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Gimson's pronunciation of english part 5. Bài tập luyện ngữ pháp tiếng anh cho mọi người, đây là tài liệu hay và hữu ích có thể giúp các bạn có thể nắm vững được các ngữ pháp tiếng anh cụ thể. | 36 Language and Sf ce b Figure 5 The primary Coronal Va.vr.-lK rhe ctca symbolized by .j at fej shown os a crcte Instance possible to produce a sound of the Cardinal 7 o type without the lip-tongue relationship suggested. But on the whole. It may be assumed that a certain auditorily identified vowel quality will be produced by an articulation of the kind suggested by the Cardinal Vowel diagram. Moreover it is a remarkable fact that the auditors judgements as to vowel relationships made by Daniel Jones have been largely supported by acoustic analysis in fact a chart based on an acoustic analysis of Cardinal Vowel qualities corresponds very well with the traditional Cardinal Vowel figure see Figs 10 and 11 in Chapter 8 . 4.4.3 Nasality Besides the information concerning lip and tongue positions which the abovt chart and symbolization denote a vowel description must also indicate whethei the vowel is purely oral or whether it is nasalized. The 16 Cardinal Vowels men tinned may all be transformed into their nasalized counterparts if the soft palate is lowered. It is unusual however to find such an extensive scries of nasalized vowels since it is unusual though not unknown for languages to make such fine significant distinctions of nasalized qualities as are common in the case of the purely oral values. 4.4.4 Relatively Pure Vowels vs Gliding Vowels It is clearly not possible for the quality of a vowel to remain absolutely constant or in other words for the organs of speech to function for any length of time in an unchanging way . Nevertheless we may distinguish between those vowels which are relatively pure or unchanging such as the vowel in leant and those which have a considerable and deliberate glide such as the gliding vowel in line. The so-called pure vowels will be marked on the diagram as a dot showing the highest point of the tongue or better a ring since it would be inadvisable to attempt to be over-precise in the matter of these auditory judgements the .
