Joel Griffin is a famous expert of dinosaurs (恐龙). An interviewer from The world is getting some information from Mr. Griffin.
They lived millions of years ago and their bones (骨头) have turned to stone. They tell us what the world was like millions of years ago. Scientists slowly put together what they discovered. The first dinosaur bones were discovered in 1818.
When dinosaurs were alive, the earth was a very different place. The weather was much warmer and the land was covered with forests. There were no animals, such as cows or horses, like the ones we know today.
There were thousands of different kinds of dinosaurs. Of course there were some huge dinosaurs. They were the biggest animals that have ever lived. But some were very small. Some dinosaurs had heavy bodies and walked on all four legs. Others walked on two strong back legs and had two short front ones.
Some dinosaurs only fed on plants. They were often heavy, slow-moving. Many of them spent a lot of time in water. It prevented their enemies from attacking them. Other dinosaurs were meat-eaters. They hunted for their food. These dinosaurs were fighters with sharp teeth.
Many of the plants that the dinosaurs needed to eat disappeared. Some scientists believe that the weather changed from warm to cold. Some scientists believe that dinosaurs were not able to get used to the changes in the environment. They did not like the cold weather and they could not find enough to eat.
A. What did dinosaurs eat? B. When did dinosaurs live? C. What were dinosaurs like? D. Why did the dinosaurs die out? E. Where were the dinosaurs bones found? F. What was the earth like at that time? |
微信扫码预览、分享更方便
