Read each sentence for three times

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Read each sentence for three times Powered By Docstoc
					assimilation

   Presented by 周沫
Read each sentence for three times
   1. I want you to know my friend.
   2. He is from Philadelphia.
   3. Tomorrow we are flying to San
    Francisco.
I want you to know my friend.
ai wat ju tu ou mai
 fred
 ai watFu tE ou mE
 frEd
 ai wQtFE tE ou
 mEfrE
Connected Speech VS
Modification
    In the connected speech, we quite
    naturally, appropriately,and correctly
    modify some of the constituent phonemes
    of the words we use. These modifications
    represent the phenomena of stress,
    assimilation, and elision.
The phenomenon of assimilation

Definition 1

   The effect of sound upon neiboring
    sounds in connected speech.

                 -----------Donald H Ecroyd
         Voice and Articulation:A Handbook
Definition 2
   Sound change or process by which features
    of one element change to match those of
    another that precedes or follows. Divided
    into *progressive assimilation and
    *regressive assimilation.
                      ----------P.H.Matthews
     Oxford Concise Dictionary of Linguistics
Definition 3
      In natural connected speech, sounds
    belonging to one word can cause changes
    in sounds belonging to neighboring words,
    which is different from the words
    pronounced in isolation.
                      --------Peter Roach
English Phonetics and phonology:A Practical
Course
Definition 4
   When a speech sound changes, and
    becomes more like another sound which
    follows it or precedes it, this is called
    assimilation.
                  -------Richards, J.C. et al
         Longman Dictionary of Language
         Teaching&Applied Linguistics
Common Points of Definitions
occurrence    Connected speech


feature       Sound changes


categories    regressive
              progressive
    regressive

         →
-----C ∣
     f
         C i ----

       ←
    progressive
In what ways can a consonant
change?
Differences   in place of articulation



Differences   in manner of articulation



Differences   in voicing
      Assimilation of place
t→p      that person           Tap
         light blue           pE:s
         meat pie               laip
                           blu:
                                mi:p
                           pai
t→t      that   thing       TAt
         get     that      WiN
         cut     through
                           get
                           TAt
       Assimilation of manner
that side          TAs  said
good night          gu
                  ait


in the             i    E
get them           get     tEm
read these           ri:d
                  di:z
     Assimilation of voicing
   I like that black dog.
               blAg dC^
Assimilation Within Morpheme

    Regressive
     impossible    intolerant


     Progressive
     cats          dogs
             Attention
 In learning or teaching English
pronunciation, to do so would not be very
useful. It is essentially a natural
phenomenon that can be seen in any sort of
complex physical activity.
Problem
    good girl
    good boy

  Can one phoneme substitute for
 another?
Thank you for your attention!

				
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posted:1/28/2013
language:English
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