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KMID : 1022420200120030033
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Phonetics and Speech Sciences
2020 Volume.12 No. 3 p.33 ~ p.40
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Comparison of vowel lengths of articles and monosyllabic nouns in Korean EFL learners’ noun phrase production in relation to their English proficienc
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Park Woo-Ji
Mo Ran
Rhee Seok-Chae
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Abstract
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The purpose of this research was to find out the relation between Korean learners’ English proficiency and the ratio of the length of the stressed vowel in a monosyllabic noun to that of the unstressed vowel in an article of the noun phrases (e.g., “a cup”, “the bus”, etcs.). Generally, the vowels in monosyllabic content words are phonetically more prominent than the ones in monosyllabic function words as the former have phrasal stress, making the vowels in content words longer in length, higher in pitch, and louder in amplitude. This study, based on the speech samples from Korean-Spoken English Corpus (K-SEC) and Rated Korean-Spoken English Corpus (Rated K-SEC), examined 879 English noun phrases, which are composed of an article and a monosyllabic noun, from sentences which are rated on 4 levels of proficiency. The lengths of the vowels in these 879 target NPs were measured and the ratio of the vowel lengths in nouns to those in articles was calculated. It turned out that the higher the proficiency level, the greater the mean ratio of the vowels in nouns to the vowels in articles, confirming the research’s hypothesis. This research thus concluded that for the Korean English learners, the higher the English proficiency level, the better they could produce the stressed and unstressed vowels with more conspicuous length differences between them.
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KEYWORD
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content words, function words, article, noun, noun phrase, vowel length, fluency, stress, Korean English learner
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