There are five important aspects of

There are five important aspects of output Hypothesis by Swain. First, learners may acquire more chances to apply the target language effectively. Second. when the language learner means to communicate by using the target language, the original language (his or her mother language)may not be neglected. The learner must transfer from the mother tongue to the target language. Third, the output produced by the language learner can also be used to check which degree the learner has reached. Fourth, when the Language learner communicates with a foreigner speaking his or her target language, the learner will not only get the information，but also can acquire language skills as well as communicative skills. Fifth, in the process of communication with target language users, the language learners can also acquire some metalinguistic structure which is beyond the language itself. And after lots of practices like this, the language learner will gradually make huge progress in the language learning.