作业帮Do you think it necessary for me to give him a letter 这句话为什么
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/11/07 20:45:57
Do you think it necessary for me to give him a letter 这句话为什么不用is
不应该是it is necessary .还是有什么额外的规则?
不应该是it is necessary .还是有什么额外的规则?
1,it在整句中作宾语,（you是主语,think是谓语）.
2,necessary 是宾补,补充it
3,it其实是形式上的宾语（在整句形式上看是宾语（,实际宾语是：to give him a letter 这个不定式.it是代替这个不定式的（为避免头重脚轻,就是说宾语太长了）.
4,如果用it is necessary ,那又是主谓宾了,就是句子了,也就是宾语从句.这里think后面得宾语从句要加that引导.
Do you think that it is necessary for me to give him a letter .也是可以的.
2,necessary 是宾补,补充it
3,it其实是形式上的宾语（在整句形式上看是宾语（,实际宾语是：to give him a letter 这个不定式.it是代替这个不定式的（为避免头重脚轻,就是说宾语太长了）.
4,如果用it is necessary ,那又是主谓宾了,就是句子了,也就是宾语从句.这里think后面得宾语从句要加that引导.
Do you think that it is necessary for me to give him a letter .也是可以的.
Do you think it necessary for me to give him a letter 这句话为什么
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