Lots of factors are affecting second language acquisition,of which age is a hotly debated one.Some researchers do believe that age has a central effect on the acquisition of both first and second languages and there is a critical(Lenneberg,1967) or sensitive period in language acquisition,while others think that no adequate evidence of starting early contributes to the proficiency of the target language.Here I will list some of the hypotheses related to age and second language acquisition and find out whether it is true that children acquire more than adults in second language.
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