作业帮Some peple...Some peple think (_it_) impossible to control the population growth .为什么用it 而不是it is?
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Some peple...Some peple think (_it_) impossible to control the population growth .为什么用it 而不是it is?
Some peple...
Some peple think (_it_) impossible to control the population growth .
为什么用it 而不是it is?
Some peple...Some peple think (_it_) impossible to control the population growth .为什么用it 而不是it is?
这里用it和it is都是正确的.如果只有一个空那当然只能填it.
Some peple think it impossible to control the population growth .
=Some peple think (that) it is impossible to control the population growth .
上面第一句中的it做形式宾语,真正的宾语是不定式短语to control the population growth.因为真正的宾语很长而宾补impossible很短,为避免头重脚轻,用it做形式宾语,而真正的宾语放在后面.
这是 think+宾语+宾补 结构.
第二句是think带宾语从句,it做从句中的形式主语,真正的主语是不定式短语to control the population growth.
it做形式宾语 代替后面的不定式to control the population growth .
think 是动词，这句话不能出现第二个动词了
只有 有 that 才可 it is
some peole think it impossible to ...
some people think that it is impossible to ...
三楼答得很详细
应该是it带指前面提过的一些事。是形式宾语。