Ⅰ.阅读单词
1.intrigue v. ____________
2.pyramid n. ____________
3.tropical adj. ____________
4.cyclone n. ____________
5.megadrought n. ____________
6.downfall n. ____________
7.getaway n. ____________
8.retreat v. ____________
9.subdue v. ____________
10.the unknown ____________
11.uncharted adj. ____________
12.delve v. ____________
13.shrink v. ____________
14.shipwreck n. ____________
15.archaeological adj. ____________