How to read papers of professors?
Don't expect to understand the whole paper. Many researchers won't manage that either anyway, without a fair amount of time. Read the introduction. That should be written in simpler/less technical words, and give you an idea of what's going on. If that's still too hard, identify the main words in the title/abstract, and see if there are corresponding articles of Wikipedia (which isn't reliable enough to quote, but in many areas is actually pretty accurate).