《AnimalExtinction动物灭绝 公开课PPT课件》由会员分享，可在线阅读，更多相关《AnimalExtinction动物灭绝 公开课PPT课件（15页珍藏版）》请在装配图网上搜索。
1、1. Read quickly to get the main idea of the text.2. What was discovered in Chaoyang County,Liaoning Province?3. What are the possible reasons for the disappearance of dinosaurs refered in the text? 第1页/共15页 Animals have disappeared during the long history of the earth. The most famous of these anima
2、ls are dinosaurs. They lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time. There were many different kinds of dinosaurs and a number of them used to live in China. The eggs of twenty-five species have been found in Xixia C
3、ounty, NanYang, Henan Province. Not long ago a rare new species of bird-like dinosaur was discovered in Chaoyang County,Liaoning Province. When scientists inspected the bones,they were surprised to find that these dinosaurs could not only run like the others but also climb trees.They learned this fr
4、om the way the bones were joined together.恐龙形成;产生检查;视察第2页/共15页 Dinosaurs died out suddenly about 65 million years ago. Some scientists think it came after an unexpected incident when a huge rock from space hit the earth and put too much dust into the air. Others think the earth got too hot for the d
5、inosaurs to live on any more. Nobody knows for sure why and how dinosaurs disappeared from the earth in such a short time. We know many other wild plants,animals,insects and birds have died out more recently. According to a UN report,some 844 animals and plants have disappeared in the last 500 years
6、.事件;事变灰尘第3页/共15页a huge rock hit the earthput too much dustinto the airthedust blockedthe suns lightplants couldnt growmany dinosaurs died forlack of foodOthers thinks the earth got too hot tor the dinosaurs to live on any more.第4页/共15页第5页/共15页第6页/共15页第7页/共15页第8页/共15页第9页/共15页第10页/共15页第11页/共15页第12页/共15页Write an article about your feelings on what you will do to protect animals and our environment.第13页/共15页 Thank you for listening!第14页/共15页感谢您的观看。第15页/共15页
AnimalExtinction动物灭绝 公开课PPT课件
