Big Bird Lives Only in Zoos
A vulture(秃鹫) is in need of help. Can it be saved?
A big bird is in danger. The bird is the California condor(神鹰), a vulture. A vulture is a large bird that eats the dead animals it finds.
The condor is nearly as big and fast as a small airplane. But you may never see it in the sky. Not enough young birds are hatching to take the place of the old birds that die. When an animal dies out completely, or disappears from the earth, it is extinct.
The condor is in danger of extinction for many reasons. People have built cities where the condors used to live. The condors are having trouble finding food. The birds sometimes get sick. When they do, they cannot hatch young birds.
Some people would like to help the condor. They have captured the 26 condors still on Earth. The condors were taken to two zoos in California. In the zoos, they can live safely and hatch young birds. When there are 200 condors they will be moved to a safe new home in the mountains.
1. An animal is extinct if it _______.
A. feeds on dead animals B. has disappeared from the earth
C. has human friends to save it D. eats wild plants
2. According to the story, vultures eat_______.
A. eggs and grass B. only live animals C. dead animals they find D. the sea animals
3. The condor is nearly as big and fast as a small _______.
A. airplane B. tractor C. bike D. bus
4. The biggest danger to condors comes from _______.
A. wild animals B. other birds C. people D. dead animals
(1—4 BCAC)
【答案与解析】本文介绍了秃鹫生活习性及目前的处境，同时，人类为保护它们而采取的措施。
1.B。细节题。根据文章的第3段最后一句可推知此题答案为B。
2.C。细节题。根据第2段最后一句可推知此题的答案为C。
3.A。细节题。根据文章的第3段第1句可推知此题答案为A。
4.C。推断题。根据第4段第2句：人们在秃鹫原来生活的地方建立了城市，破坏了它们的生活环境，由此可推知此题答案为C。
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