The stages of language knowledge develop by stages, and it is suggested, each successive stage approach more approximates the grammar of the adult usage.
This essay is going to illustrate the different stages in language acquisition that children pass through and elicit the theories in accordance.
In the stage of "the first sounds", the noises produced by infants are simply responses to stimuli, for instance crying as a reaction to hunger. These noises sound the same in all language communities.
Consequently, usually around the sixth month, the infant begins to babble. A large variety of sounds are produced in this period, many of them do not considered occur in the language of the household. During this period, children are learning to distinguish between the sound that are part of their language, and the one which does not. In the stage of babbling, children are learnt to maintain the correct sounds and suppressed the one which are incorrect.
Usually Sometimes after one year, the acquisition progress would evolve into the stage of "first word." Children begin to use the repeatedly use same word to appoint at the same thing, it is also called holophrastic stage. According to same child-language researchers, the words in holophrastic stage serve three functions: they are either linked with a children's own action or desired action; or are used to convey emotion; or serve a naming function.
Children will then start to produce two-word utterance around two years of age. The first utterance of the sentence usually begin start with the child's earlier holophrastic utterance, children begin to form actually two-word utterance with clear syntactic and semantic relations, each word has it own contour. During this period, there is no syntactic or morphological marker such as number, person, tense.
Between two years and two years and half years of age, a child's expressions become considerably more complex, however, it is not necessarily "three-word" sentence stage. Children start producing utterance that average between 2.3 to 3.5 morphemes, it is often sound as if they are reading a telegram, which is also called telegraphic speech, for instance "cat stand up table" and "what that"
A theory of language acquisition suggests that children learn to produce "correct" sentence because they are constantly positively reinforced by saying something is right and negatively reinforced by saying something is wrong. In fact, children do not aware what they are doing and are unable to make correction even when others pointed out. Even if syntactic correction occurred more often, it would not explain how or what children learn from such or how children discover or construct the correct grammar roles. Therefore, children do...