《英语语音》课程PPT教学课件（英文版）Unit 5 English Front Vowels & Central Vowels

English Front Vowels Central Vowels

English Front Vowels & Central Vowels

English vowels vowel classification The English pure vowels can be classified according to the height of the raised part of the tongue the part of the tongue raised the position of the lips

English vowels & vowel classification The English pure vowels can be classified according to the height of the raised part of the tongue the part of the tongue raised the position of the lips

a Three factors for the description of english vowels a I. The height of the body of the tongue highest point of tongue(vertical axis) a I. The front-back position of the tongue highest point of tongue(horizontal axis) l. the degree of lip rounding-lip posture

◼ Three factors for the description of English vowels ◼ I. The height of the body of the tongue – highest point of tongue (vertical axis); ◼ II. The front-back position of the tongue – highest point of tongue (horizontal axis); ◼ III. The degree of lip rounding - lip posture

Vowels Congue moves aroud to alter the sLape of the oral caRity

Vowels stylised oral cavity coordinates to mark tomgue height

F2 Bar k 200 Bark beat( 1 u: pool bit i Xbook F1(Hz 400 aug bet( e 3 bird 508 butter d hot 600 bat( ae fast 70 800 BRITISH ENGLISH Data:Deterding 900

Tongue positions for English front and central vowels(unrounded)

Tongue positions for English front and central vowels (unrounded):

hit bit pit () Discret Phonetic III

/ / hit bit pit

bet set head (e) Diacritic ontic

/ / bet set head

bat pat fat (a) Diacritic Phonetic (ac I

/ / bat pat fat