How to Pronounce "the" in English

Normally, we pronounce "the" with a short sound (like "thuh"). But when "the" comes before a vowel sound, we pronounce it as a long "thee".

vowel sound	we write	we say
A	the apple	thee apple
E	the egg	thee egg
I	the ice-cream	thee ice-cream
O	the orange	thee orange
U	the ugli fruit	thee ugli fruit

It is important to understand that it is what we say that matters, not what we write. It is the sound that matters, not the letter used in writing a word. So we use a long "thee" before a vowel sound, not necessarily before a vowel. Look at these cases:

we write	with	we say	with
the house	consonant (h)	thuh house	consonant sound
the hour	consonant (h)	thee our	vowel sound
the university	vowel (u)	thuh youniversity	consonant sound
the umbrella	vowel (u)	thee umbrella	vowel sound

Emphatic the [thee]
When we wish to place emphasis on a particular word, we can use "emphatic the" [thee], whether or not the word begins with a consonant or vowel sound. For example:

A: I saw the [thuh] President yesterday.
B: What! The [thee] President of the United States?
A: Yes, exactly.