以往的二语习得理论从不同的视角对第二语言学习条件及其规律进行了有意义的探讨。
The past SLA theories have meaningful exploration of the conditions and rules of second language learning from different perspectives.
语言学习需要大量练习，既有机械性的练习，也包含各种有意义的练习；
Language learning needs lots of practices, which include mechanical drills, meaningful exercises, output training as well as variety of interactions.
根据语言学习的交际性原则，有意义的练习活动应具备以下特征：（1）有语言使用的情景；
According to the principle of communicative language learning, meaningful practice activities should have the following characteristics: (1) The use of language scenarios;
根据语言学习的交际性原则，有意义的练习活动应具备以下特征：（1）有语言使用的情景；
According to the principle of communicative language learning, meaningful practice activities should have the following characteristics: (1) The use of language scenarios;
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