请指教。。。 这句话用什么语法去理解最容易让人接受
刘老师:
▲描述人的性质、特征等品质类形容词,可以直接作“人”的表语:Sb. is + 形容词。这类形容词有:kind, nice, good, polite, impolite, rude, patient, careful, careless, wise, clever, selfish, unselfish, foolish, silly, stupid, cruel, brave, crazy等。例如:
You are very kind.
He was very patient.
▲也可以指某人做了某事所体现的这种品质。这时,可以用代词that或it充当其主语,然后加of sb. 例如:
It is very kind of you. (对你做的事表示谢意)
That was stupid of me. (做那事我太愚蠢了)
▲此外,这类形容词还用在“It is/was+ adj.+of sb.to do sth.” 结构中,不定式前的形容词描述的是不定式逻辑主语的性质、特征、品质,由of引出不定式的逻辑主语,注意不用for sb.。这时,逻辑主语与前面的形容词存在主表关系(看括号里的句子)。
It is kind of you to help us.(=You are kind to help us.)你帮助我们真是太好了。
It was silly of you to trust such a man.(=You were silly to trust such a man.)
你太愚蠢了,竟然相信这样一个人。
It is selfish of him not to do anything for the orphans.(=He is selfish not to do anything for the orphans.)他很自私不愿为孤儿们做点事。
It's unfair of you to say such things about her.(=You are unfair to say such things about her.)你这样说她太不公平了。