无敌小雷神
Dinosaurs were reptiles and most dinosaurs hatched from eggs. 恐龙是爬行动物，并且大多数恐龙属于孵化。Amazingly blue whales（鲸鱼） are bigger than any dinosaur found so far. The largest dinosaurs were over 100 feet long and up to 50 feet tall. The smallest dinosaurs, were about the size of a chicken.
柠檬草星冰le
Millions of years ago, long before there were any people, there were dinosaurs. Dinosaurs were one of several kinds of prehistoric reptiles that lived during the Mesozoic Era, the "Age of Reptiles." Dinosaurs were reptiles and most hatched from eggs. No dinosaurs could fly and none lived in the water.The largest dinosaurs were over 100 feet (30 m) long and up to 50 feet (15 m) tall (like Argentinosaurus, Seismosaurus, Ultrasauros, Brachiosaurus, and Supersaurus). The smallest dinosaurs, like Compsognathus, were about the size of a chicken. Most dinosaurs were in-between.It is very difficult to figure out how the dinosaurs sounded, how they behaved, how they mated, what color they were, or even how to tell whether a fossil was male or female.There were lots of different kinds of dinosaurs that lived at different times. Some walked on two legs (they were bipedal), some walked on four (they were quadrupedal). Some could do both. Some were speedy (like Velociraptor), and some were slow and lumbering (like Ankylosaurus). Some were armor-plated, some had horns, crests, spikes, or frills. Some had thick, bumpy skin, and some even had primitive feathers.Most dinosaurs were plant-eaters (also called herbivores). For example, Triceratops was a plant-eating dinosaurSome dinosaurs were meat-eaters (also called carnivores). For example, T. rex was a meat-eating dinosaur.The dinosaurs dominated the Earth for over 165 million years during the Mesozoic Era, but mysteriously went extinct 65 million years ago. Paleontologists study their fossil remains to learn about the amazing prehistoric world of dinosaurs.When the dinosaurs lived, the Earth's continents were jammed together into a supercontinent called Pangaea and the Earth was warmer than it is now.
sherryaigigi
范文：
Dinosaurs are very large creatures which appeared on the earth millions of years ago.They became extinct many years later because of a change in climate and they could no longer find any food to eat.
Todaypeople know that dinosaurs had once existed because scientists discovered the remains of their bones when they dug underneath the ground.We can see the skeletons of these dinosaurs now in the museums.
翻译：恐龙是数百万年前出现在地球上的大型生物。多年后，由于气候变化，它们灭绝了，再也找不到食物吃了。今天，人们知道恐龙曾经存在过，因为科学家在地下挖掘时发现了恐龙骨骼的残骸。我们可以现在在博物馆里可以看到这些恐龙的骨骼。
王小若1127
Dinosaurs (恐龙) from the distant past! Space battles from the distant future! There has been a revolution in special effects, and it has transformed the movies we see. The revolution began in the mid-1970s with George Lucas s Star Wars, a film that stunned(使震惊) audiences. That revolution continues to the present with dramatic changes in special effects technology. The company behind these changes is Lucass Industrial Light & Magic (ILM).And the man behind the company is Dennis Muren, who has worked with Lucas since Star Wars. Murens interest in special effects began very early. At the age of 6, he was photographing toy dinosaurs and spaceships. At 10, he had an 8-millimeter movie camera and was making these things move through stop-motion. (Stop-motion is a process in which objects are shot with a camera, moved slightly, shot again, and so on. When the shots are put together, the objects appear tomove. ) Talk to Muren and you 1t understand what ILM is all about; taking on new challenges. By 1989, Muren decided he had pushed the old technology as far as it would go. He saw computer graphics(图像) (CG) technology as the wave of the future and took a year off the master it. With CG technology, images can be scanned into a computer for processing, for example, and many separate shots can be combined into a single image. CD technology has now reached the point, Muren says, where special effects can be used to do just about anything so that movies can tell stories better than ever before. The huge success of Jurassic park and its sequel (续集), The Lost World, the stars of which were computer-generated dinosaurs, suggests that this may very well be true 唔知啱啱
吃逛吃逛2333
TheDinosauriaDinosaurs,oneofthemostsuccessfulgroupsofanimals(intermsoflongevity)thathaveeverlived,evolvedintomanydiversesizesandshapes,withmanyequallydiversemodesofliving.Theterm"Dinosauria"wasinventedbySirRichardOwenin1842todescribethese"fearfullygreatreptiles,"specificallyMegalosaurus,Iguanodon,andHylaeosaurus,theonlythreedinosaursknownatthetime.ThecreaturesthatwenormallythinkofasdinosaurslivedduringtheMesozoicEra,fromlateintheTriassicperiod(about225millionyearsago)untiltheendoftheCretaceous(about65millionyearsago).Butwenowknowthattheyactuallyliveontodayasthebirds.RunningDeinonychus.©1995B.CunninghamSomethingstokeepinmindaboutdinosaurs:•Noteverythingbiganddeadisadinosaur.Alltoooften,bookswritten(ormoviesmade)forapopularaudienceincludeanimalssuchasmammoths,mastodons,pterosaurs,plesiosaurs,ichthyosaurs,andthesail-backedDimetrodon.Dinosaursareaspecificsubgroupofthearchosaurs,agroupthatalsoincludescrocodiles,pterosaurs,andbirds.althoughpterosaursarecloserelations,theyarenottruedinosaurs.Evenmoredistantlyrelatedtodinosaursarethemarinereptiles,whichincludetheplesiosaursandichthyosaurs.MammothsandmastodonsaremammalsanddidnotappearuntilmanymillionsofyearsafterthecloseoftheCretaceousperiod.Dimetrodonisneitherareptilenoramammal,butabasalsynapsid,i.e.,anearlyrelativeoftheancestorsofmammals.•Notalldinosaurslivedatthesametime.Differentdinosaurslivedatdifferenttimes.DespitetheportrayalsinmovieslikeKingKongandJurassicPark,noStegosauruseversawaTyrannosaurus,becauseTyrannosaurusdidn'tappearonthesceneuntil80orsomillionyearsfollowingtheextinctionofstegosaurs.ThesamegoesforApatosaurus("Brontosaurus")—it'sboneswerealreadywell-fossilizedbythetimeT.rexcamealong.•Dinosaursarenotextinct.Technically.Basedonfeaturesoftheskeleton,mostpeoplestudyingdinosaursconsiderbirdstobedinosaurs.Thisshockingrealizationmakeseventhesmallesthummingbirdalegitimatedinosaur.Soratherthanreferto"dinosaurs"andbirdsasdiscrete,separategroups,itisbesttorefertothetraditional,extinctanimalsas"non-aviandinosaurs"andbirdsas,well,birds,or"aviandinosaurs."Itisincorrecttosaythatdinosaursareextinct,becausetheyhaveleftlivingdescendantsintheformofcockatoos,cassowaries,andtheirpals—justlikemodernvertebratesarestillvertebrateseventhoughtheirCambrianancestorsarelongextinct.
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