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cted by the pronunciationfrom their mother tongue.From the perspective of phonological structure,Chineseand French stop sounds have different distinguishing characteristics.The former isdivided into aspirated stops sound and un-aspirated stops sound according to thelength of aspirated time,and the latter is divided into voiceless sound and voicedsound according to whether or not the front vocal fold is blocked.Chinese studentsare prone to errors and transfer during the acquisition of stops in French.

The study of foreign language speech acquisition includes speech productionand speech perception.Among them,the research on speech production focuses ontwo aspects:1)Using comparative analysis to compare the speech production of thelearner with the mother tongue so as to compare the speech performance of thelearners and analyze the learner's errors and explore the relevant factors affecting theaccuracy of pronunciation according to the similarities and differences between thetwo,in order to summarize the rules of foreign language pronunciation acquisition,and better serve teaching research;2)From a cognitive perspective,based on learners’foreign language oral production,to explore learners’mastery and application ofknowledge,to summarize the development rules of oral language,and to establish asound oral evaluation system(Zhi,Jia,Li 2016)

3 Experimental Design...................................26

3.1 Experimental Subjects.........................26

3.2 Experimental Materials............................28

4 Analysis of Acoustic Data of Chinese Learners.............................35

4.1 Comparison of Pronunciation between Chinese Learners and French Native Speakers......35

4.1.1 Acquisition of Voiceless Stops in French...........................35

4.1.2 Acquisition of Voiced Stops in French......................39

5 Analysis of Perceptual Data of Chinese Learners...............................54

5.1 Perceptual comparison between Chinese learners and French native speakers...................54

5.1.1 The first set of perception experiments.............................54

5.1.2 The second set of perception experiments.................................57

Five Analysis of Perceptual Data of Chinese Learners

5.1 Perceptual comparison between Chinese learners and Frenchnative speakers

5.1.1 The first set of perception experiments

The opposition of voiced and voiceless is a distinguishing feature of French stops.The difference can be distinguished by the positive and negative values of the VOT.The VOT range of French voiced stops measured by acoustic experiments is-80ms～-60ms.While the VOT range of French voiceless stops is between 0ms and60ms.Judging from the results of perception experiments,French native speakershave a perceptual boundary of 0ms,and the perceptual boundary in unilingualCanadian French is about 8-20ms(Caramazza et al.1973).What perceptual modelswill Chinese learners of French present in French stop acquisition?Does the learner's perception patterns and pronunciation acquisition show a certain correlation?Does thebackground of the voiced stop dialect aff本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。