图片是直观的，真实的，它容易创造语言情境。
Pictures are objective, authentic and easy to build language situations.
而班级的语言环境则主要是指隐性的语言环境如班级的教室布置和语言情境。
The language environment of the classroom primarily refers to the covert language environment such as the layout of the classroom and language context.
在具体的语言情境中，说话人从自己庞大的活用语言知识库中选用某种语体而不选用其他语体，是有其内在的心理动机的。
In a particular language context, a speaker has his own psychological motivation in his choosing from his huge bank of active language knowledge a certain type of writing for communication.
在具体的语言情境中，说话人从自己庞大的活用语言知识库中选用某种语体而不选用其他语体，是有其内在的心理动机的。
In a particular language context, a speaker has his own psychological motivation in his choosing from his huge bank of active language knowledge a certain type of writing for communication.
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