(Motivation) What are the motivations for this particular problem? What is the backgrounds for understanding the problem? Why is this important?
(Problem) What is, on earth, the exact problem the authors aim to address, and why on earth, is the problem important?
(Related work) What has been done by other researchers to address the same or similar problem on the table? Why the existing work is not enough to call done?
(Method) What is their main methodology to address the problem? How did they actually solve the problem in detail?
(Evaluation) What are the evidences for their success found in the paper? What is missing in their evaluation?
(Contribution) What is the contribution of the paper and what is not their contributions? Are there any limitations in their result? How would you evaluate the value of the paper?
(Future work) What is the remaining problems that were only partially addressed or never covered by the paper? What will be a possible approach to the problem?