简答题In SLA field, the proponents of linguistic-cognitive SLA take (1) as the ideological root while the socioculturally oriented SLA researchers prefer (2) as the implied norm.简答题When people use the dichotomous terms L1 and L2 in language acquisition research, the ideological root is ____. A、multilingualism B、monolingualism C、bilingualism D、All of the above简答题The best known application of innatist perspective to explain SLA is Krashen’s (1).简答题The researchers holding a sociocultural perspective in SLA argue that ___. (More than one choice) A、Language learners co-construct knowledge together B、Language learners could develop their language proficiency through focusing on accuracy instead of fluency C、Language leaners could learn a language through using the language for meaningful communication D、Language learners could learn a language only if they were given comprehensive input.简答题Which theories are proposed from the cognitive perspective in SLA research field? (More than one choice) A、Input Processing B、Contrastive Analysis Hypothesis C、Interaction Hypothesis D、Noticing Hypothesis简答题For the motivation study in SLA, please give the major theory/model in the three stages respectively. 1) The first stage, (1) 2) The second stage, (2) 3) The third stage, (3)简答题Babies make vowel sounds earlier than consonants.简答题Babies at age two usually understand different word orders would mean different meanings.简答题For behaviorists, children learn their first language through ___ A、Imitation B、Comprehensive listening C、Communication D、Immediate correction简答题The researchers holding an innatist perspective hypothesize that children’s first language learning ability is ___. A、Based on their cognitive development B、A biological function C、A supernatural ability D、A result of social interaction简答题Babies at three years old usually have developed metalinguistic awareness.简答题What are the three main perspectives to explain how people acquire their first language? They're (1), (2), and (3).