在此类研究中，研究人员需要在很长一段时间内对上音乐课和未上音乐课的不同小组的儿童进行追踪——即使任务并不是完全随机的。

In such studies, researchers would need to follow groups of children with and without music lessons over a long period of time—even if the assignments are not completely random.

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这里，你们学到了几种方法：如何听取关键信息，如何让听力任务简单化，以及如何将歌曲、听写、广播节目用于英语课中。

Here, you have learned ideas about how to listen for key information, how to make listening tasks easier, and how to use songs, dictations, or radio programs in your English classes.

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在精读课的教学中，任务型教学由于可以使学习者有更多的使用语言的机会，能补偿课堂教学缺少真实场景的不足。

In teaching the Intensive Reading of English, the task-based teaching exposes the learner to more use of the language and compensates for the lack of real situation in classroom.

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