音标:[nə:] ;
n. 木球;(树木的)节疤(等于knur)

By Mil Arcega Washington, DC 08 September 2006 watch Pentagon Survivors report Americans will mark the anniversary of the September 11th, 2001 terrorist attacks in many ways. Some will attend church services. Others will take part in marches and mem

发表于:2019-01-11 / 阅读(484) / 评论(0) 分类 2006年VOA标准英语(九月)

First of Japan Disaster Survivors Get Temporary Houses A month after the magnitude 9.0 earthquake and resulting tsunami devastated northeastern Japan, more than 125,000 people remain in evacuation centers. Others are living with relatives. Most of th

发表于:2019-01-14 / 阅读(471) / 评论(0) 分类 VOA标准英语2011年(四月)

By Deborah Block Washington, DC 07 August 2006 watch Hiroshima report The Enola Gay on display Sunday marked the 61st anniversary of the atomic bombing of Hiroshima, Japan. During World War II, a United States plane nicknamed the Enola Gay flew over

发表于:2019-01-19 / 阅读(469) / 评论(0) 分类 2006年VOA标准英语(八月)

Its reputation for violence and terror is unmatched, but an infant T-Rex comes into the world better protected than most. If you say Tyrannosaurus Rex, I think of gentleness. I think of superb motherhood and a struggle to raise ones chicks. The dread

发表于:2019-01-23 / 阅读(338) / 评论(0) 分类 探索与发现2013年

I think its a very beautiful idea that you have this little egg thats surprisingly small and out of it comes a baby sauroposeidon thats about the size of a rabbit and in two or three decades, its gonna be a 50-ton adult. But why does this huge animal

发表于:2019-01-23 / 阅读(330) / 评论(0) 分类 探索与发现2013年

In a world of terrifying creatures, being small means facing danger at every turn. If you were a small animal, the late cretaceous would have been an awful time to be around. For a youngster, every day is a struggle to stay alive. Their only chance i

发表于:2019-01-23 / 阅读(320) / 评论(0) 分类 探索与发现2013年

There probably werent many animals of Cretaceous that would dare to try to grab a baby Tyrannosaurus Rex. Quetzalcoatlus could probably manage it. If you see a stork on the Nile today eating a baby crocodile, you can imagine in your mind Quetzalcoatl

发表于:2019-01-23 / 阅读(359) / 评论(0) 分类 探索与发现2013年

When you start off coming out of the egg and youre less than, say, 2 feet long and you are in a world full of predators that are loving to crunch on you, then you need to get big fairly quickly. The future seems bleak for this dinosaur. With its life

发表于:2019-01-23 / 阅读(486) / 评论(0) 分类 探索与发现2013年

Male lions defend their cubs against rivals who see their offspring as future competition for food and mates. So its likely that an intelligent predator like T-Rex would do the same. Compared to prehistoric plant eaters, its cerebrum, the part of the

发表于:2019-01-23 / 阅读(345) / 评论(0) 分类 探索与发现2013年

T-Rex is impressive and it's powerful, but compare to Ankylosaurus, it is relatively lightly built. Protective plates made of bone and cartilage covered this lumbering creature from head to tail. Light, but extremely strong, the hide of Ankylosaurus

发表于:2019-01-23 / 阅读(332) / 评论(0) 分类 探索与发现2013年

And there is something else unusual about a T-Rexs nose. The nostrils are a huge 25 centimeters apart, which means T-Rex can smell in stereo. It can triangulate an odor and pinpoint its exact source. T-Rex could walk into a crowded auditorium and in

发表于:2019-01-23 / 阅读(326) / 评论(0) 分类 探索与发现2013年

One could imagine that the conflict between Tyrannosaurs and Triceratops may have been one of the greatest combats that nature has ever had. And this well-protected herbivore is everywhere. In fact in the Late Cretaceous, Triceratops outnumbered Tyra

发表于:2019-01-23 / 阅读(323) / 评论(0) 分类 探索与发现2013年

Sauroposeidon probably had a brain about the size of a kittens, because it was not, unfortunately, a very smart animal. It didnt have to be. It was a food-processing plant. Sauroposeidons five senses are little more than a life-support system for the

发表于:2019-01-23 / 阅读(323) / 评论(0) 分类 探索与发现2013年

To eviscerate prey, Deinonychus uses both its hands and feet. These were animal that had weapons everywhere you go. Its ridiculous minor weaponry for animal like that size. Its clear its name of all for every reason to be able to dish a lot of damage

发表于:2019-01-23 / 阅读(453) / 评论(0) 分类 探索与发现2013年

But with both parents out searching for food, the nest is left unguarded and exposed. Triceratops may be a plant eater, but with a defenseless baby T. Rex around, it'll make an exception. Quetzalcoatlus is the largest flying carnivore in Earth's hist

发表于:2019-01-23 / 阅读(340) / 评论(0) 分类 探索与发现2013年

Even if the animail managed to survive, the wounds generated from the bite, the prey dinosaur would get weaker and sicker, and the predator could then hunt it down and kill it. Bitten by a T-Rex, and youre downfall, be it now or later. And once you a

发表于:2019-01-23 / 阅读(314) / 评论(0) 分类 探索与发现2013年

It's a digestive process more like those of carnivores. And Sauroposeidon has another trick for growing to mammoth proportions--hollow bones. Its backbone, neck, and ribs have walls just a few milometers thick. Even its limbs are far less dense than

发表于:2019-01-23 / 阅读(344) / 评论(0) 分类 探索与发现2013年

Tyrannosaurus Rex, though, lives in an entirely different world. A male devours a Triceratops carcass. Those powerful jaws smash into the meat of the animal. Those gigantic teeth pierce down through flesh. These well-rooted teeth are there to break i

发表于:2019-01-23 / 阅读(317) / 评论(0) 分类 探索与发现2013年

By Lisa Schlein Geneva 06 October 2006 A Pakistani boy runs past the ruins near his family's refugee tent in Muzaffarabad in the Kashmir region of Pakistan, Sept. 23, 2006 International aid agencies say hundreds of thousands of people in northern Pa

发表于:2019-01-30 / 阅读(456) / 评论(0) 分类 2006年VOA标准英语(十月)

Rescuers continue to pull people out of the rubble, alive, more than one week after a massive earthquake struck southwestern China's Sichuan Province. The latest government figures confirm more than 40,000 people have died and more than 247,000 peopl

发表于:2019-02-07 / 阅读(505) / 评论(0) 分类 英语杂谈
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