period ⅱ reading comprehension
ⅰ.单词巩固
1.v. ________爆裂
________毁灭
________损害,伤害
________毁坏,破坏
________震惊
________埋葬
________营救
________使陷入困境
2.n. ________,________地震
________井
________管,导管
________百万
________大事
________民族,国家
________运河
________蒸汽
________污垢