Die用作不及物动词，dead用作形容词，death用作抽象名词。die是不及物动词，一般指因得病,受伤等原因死亡；die用来进行时态做“生命告急”解；dead是形容词，表明状态，可在句中做表语与定语；death是抽象名词，仅能在句中做主语或者宾语。
Every man dies, not every man really lives.
每个人都会死去，但不是每个人都活得有价值。
He died a sudden death in a Kansas car crash in 2009.
2009年，他在堪萨斯州的一次车祸中意外去世。
When his parents died, he was placed in the custody of his aunt.
他父母去世后，他由姑妈监护。
The sound of the music died away.
音乐声渐渐消失了。
As the flames died down he felt cold air on his face.
当火焰变小熄灭时，他感到冷空气扑面而来。
The man we thought dead walked bodily into the room.
我们以为已经死了的那个人活生生地走进了房间。
We sawed the dead branches off the tree.
我们把枯枝从树上锯下来。
I was dead drunk yesterday evening.
昨天晚上我喝得酩酊大醉。
He was stabbed to death in a fight.
他在一次搏斗中被刺死。
There is no medicine against death.
没有长生不老药。
Twenty years after the event, his death remains a mystery .
事件发生20年后，他的死仍然是个谜。