How big is your research paper? An executive summary is usually done with papers longer than 5 pages. It is a summary written in plain English with no technical terms covering all the main topics of your paper. It should be brief and no more than a page depending on how big the research paper is. Eisenhower was famous for this because when he was President, he had everybody write one because he did not want to long proposals.
A background section has me a bit confused because I don't exactly what your writing. It could be a citations page like in MLA format, but it could also be a bit of explaination on where the research was based on and what conclusions you got out of it. Again, no more than a page if that's what they want.
The Recommendation section is usually your conclusion. Based on all the research and insight you have provided in your paper, your suppose to give an information conclusion which states what you think needs to be done about a topic or what is lacking in the topic usually.
I hope this helps.