first draft - refutation and concession

1. What is my thesis?
Babies learn language by repeatitive experience and practice.

2. What is the opposite position?
People are born with innate language acquiring ability.

3. What arguments can I anticipate?
a)Babies learn language without manipulaions b)Babies changes the sentences with basic structures.
c)Babies can learn native grammer even if imperfect language material is provided.

4. How will I counter those arguments?
a)This argument ignores the influence of the environment of society.
b)This is done by repeatation
c)They learn unnecessary grammers by repeatation and do not use that.

I introduced two opposing theory of language acquiring at first. The theory that I ignored also has its reason about babies are born to genius of the language. Let's talk about that reasons.
First, the theory may says that babies learn language without manipulations like parents' and teachers' teaching. This argument is ignoring the influence of the society's environment in learning language. According to the theory, babies start to speak and read and wirte language because they have innate ability to do that. This sounds very uncompelling because it is not improved and not an experimental fact. If the language acquiring is innate ability for human, what are those things that people go abroad language study and teach the words mommy and daddy? Some says that they do not specially teach words like mommy and daddy, and the babies started to speak that words. Of course if parents did not teach them specially, they could learn those words because they hear them everytime.
Second, babies changes the sentences with basic structures. This argument also leaves doubt that how can we explain it. We can understand this arugument with behaviorism rather than innate acquiring theory. If the baby learn to speak a simple sentence they can change the sentence because they hear that type of sentence repeatedly so they know how to use that sentence.
Lastly, babies can learn native grammer even if imperfect language material is provided. Even though babies heared not correct grammer, they uses right form of the grammer. This argument is more reasonable than previous two ones. However, who speaks incorrect grammer expression in their native language? Do parents speak  ' apple, I like' like this? Even if the incorrect grammer is provided, they do not use it because parents teach it is wrong.
In addition,  Most of the reasons that support innate acquiring is not experimental and hypothetical.