Second Language Acquisition and Teaching: How the External and Internal Factors Affect SLA

This paper mainly reviews the features of second language acquisition, and influential factors on including influence first language, metalinguistic awareness, culture, along with why these are important. Analyzing how affect acquisition helps to find out what kind difficulties learners might encounter during process acquisition. Both external internal should be taken into account. Since all over world have different languages, their plays an important role in which will learners’ speed accepting language. For individual part, awareness is usually formed at a young age, can recognized as linguistic talent also impact Additionally, culture surroundings psychological conditions. With three acquires correct mistakes more easily, teachers place emphasis particular aspects improve teaching qualities