<正> it 是个人称代词,可以用来指代事物或人。但是,在下列三种情形中,它只不过用来帮助构成某些习惯用语,在这些习语之中它只充当形式上的宾语,而它本身的指代意义已消失殆尽。一、在特定的动词之后作模糊宾语:1.As luck would have it:碰巧,不巧As luck would have it,a doctor happened to be there when she fainted.她晕倒时幸好旁边有一位医生。As luck would hve it,I was out when he called.不巧得很,他来访时我正好外出了。2.be hard put to it:陷入困境