Research Of Deaf Children Acquire Chinese Third-tone

language is the necessary tool in human social communication, while voice is the key of language in the way of transmission. But deaf children can not hear and feel the incitement from external voice. so the major idea of deaf children recoverable education is always that let them return to a voiced world. in the voice adjusting study, the most difficult thing is to get the third tone, this text aimed at this problem, make use of the knowledge of linguistics and experiment phonetics and adopt investigates analytical experimental methods ,to analysis the process of adjusting the last voice. According the experiment result, analytical reason and impact factor, and give some suggestion about the deaf children recoverable education. Hope to get the point in the practice, make the deaf children like other children, can live their lives and study normally, to feel the wonderful world.Part one:Experiment1.Experiment Object: five deaf children from Jilin Deaf Children Recover Center, average age is 5.7,average hearing damage is 94db,average recovering time is 1.3 years.2.Experiment sample: as Xin Hua Dictionary Version 10(2004) and Recover Central teaching material the basic material, find out the up tone monosyllable, then form double syllables phrases and three syllable phrases. Carry them on contrasting inside set, sets contrast. Withdrawing the acoustical parameter, recording an analytical result back of tongue,dorsal tongue pronunciation 3.Analysis soft: Praat system4.Process:Part Two: ResultsSee data form and the pitch analytical diagram Part Three: Discussion and analysis of third tone zactual pronunciation condition .1.Pronounced the up tone of the bilabial and pronunciation in the middle of tongue in the monosyllable is better. Pronunciation at the pronunciation is difficult. To the children who have hearing handicap, they master the sound regulation and sequence as well as the other children. even the performance of the mistakes made in the process of getting sound is similar. But the hearing of the deaf children damaged,they can not get sound from hearing as the normal children. they usually get the sound according the vision .so the sequence of these children's speech development have close contact with visible of sound and the difficult degree of forming sound method. Generally speaking, the more visible the more easily to get .while the more complicate ,the more difficult. Through the experiment, it found that the third tone from deaf children is compacted by final. The open tone is obviously clearer than Qi called gear tone,cuo called gear tone.all of these, third tone of final./a /,/ao/ is pronounced most clearly.2. The first word in the double syllable of third tone is better than the back word in the multi-syllable.The pronunciation of multi-syllable in the first word is better than multi-syllable at back word,than the multi-syllable in the middle word. Though the deaf children's Vocal cords are healthy, they used little time , lead the organ pronunciation lacking of ability of self-control. The deaf children is difficult to master pronunciation, because third tone of dysarthria way is complicated ,and tone is tortuous.It is because the multi-syllable words is complicated, whose tone is hard to master, the articulating system of the deaf children's throat cannot adapt to the swift and various shifts of the tones. In addition, the training period only lasted for one year, hence they cannot grasp the articulation of the multi-syllable words.3.The deaf children's articulation in different phonetic environments: we can come to a conclusion according to the research result, The first word in the double syllable〉The back word in the double syllable>Single syllable word〉Multi-syllable word. We cannot provide enough scientific and sensible evidences to this analytic result, but it can be confirmed that the phonetic environment is related to their articulation of the third tone. In a word, their articulation of the third tone is not satisfied, most of which are articulated by level or falling tones, level and simple, some deaf children articulate with phenomena of falsetto or missing of syllables, which affect the clearness of the tone. No more than 50% of their articulation is understandable.Part Four: RecommendationsFirst, the participants should be taught how to sense tone in a certain circumstances. Without relevant learning atmosphere, the objectives were hardly to feel the tone and could not pronounce naturally. Therefore, circumstance teaching should be encouraged and related with daily life activity. This kind of elicitation method of teaching will motivate deaf children to learn.Secondly, deaf children psychology issue could not avoid. In order to improve deaf children pronunciation and their understandable tone, the learning process should focus on physical and psychological improvement. There is a barrier for deaf children to communicate with other people because they can't hear sound. This will cause many psychology problems. Hence, the learning process should focus on psychology education as well as physical training. It will encourage the deaf children to get involve with more social activity with other normal children.Last but not least, training period and audiphones are the key elements which will affect the learning process. According to the experiment, the younger objectives that had longer training time would sense the tone must more easily. The average age of participants in the research was 4 to 6. It was the best period of language learning. Besides,repeated also help to improve the clarity of tone pronunciation.It will help to improve the objectives sensibility of hearing and self-reflection.Deaf children are a special group which needs more support and patient from the society. With all the kindness, the deaf children will have a bright future as the normal children.