Introduction
Various theories are put forward to describe first language (L1) acquisition and second language (L2) acquisition. In order to understand the nature of L1 and L2 language acquisition, various aspects were examined, compared, and contrasted.
Interlanguages have some common characteristics with L1 acquisition, because both share similar developmental sequences. Some of the characteristics of L2 acquisition show similarities with L1 acquisition, whereas others show differences. Similarities between First and Second Language Acquisition
Researchers have carried out numerous studies to understand the nature of first and second language acquisition. These studies have revealed that both first and second language learners follow a pattern of development, which is mainly followed despite exceptions. Rod Ellis (1984) covers the idea of developmental sequences in detail and outlines three developmental stages: the silent period, formulaic speech, and structural and semantic simplification. a. Developmental Sequences
1. Silent Period:
Both first and second language learners pass through a similar initial stage, the silent period. Children acquiring their first language go through a period of listening to the language they are exposed to. During this period the child tries to discover what language is. In the case of second language acquisition, learners opt for a silent period when immediate production is not required from them. In general, however, many second language learners - especially classroom learners- are urged to speak. The fact that there is a silent period in both first and second language learners (when given the opportunity) is widely accepted.
However, there is disagreement on what contribution the silent period has in second language acquisition. While Krashen (1982) argues that it builds competence in the learner via listening, Gibbons (1985,