There is widespread consensus among scholars that second language acquisition(MB1SLA)emerged as a distinct field of research from the late 1950s to early 1960s. There is a high level of agreement that the following questions【M1】______ have possessed the most attention of researchers in this area:【M2】______ Is it possible to acquire an additional language in the same sense one acquires a first language?【M3】______ What is the explanation for the fact adults have【M4】______ more difficulty in acquiring additional languages than children have? What motivates people to acquire additional languages? What is the role of the language teaching in the【M5】______ acquisition of an additional language? What sociocultural factors, if any, are relevant in studying the learning of additional languages? From a check of the literature of the field it is clear that all【M6】______ the approaches adopted to study the phenomena of SLA so far have one thing in common: The perspective adopted to view the acquiring of an additional language is that of an individual attempts to do【M7】______ so. Whether one labels it 'learning' or 'acquiring' an additional language, it is an individual accomplishment or what is under【M8】______ focus is the cognitive, psychological, and institutional status of an individual. That is, the spotlight is on what mental capabilities are involving, what psychological factors play a role in the learning【M9】______ or acquisition, and whether the target language is learnt in the classroom or acquired through social touch with native speakers.【M10】______ 【M1】