1.denounce的基本意思是“公开指责”,指公开地指出别人的缺点。常引申表示“揭发”“告发”“通知废止”。
2.denounce是及物动词,接名词或代词作宾语,也可做以as短语充当补足语的复合宾语。可用于被动结构。

denounce for (v.+prep.)
因…而谴责,就…告发 expect (sth) from (sb or sth)
▲denounce sb for sth/v-ing
Father denounced his son for lies.父亲因儿子撒谎而谴责他。
Mary denounced her husband for bad behaviour.玛丽谴责丈夫的不良行为。
The woman denounced her neighbour for helping the enemy.这位妇女告发她的邻居帮助敌人。

用作及物动词
▲S+～+n./pron.
He denounced the bad woman to the police.他向警察局告发了这个坏女人。
We should denounce a heresy.我们应该公开指责异端邪说。
She denounced his drinking.她斥责他的酗酒。
The newspapers denounced the new taxes.报纸通知废止新的税务。
The government denounced the treaty.政府通知废止该项条约。
◇ 用于be ～ed结构
He was bitterly denounced.他受到严厉指责。
用作宾补动词
▲S+～+n./pron.+as n./adj.
Mary denounced him as an illegal alien.玛丽告发他是非法外侨。
He denounced his own brother as a thief.他公开揭发他亲兄弟是小偷。
◇ 用于be ～ed结构
He was denounced as a rascal.他被当众指责为无赖。
His behaviour was denounced as worthy of punishment.他的行为被公众认为应受责罚。