Gulliver's Travels is complicated enough, and common enough on the GRE Literature exam, to merit its own entry. Read a summary and know the following key words from the novel:
1. Liliput
-A land where everyone is 6" tall
2. Brobdignag
-A land where everyone is enormously tall
3. Laputa
-A flying island
4. Struldburgs
-Unhappy immortals who wish they could die
5. Houyhnhnms
-Intelligent, clean-living, right-thinking horses
6. Yahoos
-Idiotic, dirty, violent creatures (humans)
Gulliver's Travels might be worth adding to your exam prep reading list. I recommend the Penguin Classics Edition