On the other hand , swain also claimed in the output hypothesis that as learners reflect upon their own target language uses , their output serves a metalinguistic function , enabling them to control and internalize linguistic knowledge 写作对阅读有巨大的促动作用。 swain在其“输出假说”理论中认为，必须经过大量的语言实践活动，才能内化输入的语言，最后达到习得语言的目的。
2.
In accordance with grice ' s cooperative principle and maxims , in early modem english can be identified conditionals of speaker - correctness , evidence , quantity , relevance , metalinguistic comment , addressee - cooperation , and politeness 根据会话原则和准则，在早期现代英语里可以识别出说话人正确条件句、证据条件句、数量条件句、相关条件句、元语言条件句、称谓对象合作条件句和礼貌条件句。
