单词：Ndareda
单词：Ndareda 相关文章
Friday June 27, Bill Gates will step down from his full-time job at Microsoft, the company he co-founded with his childhood friend, Paul Allen. Gates said he will focus his efforts on improving the health and living conditions of the world's needies
VOA标准英语2008年（六月）
By Michael Bowman Washington 27 May 2006 President Bush says, just as the United States persevered and ultimately won the Cold War against communism, America will emerge victorious in the war on terror. Mr. Bush addressed graduates at the U.S. Milit
2006年VOA标准英语（五月）
Voice 1 Hello. Im Marina Santee. Voice 2 And Im Elizabeth Lickiss. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 My eyes went
环球英语 Spotlight
Thats what it wants to hear, because that sound is gonna mean thats where lunch is. A battle with Triceratops is more often than not a fight to the death. This herbivore has evolved into a tank. Now, as a Tyrannosaur specialist, I dont like to admit
探索与发现2013年
Tyrannosaurus Rex was of ten thousand pound, self-propelled, antitank weapon. Now, sixty five million years later, cutting-edge imaging technology lets us look deep inside their bodies to reveal just how the worlds greatest carnivores really work. Di
探索与发现2013年
The jaws of T-Rex are infamous and lethal, housing sixty teeth with some as long as 30 centimeters. Its skull is constructed of 64 bones designed to be light but strong. Its 16 times stronger than the jaws of an alligator. The front teeth are dagger-
探索与发现2013年
Triceratops protects itself with a bony shield called a frill. They can fend off an attacker with a pair of one-meter-long swords. Youve got to crush it. The only way to deal with this huge, curved, cantilevered, composite armor is a crushing blow wi
探索与发现2013年
Its unlike any other creature that has walked the planet. T-Rex is different. Something about Tyrannosaurs and Tyrannosaurus Rex itself is different than other predatory dinosaurs. But for such a celebrated killer able to take on the toughest creatur
探索与发现2013年
Hearing, smell and sight are all well refined. We can look at the sense of vision and see the attributes of a predator. T-Rexs eyes are 40 centimetres apart providing exceptional binocular vision, the ability to perceive depth. An eye is essentially
探索与发现2013年
Sauroposeidon towers over Deinonychus. In fact, its mammoth size is its primary defense. But this giant begins life very small. For Deinonychus, Sauroposeiden would be a great meal, at least the juveniles, because there wouldve been lots of them and
探索与发现2013年
And Sauroposeidon like most plant eaters are smelly. Unlike a meat eater, they produce huge amounts of waste, feces that form a trail marking everywhere theyve been. For Deinonychus, that odor is a dead giveaway. And this carnivores eyes can clearly
探索与发现2013年
They are actually increasing their chance of getting a meal. Its a strategy still used today. Working together, lions will take on prey as big as a four-ton elephant, and they only have teeth and claws. Deinonychus employs an array of weaponry more p
探索与发现2013年
Deinonychus instinctively knows to go for this giants weak spot, its neck. Youve got the windpipe there. Youve got the jugular vein, which if opened up will mean that that Sauroposeidon is dead meat. But death does not come quickly or pleasantly. For
探索与发现2013年
Attacking another T-Rex may seem like suicide, but a creature with such a voracious appetite has to find food by any means. Cannibalism is the rule. Its not the exception. If youre a carnivore and theres meat there, you take advantage of it. In fact,
探索与发现2013年
Nothing this large would achieve powered flight until the 20th century, 65 million years later. And Quetzalcoatlus still may hold the record for flight duration. Probably stay aloft for a week. Probably it could have gone for 25, 26,000 miles in a si
探索与发现2013年
I think that a big pterosaur on the ground wouldve been spooky because they would be moving around on all fours. Theyd probably have those sort of quick, precise movements like birds, but theyd be huge. Quetzalcoatlus lives by its own rules. Most mea
探索与发现2013年
Other carnivores are even more dependent on cognitive thought. For protection, Deinonychus relies primarily on its brain. --The brain structure of Deinonychus and its role are just really quite remarkable. Relatively speaking, Deinonychus has one of
探索与发现2013年
Mighty carnivores ruled a dangerous world in the Cretaceous Period. But being a super predator like Tyrannosaurus Rex is not easy. Just surviving to adulthood is a major feat, one that takes a decade or more of killing and eating some of the meanest
探索与发现2013年
By Lisa Schlein Geneva 01 February 2008 The U.N. refugee agency reports more than 40 staff and aid workers from private organizations have been withdrawn from the Eastern Chad town of Guereda following a series of armed attacks in the area. The aid w
VOA常速英语2008年（二月）
Voice 1 Hello. Im Marina Santee. Voice 2 And Im Elizabeth Lickiss. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 My eyes went
环球英语 Spotlight