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  • 科目:英语
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Many animals  31         (disappear) during the history of the earth.       32          (famous) of these animals were dinosaurs. They lived on the earth        33           (ten) of millions of years ago, long    34        humans came into being. There were many different species of dinosaur and several of them have been found in China. The eggs of twenty-five species have been found in Xixia County, Nanyang, Henan Province, and not long ago a rare new species of bird-like dinosaur was discovered in Chaoyang County, Liaoning Province. The scientists were surprised      35         (find) they could run    36      other dinosaurs, but also climb trees. They could tell this from the way the bones   37          (join) together.
Dinosaurs died    38        quickly about 65 million years ago. Some scientists think it was after a large rock hit the earth and put too much dust into the air. Others think the earth got    39        hot for the dinosaurs to live on any more. Nobody knows   40          sure. In the same way there are animals that have died out more recently and no one knows why. Listen to the story about the dodo, an animal that has disappeared from the earth.

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Manyanimals31(disappear)during