误She found it difficult to convince him.如果改成She found difficult to convince him.

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判断语法正误She found it difficult to convince him.如果改成She found difficult to convince him.

判断语法正误She found it difficult to convince him.如果改成She found difficult to convince him.
判断语法正误
She found it difficult to convince him.
如果改成She found difficult to convince him.

判断语法正误She found it difficult to convince him.如果改成She found difficult to convince him.
it 在本句中是形式宾语,真正的宾语是不定式to convince him.
改成后面说的不对

不对。。本句话是it做形式宾语。to convince做真正主语

it做形式宾语，代替真正宾语:to convince him
当宾语是不定词或名词子句时，因为宾语过长，常用形式宾语it代替，写成Vt+it+形容词+ 不定词或名词子句，来使句子显得更加工整。比如:
[He made it clear what he intended to do.] 或[He made what he intended to do clear.]
[i ...

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it做形式宾语，代替真正宾语:to convince him
当宾语是不定词或名词子句时，因为宾语过长，常用形式宾语it代替，写成Vt+it+形容词+ 不定词或名词子句，来使句子显得更加工整。比如:
[He made it clear what he intended to do.] 或[He made what he intended to do clear.]
[i find it hard to keep a dog.]或[i find to keep a dog hard.]
在这里it是做found的形式宾语
find 后面的to convince him太长
因此用it来做found的形式宾语
于是有了Sb find it adj to do sth的固定句型
希望能帮到你 O(∩_∩)O~

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你改的那个不对，没有这种语法。为了避免头重脚轻，所以才用it代表形式宾语，真正的宾语也就是to convince him放在了后面，这是很基本的，记住就行了

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