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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 wat ju tu ou mai fred ai watFu tE ou mE frEd 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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