Final answer:
The summary should focus on how the text accomplishes summarizing, paraphrasing, and analyzing the selection, as well as the writer's intent regarding conventional expectations.
Step-by-step explanation:
To effectively summarize an excerpt, especially in academic or schoolwork contexts, it's crucial to include key elements that capture the essence of the text. The two most appropriate ideas to include would be: summarizing, paraphrasing, and analyzing the reading selection, and identifying the writer's intent to either conform to or challenge conventional expectations in a rhetorically effective manner. By including these overarching concepts, the summary accurately reflects the text's purposes and methods without delving into excessive detail that would be inappropriate for a summary.