It is also very easy for us to travel here.主语it能改为this吗?为什么?

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It is also very easy for us to travel here.主语it能改为this吗?为什么?

不行!
固定句型
It's +形容词 （for/ of sb ) to do sth （对某人而言）做某事是.的.

不可以的。
It is +adj.+ for sb. + to do sth. 是个句型，表示“对于某人来说， 做某事如何如何”
例如： It's good for us to eat natural food. 吃天然食品对于我们来说有好处。
这样的句型中的it其实是形式主语（就是表面看它是主语)，真正的主语是后面的动词不定式。 因为动词不定式如果直接做主语的话，放在...

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不可以的。
It is +adj.+ for sb. + to do sth. 是个句型，表示“对于某人来说， 做某事如何如何”
例如： It's good for us to eat natural food. 吃天然食品对于我们来说有好处。
这样的句型中的it其实是形式主语（就是表面看它是主语)，真正的主语是后面的动词不定式。 因为动词不定式如果直接做主语的话，放在句首给人感觉头重脚轻，所以为了让句子看起来更平衡和协调， （嘻嘻就象人的身体一样，头要小，身子要大不是么）人们习惯上用it做形式主语， 而且只能用it 做形式主语来代替动词不定式部分。
希望能对楼楼有所帮助哦~~~加油(*^__^*) 。

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