Recently I had a class where I had to present a paper, so I basically split the original text and copied it onto a PPT. I feel it really should be concise, but the result still ends up being wordy.
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It’s at a level where even I don’t understand it when I read it. Even if I try to explain it to myself, I might not get it 
. I may indeed need to prepare the PPT as if the audience has never encountered it before.
Is it a literature sharing?
I guess so, the teacher assigned the article for us to discuss.
These days I’ve seen many seniors’ PPTs like this, basically two pages of introduction, two pages of conclusion, three to five pages in the middle for the main content, and there are many charts from papers, looking very clear, with page numbers, and a table of contents, looking very clear.
If it’s verbose, maybe the original literature was padding the word count you can edit as needed.
If you can’t understand it yourself, the audience is even less likely to understand, so there’s no need to worry ().
If you have the energy, you can go to Bilibili or YouTube to watch some oral presentations or talks from top journals/conferences.
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Personal opinion: the focus of the presentation should still be on speaking; the emphasis should be on the script. PPT is an aid, used to display images, to provide evidence against “empty words without proof” (空口无凭), and to show other content that is inconvenient to describe verbally. Overall it should be concise and crisp, with careful addition of text, avoiding large blocks of unfocused text. From the audience’s perspective, I’m here to hear your vivid and expressive explanation, not to listen to you recite verbatim or stare at tiny, distant text on the screen.
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From personal experience, you can almost never (or it’s extremely difficult) to listen to the speaker while reading the text on the slides at the same time.
Therefore, it’s best to put only a small amount of text such as titles/outlines on the slides, and during the talk read those words aloud, or use a finger to pause and give the audience time to read.
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Based on my experience attending lectures and preparing presentations, one approach is to lengthen the part of the Introduction that explaining the problem and background knowledge, another is to use a lot of bold, italic, colored text and images to ensure that each audience member sees roughly the same primary points when looking at the PPT, and also to use a laser pointer/pen/cursor during the talk to further guide the audience to follow your line of thought.
In this process, the unannotated text is mostly extensions of the keywords, with a smaller portion being conjunctions or other sentence elements that make the phrasing smooth; thus you can delete the conjunctions, use the extended parts that show the subordinate relationship to the keywords to split the large block of text into several key sentences, and format them according to common PPT layouts.
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