Web-based course is the composite of instructing contents released in the Internet and instructional activities conducted on network.

网络课程是通过网络表现的某门学科的教学内容及实施的教学活动的总和。

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When instructional media entered educational field since the last century, as one of the chief factors, it keeps on affecting the instructional activities.

教学媒体自上世纪进入教学领域以来，一直是影响教学活动的重要因素。

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But meaning focused instructional activities may induce language learners to rely on communication strategies which result in a bypassing of the form of language.

然而，过分强调意义或交际策略的结果则是学习者往往忽视了语言形式。

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In general, though, New York districts were able to protect instructional funding, while cutting spending in areas such as utilities, student activities and transportation.

WSJ: Study Weighs Recession Toll