first draft - confirmation

1. What is my thesis?
Although some says that language is innate ability, but language acquiring is shaped by repeatitive practice and experience.
2. What types of source am I using to defend my thesis?
I will use expert's opinion and experiments.3. Are my arguments mostly based on evidence, logic or emotion?
My arguments are mostly based on evidence and some logic.
http://navercast.naver.com/contents.nhn?rid=133&contents_id=5874

My confirmation

For two theories, some may agree with innate acquiring theory or some may agree with behaviorism. However, do you really think that human's complex and confused language ability is only shaped by innate ability? Without any stimuli, any experience, any practice can it be that coplex and confused? As we all know, babies start speaking with very short words, then sentences, then flourish expression. Let's go back to our young baby time. At first, parents teach us mommy and daddy. When these words are complished, we learn simple sentences 'I'm 3years old', 'My name is minji'. Then as we experience everyday, our words become flourish. This is because our language ability is developed gradually, step by step with repeatitive experience and practice. My point is that in language acquirng, acquired experiences and practices and manipulations play important role.

Here is an interesting experiment that shows baby's language is influenced by environment. In America, for 2 months-old-babies,they played English and French sentences then counted time when they turn their heads to the sound. The result was that they responded to English a lot quickly than French. This shows that only two months old babies already became sensitive to their native language. This is because that they hear English everyday so they are familiar with native language.
In addition, babies could distinguish similar pronounces. This is the result of the experiment.


This is the result graph of the experiment. Vertical axis represents accuracy and the horizontal axis represents the ages of babies (each of them is 6-8months and 10-12months). And the blue color is data of American babies, the red color is data of Japaness babies.

This experiment is progressed by Kuhl and his companies and they studied how American and Japaness babies distinguish pronounces. They experimented with the sound of /r/ and /l/. Interesitngly, at after 6-8month old both two countries' babies could distinguish two sounds. However, at after 10-12months old, American babies became more sensitive to that two sounds but Japaness babies became insensitive to the sounds.
To explane this phenomenone, the behaviorism is necessary. As time goes by they are exposed to certain language environment : American distinguishes pronounce of /r/ and /l/ but Japaness do not have to pay deep attention to the sound of two letters. These different environments extremely influenced in babies' lanugage acquiring.

Think of the people who go to China to learn Chinese or go to America or England to learn English. What do you think peole go to certain country to learn certain language? This shows that people unconsciously notice that the environment is important for learning language. They go abroad to learn other country's language because in there, all they hear, see, can speak is that country's language. In that country, they listen native's speaking and repeat and repeat and repeat it everytime, become the capable person of that language. This not means that learning foreign language in his or her country is not effective. In certian country, there is a better environment for repeatation of certain language, so people can more easily learn language.

If people were born to genius of language like Noam Chomsky said, why they can not reveal that ability in babies? Why they speak nonsense sound first? Also if the lanugage acquiring is innate, why we learn how to read and write in schools? Because the language is acquired with repeatitive experiences, stimuli and practices, people go language study abroad and children learn how to read and wirte in schools.