A
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’ habitats(栖息地).
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 this? Zoos teach people how animals live in the wild. Zoos want people to help protect the animals’ wild habitats.
Many plants and animals are going extinct. Mammoths, which are related with Asia elephants, are now extinct. There are no mammoths in the world today. Scientists say that seventy-four different kinds of living things go extinct every day!
Zoos are working together to stop animals from going extinct.
【文章大意】一直有人质疑动物园存在的意义。但是今天的动物园, 不仅仅是为了向人们展示动物, 还担负起教育人类保护动物的责任。
21. Zoos kept animals in small cages so that people can .
A. protect them B. see them better
C. feed them D. save them
【解析】选B。细节理解题。从文章第一段中的“. . . many zoos kept all kinds of animals in small cages. Small cages made it easy for people to see the animals. . . ”可得知答案为B项。
22. Today, zoos keep animals .
A. in bigger cages B. in the wild
C. in smaller cages D. in the field
【解析】选A。细节理解题。文章第二段中的第一句“Today zoos keep animals in different kinds of cages. The cages are very big and open. ”选出答案为A项。
23. An animal or a plant that is going extinct .
A. no longer exists(存在) in the world
B. comes into this world soon
C. becomes very dangerous
D. has fewer and fewer living members
【解析】选 D。推理判断题。根据文章第四段中的最后一句“Scientists say that seventy-four different kinds of living things go extinct every day! ”可判断出答案为D项。
