Answer:
The two logical predictions a reader can make based on the excerpt are:
The general will force Rainsford to participate in the hunt.
Rainsford will attempt to escape from the island.
Explanation:
This excerpt of "The Most Dangerous Game" shows the moment after General Zaroff reveals his new hobby of hunting men instead of animals to Rainsford. Since Rainsford is a famous hunter himself, Zaroff hopes that he will be excited by the idea of hunting other human beings. Rainsford, however, is against it, calling it murder.
As we can see in the excerpt, Zaroff wants to show Rainsford his new collection of heads - the heads of the men he has killed -, but Rainsford refuses to see it by claiming he's not feeling very well. He is most likely already thinking of a way to escape. Still, the general is oblivious enough to think he and Rainsford are going hunting the next morning. We know Rainsford is against it, and will probably refuse to do it. But the general has quite a strong personality. From those pieces of information, we can logically predict that:
The general will force Rainsford to participate in the hunt.
Rainsford will attempt to escape from the island.