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外研2003课标版《Listening and vocabulary》优质课PPT课件下载
dinosaur
The dinosaur kingdom
Many years ago, there were a lot of dinosaurs living on the earth. They led a happy life.
Everything changed gradually. The climate became worse and worse. Many animals and plants died off.
Unfortunately, a meteorite hit the earth, causing the extinction of many creatures.
meteorite
Besides, there were also volcanic eruptions, which can cause great damage.
Thus, they were in short of food, so they were fighting for food and power.
As a result of radiation and illnesses, many living things stopped evolving.
Eventually the dinosaurs disappeared from the earth. What we could see today is only their bones and fossils.
dinosaur
climate
extinction
volcanic eruption
fight
fossil
meteorite
恐龙
气候
灭绝
火山喷发
打斗
化石
陨石
Let's learn more about dinosaurs.