美国学者Krashen在他的第二语言习得理论中指出,发展外语能力主要依靠两种途径:语言学习和语言习得。语言学习指有意识地学习外语的知识(包括语法、语音、词汇知识);语言习得类似儿童习得母语的过程,通常是在大量语言信息的刺激下通过语言的自然交际获得的。Krashen认为习得比 The American scholar Krashen pointed out in his theory of second language acquisition that the ability to develop foreign languages ​​relies mainly on two approaches: language learning and language acquisition. Language learning refers to consciously learning foreign language knowledge (including grammar, pronunciation, vocabulary knowledge); language acquisition is similar to children’s acquisition of their mother tongue, and is usually obtained through the natural communication of language under the stimulation of a large amount of language information. Krashen thinks that the acquisition ratio