Act 1, Scene 1 from King Lear

CORDELIA: [aside] What shall Cordelia speak? Love, and be silent.
LEAR: Of all these bounds, even from this line to this,
With shadowy forests and with champains rich'd,
With plenteous rivers and wide-skirted meads,
We make thee lady. To thine and Albany's issue
Be this perpetual.—What says our second daughter,
Our dearest Regan, wife to Cornwall? Speak.
REGAN: Sir, I am made
Of the selfsame metal that my sister is,
And prize me at her worth. In my true heart
I find she names my very deed of love;
Only she comes too short, that I profess
Myself an enemy to all other joys
Which the most precious square of sense possesses,
And find I am alone felicitate
In your dear Highness' love.

CORDELIA: [aside] Then poor Cordelia!
And yet not so; since I am sure my love's
More richer than my tongue.
LEAR: To thee and thine hereditary ever
Remain this ample third of our fair kingdom,
No less in space, validity, and pleasure
Than that conferr'd on Goneril.—Now, our joy,
Although the last, not least; to whose young love
The vines of France and milk of Burgundy
Strive to be interest; what can you say to draw
A third more opulent than your sisters? Speak.
CORDELIA: Nothing, my lord.
LEAR: Nothing?
CORDELIA: Nothing.
LEAR: Nothing can come of nothing. Speak again.
CORDELIA: Unhappy that I am, I cannot heave
My heart into my mouth. I love your Majesty
According to my bond; no more nor less.
LEAR: How, how, Cordelia? Mend your speech a little,
Lest it may mar your fortunes.
CORDELIA: Good my lord,
You have begot me, bred me, lov'd me; I
Return those duties back as are right fit,
Obey you, love you, and most honour you.
Why have my sisters husbands, if they say
They love you all? Haply, when I shall wed,
That lord whose hand must take my plight shall carry
Half my love with him, half my care and duty.
Sure I shall never marry like my sisters,
To love my father all.
LEAR: But goes thy heart with this?
CORDELIA: Ay, good my lord.
LEAR: So young, and so untender?
CORDELIA: So young, my lord, and true.

Lear’s tone in the passage can best be described as changing from

formal to accusatory.
friendly to hostile.
pleased to astonished.
proud to outraged.
supportive to scolding.

The best description of Lear's tone in the passage is from proud to outraged. At first, Lear is proud and pleased as he divides his kingdom among his daughters. However, as Cordelia refuses to flatter him and speaks honestly, Lear becomes outraged and scolds her.