英语元音音域变化特征之实验分析

旨在探讨英语长、短元音及元音音域的语音特征。发音时舌位在口腔中高低位置一直被认为是发好英语元音的重要因素，研究发现，除了长、短元音的音长特性差异外，即使在同一音域中，长、短元音还存在着更明显的特性差异，即元音的音域移动。这个发现纠正了一直以来认为的长元音时长较长，而短元音时长较短的片面性，可以帮助英语学习者摆脱长、短元音发音的困惑，也给英语学习者就如何正确地发好英语元音，提供更为明确的指导性的建议和资料，提高英语学习者辨别元音的信心和能力。

The Movement of Vowels and Its Variations in English: An Experimental Analysis

This study focuses on the space of English vowels and how each pair of tense-lax vowels can be identified according to the accurate phonetic features.The positions or heights of the tongue have been believed to be elements that determine how to pronounce a vowel.However,data in this study show that there is another feature that can tell the difference between the tense-lax vowels-the tense vowel and lax vowel in the same phonetic space move in various directions,mostly opposite to each other.This finding may help EFL learners in two aspects:recognition of these characteristics may benefit EFL learners in Nanchang Institute of Technology so that they can sense the subtle differences of the tense-lax vowel pairs and acquire confidence in English pronunciation.