We find ___ necessary to protect the earth.A.it B.this C.that D.what 为什么用it 不用that呢
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We find ___ necessary to protect the earth.A.it B.this C.that D.what 为什么用it 不用that呢
We find ___ necessary to protect the earth.
A.it B.this C.that D.what 为什么用it 不用that呢
We find ___ necessary to protect the earth.A.it B.this C.that D.what 为什么用it 不用that呢
用形式主语it
这是个: we find + 形式主语 it + 形容词+ to do 的结构,所以不能用 that. 象这种结构记忆就ok了哟
祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!
这里用it的原因就是:用it 代替后面的"to protect the earth"作find宾语,以避免“头重脚轻”这样一个问题。相信你在听老师讲课时听到过:为了避免头重脚轻,英语中常用it来代替一些短语,而把短语放在句子的后面。
请采纳,有问题可追问。
it 做形式宾语,代替to protect the earth,原来的句子应该是we find sth. necessary.句式为we find it +adj.+to do .而that 没有这种用法
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