- •Theory of phonetics. Contents
- •II. Branches of phonetics.
- •III. Connection of phonetics with other sciences.
- •Topics for discussions:
- •I. The vocal mechanism of producing oral speech.
- •II. Groups of organs.
- •III. Segmental and suprasegmental phonetics.
- •Topics for discussions:
- •I. Speech sounds: phones, phonemes allophones.
- •II. Functions of phonemes.
- •III. The place of allophones in the sound system.
- •Topics for discussions:
- •I. The English articulation basis.
- •II. Classifications of Consonants.
- •III. Modifications of consonants in connected speech.
- •Topics for discussions:
- •I. Articulation features of the English and Russian consonants. Plosive
- •Affricates
- •Sonorants
- •Constrictive
- •Constrictive sonorants
- •II. The quantitative and qualitative analysis of the English and Russian consonant systems.
- •Topics for discussion:
- •II. The qualitative analysis of the English and Russian vowel systems. Front monophthongs
- •Back monophthongs
- •Central monophthongs
- •Diphthongs with [I]-glide
- •Diphthongs with [V]-glide
- •Diphthongs with [q]-glide
- •III. Modifications of Vowels in Connected Speech.
- •Topics for discussion:
- •I. The study of syllabic structure of English and Russian words (theories).
- •II. Syllable division.
- •Topics for discussion:
- •I. Word stress.
- •II. Types of stress.
- •III. Functional aspect of word stress.
- •IV Shift of stress.
- •Topics for discussion.
- •III. Rhythm.
- •Topics for discussion.
II. Classifications of Consonants.
Consonants are known to have voice and noise combined, while vowels are sounds consisting of voice only. From the articulatory point of view the difference is due to the work of speech organs. In case of vowels no obstruction is made. In case of consonants various obstructions are made. So consonants are characterized by so-called close articulation that is by a complete, partial or intermittent blockage of the air-passage by an organ or organs. The closure is formed in such a way that the air-stream is blocked or hindered or otherwise gives rise to audible friction. As a result consonants are sounds which have noise as their indispensable and most defining characteristic.
Each sound is known to have three aspects: acoustic, articulatory and auditory and therefore can be studied on these levels. To classify consonants we shall take into account such aspects as work of active organs of speech, place of obstruction, manner of producing the noise, type of obstruction the quantity of voice used.
I. According to the active organs of speech and the place of obstruction:
bilabial backlingual(=velar)
[p], [b], [m], [w ] labio-dental [k], [g], [N]
[f], [v] pharyngeal mediolingual
[h] (=palatal)
[j]
Forelingual
apical-alveolar cacuminal palatal-alveolar apical-interdental
[t], [d], [s],[z],[ l], [n] (=post alveolar) [S], [Z], [C], [G] [T], [D]
[r]
Bilabial – lips are closed
Labio-dental - approach of the upper teeth and lower lip.
Pharyngal – incomplete obstruction appears near the pharynx because of the approach of the root of the tongue and back surface of the pharynx.
Mediolingual – edges of the tongue are pressed to the upper teeth.
Backlingual(=velar)- the root of the tongue makes the obstruction.
Apical-alveolar – inner surface of the upper teeth are on the alveolar range.
Cacuminal (=post alveolar) the top of the tongue is slightly bent, the back part of the top of the tongue acts.
II.According to the manner of producing the noise and the type of obstruction.
occlusive constrictive affricates
[C], [G]
plosivesonorants fricatives
[p], [b], [t], [f], [v], [s], [z], [S],
[d], [k], [g] [Z], [T], [D], [h]
nasal median lateral
[m], [n], [N]; [w], [r], [j]; [l]
Occlusive – complete obstruction for the stream of the air.
Constrictive - incomplete obstruction for the stream of the air when articulating organs are drawn together.
Affricates – when complete obstruction becomes incomplete.
Fricatives – the glottis is not too wide.
Sonorants – voice prevails over noise.
Nasal – the stream of the air goes through the nose (nasal cavity).
Median – the air goes along the tongue.
Lateral – the stream of the air goes along the edges of the tongue.
III. Vocal cords can be:
closed and vibrate taken apart
vowels and voiced the stream of the air goes
consonants are produced out freely and voiceless
consonants are produced