I find that language analysis is quite structural.
First Paragraph:
Introduce context.
Introduce the article, author, audience, tone, arguments, etc.
Body Paragraphs:
Always introduce tone and provide evidence.
I personally choose to structure paragraphs by argument, so make sure you break up the article by arguments.
Provide 3-4 techniques for evidence.
For each technique: 1-2-3 method.
1. Identify the technique
2. Explain why and how the author uses it
2. Explain the intended effect on the audience "the use of [technique] creates an appeal to justice and thus positions the audience..." etc.
Link paragraph back to the argument and the contention.
Conclusions:
Basically conclude and provide an overview of the arguments.
Refer to the author's position/status if possible and it's intended effects on the reader.