Unit 3 We’re trying to save the manatees!Part 1: Teaching design (第一部分:教学设计)Structures: Review of structuresTarget language: I think that animals should not live in zoos. I disagree with you. I feel that zoos provide clean and safe places for endangered animals to live.Vocabulary: manatee, cheetah, kangaroo, chimpanzee, recycle, aquatic, habitat, gentle, aggressive, playful, furry, gray, enormous, strong, spotted, underwater, mangrove, vegetation, swamp, save, environment, edu..