Final answer:
In the given passage, the two unlike elements being compared in the simile are Man flash and whey. The simile compares Cyclops' gulps of whey to a mast.
Step-by-step explanation:
In the given passage, the two unlike elements being compared in the simile are Man flash and whey. The simile compares Cyclops' gulps of whey to a mast. The simile is used to illustrate the intensity and greediness of Cyclops' gulps. By comparing his gulps to a mast, which is a large and solid structure, the author emphasizes the voracious nature of Cyclops' eating.