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1: Consonants / Las consonantes
2: Vowels / Las vocales

1. Consonants / Las consonantes

Spanish spelling is pretty consistent: most letters represent a single sound regardless of their position in a word. Note the following peculiarities:

H - la hache is never pronounced. Thus, words like Honduras, ahora and alcohol have no aspiration before the /o/ sound.

CH - la che is always pronounced as in "cheers": coche, ocho.

La hache is not combined with any other consonants: there is no th, sh, ph, gh, etc.
(English "ph" may translate to "f": filosofía, Filadelfia, fantasma).

C - la ce is pronounced /k/ (as in "case") in most positions: caso, cosa, cuota, frecuente, crisis.
- Before -e, -i, it is pronounced /s/ (as in "sin") in America or /th/ (as in "thin") in Spain: cielo, acento.
- The /k/ sound (as in "kiss"), is spelled "qu" (mute "u") before -e,-i: queso, quince.

G - la ge is pronounced /g/ (as in "go") in most positions: gala, gota, guante, globo.
- Before -e, -i, it is pronounced almost like /h/ (as in "hen"): general, gitano.
- The /g/ sound (as in "get"), is spelled "gu" (mute "u") before -e,-i: guerra, guitarra.

If the letter "u" is to be pronounced in a "gue/gui" combination, it is marked with a diaeresis (la diéresis): pingüino, bilingüe, nicaragüense.

Q - la ku is used only in the que/qui combinations, and the "u" is always mute in this position. Therefore, the word quinteto has no /u/ sound, and English "quota" and "frequent" translate to cuota and frecuente.

Z - la zeta is pronounced /s/ in America and /th/ in Spain.
Spanish avoids the ze/zi combination and prefers ce, ci: lápiz → lápices ; cebra, cenit.

Only four consonants can be duplicated to represent specific sounds:
cc is used before "e" or "i" only and sounds /ks/ (/kth/ in Spain): acción and acceso but acento, ocurrir.
ll sounds /y/: calle, llama but ilegal, aludir, inteligente.
rr represents the famous "rolling r" between vowels only: perro, carro vs. pero, caro.
nn is used only when a prefix ending in "n" is added to a word beginning with "n":
   innecesario, connotación, but anual, anotación, conexión.

No other consonants are duplicated in Spanish: efectivo, común, oportunidad, imposible, adición.

Summary / Resumen
Never pronounce the letter H (hache): alcohol, ahora, humano, Honduras, holocausto.
Hard C sound: /k/ as in kiss
S/Z sound:/s/ or /th/ as in sink/think
Hard G sound:
/g/ as in get
Soft G sound: /h/ as in hen
ca que qui co cu
za ce ci zo zu
ga gue gui go gu
ja je ji jo ju ge gi
buscar, busqué
realizar, reali
pagar, pagué
hija,gitano
As you see, vowels e and i are exceptional in their combination with g and c.
The words que, quien, guerra and guitarra may help you remember these spelling changes.
No double consonants except rr, ll, cc and nn ph → f : filosofía

PRÁCTICA 1.   Escriba en español el equivalente de las siguientes palabras, notando la ortografía (spelling).

1. connection ____________
2. different ____________
3. occur ____________
4. frequency ____________
5. possible ____________
6. recommend ____________
7. committee ____________
8. difficult ____________
9. accuse ____________
10. zeal ____________
11. photograph ____________
12. chemistry ____________
13. intellectual ____________
14. immigrant ____________
15. bilingual ____________
16. architecture ____________
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2. Vowels / Las vocales

Spanish has five vowel sounds  -a, e, i, o, u-, pronounced the same way regardless of their position in a word: 
   a. like the a sound in "father": casa, alma
   e. like the e sound in"let": lee, cena
   i.  like the ee sound in "leek": mil, millaje
   o. like the aw sound in "lawn": son, hoja
   u. like the oo sound in "loom": tú, Honduras (u is mute in que, qui, gue, gui)

i and u are called "weak" (débiles o cerradas) because, in combination with another vowel, are generally pronounced as one syllable: Ruiz, fue, dio, have only one syllable. These are considered true diphthongs in Spanish —two vowels in one syllable—, as in a·gua or vien·to.

a, o, and e are called "strong" (fuertes o abiertas). Two strong vowels are pronounced as two syllables: po·e·ma has three syllables, ca·os has two. These are not true diphthongs, since the vowels belong in different syllables.

PRÁCTICA 2.   Pronuncie las siguientes palabras y haga click en los diptongos. Consulte el diccionario si es necesario.

Click on the dipthongs / Pulse en los diptongos
mar, sea, leer, hacer, ayer, amiga, mente, china, siempre, actividad, caos, cooperar, alcohol, ahora, serie, sociedad, hondureño, muerto, azul, sueños, agua, viento, actuar, plus, feo, diez, fuerza, cierto, realizar, cuento, fui, previo, chocolate, bilingüe, cualidad, ciudad, guerra.
   flash 'flash/prac2.mp3'
ESCUCHAR

V
mar, sea, leer, hacer, ayer, amiga, mente, china, siempre, actividad, caos, cooperar, alcohol, ahora,
serie, sociedad, hondureño, muerto, azul, sueños, agua, viento, actuar, plus, feo, diez, fuerza, cierto,
realizar, cuento, fui, previo, chocolate, bilingüe, cualidad, ciudad, guerra.
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