“none做表语,其单复数与表语一致”该怎么理解?原句和例句是：none作主语,谓语动词单复数均可.但如做表语,则其单复数与表语一致.Itisnoneofyourbusiness.可我不明白后半句的意思,

Question

“none做表语,其单复数与表语一致”该怎么理解?
原句和例句是：none作主语,谓语动词单复数均可.但如做表语,则其单复数与表语一致.
It is none of your business.
可我不明白后半句的意思,

Answer 1

首先说“It is none of your business”中,none of your business在be动词后,因此做的是表语（这个要是不懂你得让老师好好讲讲）,也就是说,此处的none做了表语.
再来看单复数：
none of ur business确实是固定搭配,但是从语法分析,在none of ur business中,business是不可数的,因此作为单数处理,be动词就用了is
再给你举个例子There are none of the people whom you want to find(这里没有你要找的人)