The good news is, once you reach this point in the process you’re likely to feel energized by all the ideas and thoughts you’ve uncovered in your research, and you’ll have a clear direction because you’ve taken the time to create a thesis statement and organize your presentation with an outline.
There is no secret that you will not be able to write a good insightful research paper if you are not interested in the subject overall and in the topic in particular. If on the other hand the topic is linked to the field of your interest, you may consider yourself lucky. It would be easier to explore the theme and write about it. You may even find some additional resources on your computer or I cloud service for the topic, which excites you. If you enjoy science, you are sure to talk non-stop about it. The same goes for writing.
A single main point doesn’t have to be kept to a single paragraph, especially if you are writing a relatively long research paper. Main ideas can be spread out over as many paragraphs as you deem necessary.
The introduction is, in many respects, the conclusion written in reverse: start by generally introducing the larger topic, then orient the reader in the area you’ve focused on, and finally, supply the thesis statement. Avoid repeating exact phrases that you already used in the conclusion.