I think ___ (it) necessary for students to make an interest in all subjects .这里是不是有两个答案?1.it(作形式主语)2.It's(it作形式宾语)

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I think ___ (it) necessary for students to make an interest in all subjects .这里是不是有两个答案?1.it(作形式主语)2.It's(it作形式宾语)
I think ___ (it) necessary for students to make an interest in all subjects .
这里是不是有两个答案?1.it(作形式主语)2.It's(it作形式宾语)

I think ___ (it) necessary for students to make an interest in all subjects .这里是不是有两个答案?1.it(作形式主语)2.It's(it作形式宾语)
恩,这两个答案都是可行的,但是句子结构就完全不同了
如果是用it,作形式主语
而用it's之后,后面就是一个宾语从句了
I think (that) it's necessary for students to make an interest in all subjects
it还是作后面宾语从句的形式主语

it's

I think __it_ (it) necessary for students to make an interest in all subjects .

你说反了吧。。
i think it necessary中it是主句中think的宾语
I think it's中 it是从句中得形式主语。
另外第一句虽然语法说得通,但是我们很少用I think it 加形容词,,如果改成I find it necessary会更加自然。

it

是有两个答案
如果选it ,那么就用的是think+ 形式宾语 + 宾语补足语结构 。
如果选it's,就用的是think+省略了that的宾语从句结构。因此,两个都对!