1 explain the syllabic structure in english

Active organs of speech are movable and taking an active part in a sound formation:

1. 
   Vocal cords which produce voice
   
2. 
   The tongue which is the most flexible movable organ
   
3. 
   The lips affective very considerably the shape of the mouth cavity
   
4. 
   The soft palate with the uvula directing the stream of air either to the mouth or to the nasal cavity
   
5. 
   The back wall of the faring contracted for some sounds
   
6. 
   The lower jaw which movement controls the gap between the teeth and also the disposition of the lips
   
7. 
   The lungs air for sounds
   

Passive organs of speech:

1. 
   the teeth
   
2. 
   the teeth ridge or alveolar ridge
   
3. 
   the hard palate
   
4. 
   the walls of the resonators
   

6 How do you characterize the active organs and passive organs?
There are four cavities in out speech tract. They are: the nasal cavity, the mouth cavity, the pharynx and the larynx. They are empty spaces and function as resonators.
The organs of speech that can move and change their position are called active. They are: the lips, the tongue, the soft palate, the uvula, the vocal cords and the lungs. They take an active part in the articulation of speech sounds. They change the form and size of the resonators.
The lips change the shape and size of the mouth opening. They can be rounded or unrounded.
The bulk of the tongue can move horizontally and vertically. The movements of the tongue change the volume and the shape of the mouth resonator and different sounds are produced.
For the purposes of phonetics the tongue is divided into the following parts: the tip of the tongue, the blade of the tongue, the front of the tongue, the back of the tongue and the root of the tongue.
When the tongue is at rest, the blade with the tip lies opposite the alveolar ridge, the front of the tongue is opposite the hard palate, the back of the tongue is opposite the soft palate and the root of the tongue is opposite the back wall of the pharynx.
The soft palate with the uvula separate the mouth cavity from the nasal cavity. The uvula regulates the way of the stream of air in speech. When the uvula is raised, the stream of air goes out through the mouth cavity. When the uvula is lowered, the stream of the air goes out through the nasal cavity.
The vocal cords are the two muscles by the sides of the larynx. The space between the vocal cords is called the glottis. When the vocal cords are tense, they are brought close together, the stream of air touches them, makes them vibrate and they produce voice. When the vocal cords are lax, the stream of air goes out freely and no voice is produced; when they do not vibrate voiceless consonants are produced. when we speak, the lungs push the stream of air out.
The passive organs are teeth, the alveoli and the hard palate. They are fixed and serve as places of articulation.