Module 6　Animals in Danger
Years ago,many zoos kept all kinds of animals in small cages.Small cages made it easy for people to see the animals,but a small cage is not a good place for an animal to live in.Today zoos keep animals in different kinds of cages.The cages are very big and open.They usually have plants and a little lake.The cages look like the animals’ habitats1.Zoos help to protect all kinds of animals.They protect animals in the zoo and they protect animals in the wild.How do they do ...