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　　Animals are humans’ best friends. Many years ago, lots of zoos in the world kept all kinds of animals in small cages. Small cages made it 1.____________ for people to see animals.

　　Nowadays, people have 2. ________ that a small cage isn’t good for animals. They think animals are 3.___________ to live in different cages. Today, zoos keep animals in different kinds of cages. The cages are very 4.___________ and open. The cages just look like animals’ 5.___________. Zoos help people 6.____________ animals. They protect animals in the zoo and in the wild. How do they do this? Zoos let people know 7._____________ animals live in the wild, and then people will protect those “wild habitats”.中华考试网(www.Examw。com)

　　Many plants and animals are going extinct 灭绝的. According to a 8.__________ survey, there are seventy-four kinds of living things which are 9.__________ every day! I think the 10._____________ should do something to stop animals going extinct.

　　If all of us try our best to protect animals. The world will become more harmonious和谐的.

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