THE VOWEL SOUNDS

There are many  types of vowel sounds 

- the pure vowel sounds

  they are simple sounds and they are diphthongs. according to their joint can be:

Rounded: The lips are pushed forward into the shape of a circle. Example sound /ʊ/

Spread: the corners of the lips are moved away from each other , as when smiling. Example sound: /i:/

Neutral: The lips are not noticeably rounded or spread. Example sound: /ə/

-The close vowels

for the close vowels the tongue is quiet high in the mount. moving from /i:/ trought to /u:/, we also notice the diferent positions of the tongue 

-The mid  vowels 

For mid vowels the tongue is neither high nor low in the mouth. Moving from /e/ trough to /ᴐ:/

-The open vowels

for open vowels, the tongue is low in the mouth. Moving from /ᴂ/ trough to /ɒ/ from front to back.

http://www.singwise.com/cgi-bin/main.pl?section=articles&doc=VowelsFormantsAndModifications

  Reflection:

With this topic I could learn about the types of vowels in the English language is also the diphthongs there are 12 vowels and diphthongs 8 because the study of the vowels is very importan to improve the pronunciation of the language  I learn the position of the tongue in each vowel .