I think it neccessary for students to take an interest in all subjects .这里的it是作形主还是形宾,it作形主还是形宾是看前面的句子,还是看从句,

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I think it neccessary for students to take an interest in all subjects .这里的it是作形主还是形宾,it作形主还是形宾是看前面的句子,还是看从句,
I think it neccessary for students to take an interest in all subjects .
这里的it是作形主还是形宾,it作形主还是形宾是看前面的句子,还是看从句,

I think it neccessary for students to take an interest in all subjects .这里的it是作形主还是形宾,it作形主还是形宾是看前面的句子,还是看从句,
这里是形式宾语,因为it后面没有谓语动词,所以it只是做think的宾语
再如
I think it is neccessary for students to take an interest in all subjects .
这里it 后面加了一个is ,此时it做的就是形式主语,相当于think后面省略了that,这是that引导宾语从句,而it做宾语从句的形式主语.
判断it做形式主语还是形式宾语,主要看 it后面是否是一个完整的句子,也就是后面是否有谓语动词,如果有就是形式主语,如果没有就是形式宾语

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希望对你有帮助~ I think __能再详细些吗?I think it neccessary for students to take an interest in all subjects .这句话...

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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希望对你有帮助~ I think __

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首先“必须”这个单词多了个"c",这个句子写法没有问题。
这个句中 it 做形式宾语,真正宾语是动词不定式to do sth, 所以同意句是:
I think that to take an interest in all subjects for students is necessary.
也可说
I think that to take an interest...

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首先“必须”这个单词多了个"c",这个句子写法没有问题。
这个句中 it 做形式宾语,真正宾语是动词不定式to do sth, 所以同意句是:
I think that to take an interest in all subjects for students is necessary.
也可说
I think that to take an interest in all subjects is necessary for students.
(当然上面这两种不符合正常英文表达习惯,但其实意思就是如上句所述)
考察的句子中,it 后并无单独的谓语,即不可能做主语,在这只能做宾语。
如果把句子改成宾语从句形式,那么it将做从句的形式主语(如下写法,表达意思完全相同)。
I think that it is necessary for students to take an interest in all subjects. (that这里可省)
首先,如果是有从句结构,那么一般来讲,it前置,那么它是做从句的形式主语较多见。只不过,有时省略了连接词,就会看起来容易被误认为是一个单句结构。
例如:I think it is no problem to finish the work ahead of time. (形式主语)
另外,如果是单句结构,那么it做形式宾语和形式主语都行。
例如:
It is nice of you to do that. (形式主语)
I think it good to have a rest. (形式宾语)

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首先,neccessary 多了个C
再次,你这句子是错误的,少个IS