才能遏制事态进一步发展？现在采取措施是否已晚？我们是否还有时间改正自己的错误？恐龙世界When dinosaurs ruled the Earth (Page 28-D3)Many scientists believe... ?about the time when dinosaurs ruled the Earth?一些科学家认为流星的撞击是造成恐龙灭绝的主要原因。但它们最初是怎样在地球上产生的？如果 ……

比恐龙还老！Turtles lived on the Earth before the dinosaurs (恐龙). ……

Earth look like at that time? How did it change? What did the changes bring to the dinosaurs...恐龙——远古时期陆地的统治者。MILLIONS of years ago, a group of strong and giant animals ruled the world. Some ……

. These suggest that a massive space rock hit the Earth and killed off large reptiles that ruled..., dinosaurs dominated the Earth for over 135 million years. They grew ever larger until they, too ……

“阴盛阳衰”造成了恐龙灭绝？词数：174 建议阅读时间：4分钟DINOSAURS(恐龙) once lived happily on the earth. But 65 million years... not enoughmale(雄性的) dinosaurs. They got this idea after researchingcrocodiles(鳄鱼).'Female(雌性 ……

The Extinction of Dinosaurs concludes that an asteroid (小行星) hitting Earth was, indeed, the cause... earlier, when dinosaurs were more diverse, or a few million years later, when they had a chance ……

千百万年前是谁统治着地球？是神秘而又强大的恐龙家族！WHEN you say "dinosaurs(恐龙)" , do you think of birds? "No, they are so... to understand the earth better. The world the dinosaurs lived in was very different from ourmodern(现代 ……

lizard (恐怖的蜥蜴)”.2.Dinosaurs ruled (统治) Earth for over 160 million4 years. They died out (灭绝) 65 million years ago.3.There were more than 1,000 kinds of dinosaurs. Some were larger than houses. Some were ……

词数 260 建议阅读时间 7分钟 课件及教案见网站 测试见7版史上最大恐龙化石现身阿根廷。DINOSAURS once ruled the animal kingdom. Their huge size made them kings of the land and skies. Although they may not walk on the Earth with us today ……

让我们穿越时空隧道，回到恐龙统治地球的时代……
to this world, dinosaurs were once kings on the earth. They were either meat-eaters or plant-eaters...Kids love dinosaurs揭开恐龙的秘密THEY are huge. They arefierce(凶猛的). They aremysterious(神秘的). You've never ……

恐龙灭绝未解之谜。词数 611 建议阅读时间 11分钟教案和课件见网站 测试见7版DINOSAURS were the largest animals ever to walk the Earth... be found in the Earth’s core (地心). They say it might have come to the surface when a number ……

dinosaurs, and have to rely on (依赖于) our imagination when it comes to questions like “How did they live...恐龙都灭绝了，为什么我们仍旧如此迷恋它？ 词数 379 建议阅读时间 7分钟 测试见 IV版It’s no secret that kids love dinosaurs. Many of them ……

suspected that dinosaurs were land animals. Only recently, however, have the giants of the Earth been... needed to be made in the dinosaurs' appearance.They needed a nose job.A study by Ohio University ……

Dinosaur snackMILLIONS of years ago,ginkgo(银杏) trees started to live on the earth. That was also when large numbers ofdinosaurs(恐龙) lived. Many dinosaurs ate leaves and fruits from ginkgo trees ……

being small 2. BBC Earth chose the Cretaceous period because ______.A. it was the time when dinosaurs had just come into beingB. it was the time when Pachyrhinosaurus had begun to die outC. much had ……