在莎士比亚的经典悲剧《哈姆雷特》中，第三幕是剧情发展的高潮部分，复仇的火焰被点燃，命运的冲突达到了前所未有的紧张程度。这一幕集中展现了哈姆雷特的内心挣扎、复仇的决心以及周围人物的反应。

一、复仇的决心

1.1 哈姆雷特的内心独白

在第三幕的开头，哈姆雷特通过一系列的内心独白，表达了他对复仇的决心。他承认自己曾犹豫不决，但最终决定采取行动，以报杀父之仇。以下是他的一段独白：

To be, or not to be: that is the question:
Whether 'tis nobler in the mind to suffer
The slings and arrows of outrageous fortune,
Or to take arms against a sea of troubles
And by opposing end them. To die: to sleep;
No more; and by a sleep to say we end
The heart-ache and the thousand natural shocks
That flesh is heir to, 'tis a consummation
Devoutly to be wish'd. To die, to sleep;
To sleep: perchance to dream: ay, there's the rub;
For in that sleep of death what dreams may come
When we have shuffled off this mortal coil,
Must give us pause: there's the respect
That makes calamity of so long life;
For who would bear the whips and scorns of time,
The oppressor's wrong, the proud man's contumely,
The pangs of despised love, the law's delay,
The insolence of office and the spurns
That patient merit of the unworthy takes,
When he himself might his quietus make
With a bare bodkin? Who would fardels bear,
To grunt and sweat under a weary life,
But that the dread of something after death,
The undiscover'd country from whose bourn
No traveller returns, puzzles the will
And makes us rather bear those ills we have
Than fly to others that we know not of?
Thus conscience does make cowards of us all;
And thus the native hue of resolution
Is sicklied o'er with the pale cast of thought,
And enterprises of great pitch and moment
With this regard their currents turn awry,
And lose the name of action.--Soft you now!
The fair Ophelia! Nymph, in thy orisons
Be all my sins remember'd.

这段独白展示了哈姆雷特内心的矛盾和挣扎，最终他决定采取行动，以实现复仇。

1.2 哈姆雷特的行动

在第三幕中，哈姆雷特开始采取行动，他利用了克劳狄斯的疑虑，安排了一场“戏中戏”，以试探克劳狄斯的反应。这场戏中戏名为《捕鼠计》，讲述了一个王子被其叔父篡位杀害的故事，与哈姆雷特的遭遇惊人地相似。

二、命运的冲突

2.1 克劳狄斯的反应

在观看《捕鼠计》的过程中，克劳狄斯开始意识到自己的罪行，他感到恐惧和内疚。在戏中戏结束后，克劳狄斯立即召见哈姆雷特，试图掩饰自己的罪行。

2.2 奥菲利亚的悲剧

与此同时，奥菲利亚，哈姆雷特的爱人，也陷入了悲剧。她因为哈姆雷特的疯狂行为而精神失常，最终溺水身亡。奥菲利亚的死亡加剧了命运的冲突，使得哈姆雷特的复仇决心更加坚定。

三、复仇的实现

3.1 哈姆雷特的复仇

在第三幕的结尾，哈姆雷特终于实现了他的复仇。在一场激烈的决斗中，他杀死了克劳狄斯，为父报仇。然而，哈姆雷特也在这场决斗中丧生。

3.2 命运的终结

随着哈姆雷特的死亡，命运的冲突得到了暂时的解决。然而，复仇的火焰并未熄灭，哈姆雷特的弟弟雷欧提斯继承了王位，他将继续追求复仇。

总结

《哈姆雷特》第三幕展现了复仇之火点燃，命运冲突再升级的情景。在这一幕中，哈姆雷特通过内心挣扎和行动，最终实现了复仇。然而，复仇的代价是巨大的，哈姆雷特和他的周围人物都付出了惨重的代价。这一幕深刻地揭示了命运的残酷和人性的悲剧。