Two ceiling-mounted video surveillance cameras are seen as a No. 1 subway train arrives at the 34th Street station in New York City, 30 March 2010 The massive New York City public transit system has stepped up security measures after two suicide bomb

发表于:2018-12-08 / 阅读(48) / 评论(0) 分类 VOA标准英语2010年(三月)

DIALOG 69 1--The other night we were watching TV and the strangest thing happened. 2--Really?What? 1--It was during that thunderstorm we had. You remember. It poured down rain and there was a lot of l

发表于:2018-12-26 / 阅读(131) / 评论(0) 分类 英语经典听力对话

This trail leads to the cave and the freshly dead bison, just out of reach. Hunger makes the bear risk everything. He falls and joins the bison in its tomb. Now he can eat his fill. but after that there's no way out. ln time he'll be just one more ic

发表于:2018-12-27 / 阅读(76) / 评论(0) 分类 探索与发现2012年

13,000 years ago, the ice age cheetah was the pronghorn's greatest enemy. And pronghorn would have needed all their amazing speed. The American cheetah was larger than its African cousin. But it had the same Achilles' heel. A cheetah's high-performan

发表于:2018-12-27 / 阅读(52) / 评论(0) 分类 探索与发现2012年

Larger than any lion alive today, this would have been an awesome predator. These caves were probably its winter den. With such abundant game down on the plains, this hunter's life must have been pretty good. Sheer size and power and the benefit of l

发表于:2018-12-27 / 阅读(47) / 评论(0) 分类 探索与发现2012年

So let's go back in time, back 13,000 years to relive one day in the life of North America's great ice age plains. It's early morning at the end of a long, hot summer. Even major rivers are beginning to run low. Colombian mammoth herd follows the riv

发表于:2018-12-27 / 阅读(87) / 评论(0) 分类 探索与发现2012年

The scene is set for a daily ice age drama. Only the very largest are safe now. Patience is the key, the lionesses close in, waiting for their opportunity. The first charge causes chaos, but this is just what the lions want. ln the melee, they've alr

发表于:2018-12-27 / 阅读(45) / 评论(0) 分类 探索与发现2012年

Maya Angelou is part of the fabric of modern America. She has told her story of being a key part of the civil rights movement through poetry, novels and film. She is best known for her six autobiographies, most notably I Know Why the Caged Bird Sings

发表于:2019-01-01 / 阅读(103) / 评论(0) 分类 各国名人英文介绍

Even the mastodon is buried here, a long dead relative of modern elephants. This was once a bear, but not like any bear in North America today. Claw marks gouged into the cave wall showed the bear was not killed direct by the fall. It made a desperat

发表于:2019-01-23 / 阅读(90) / 评论(0) 分类 探索与发现2012年

The death throes of the last great ice age left a signature that we can read today. These giant potholes were left behind by blocks of buried ice that melted, leaving hollows that later filled with water. For thousands of years since then, they've be

发表于:2019-01-23 / 阅读(75) / 评论(0) 分类 探索与发现2012年

Mud from the ancient riverbanks is good for building nests. lt also holds more evidence that will help us to reconstruct the ice age past. Every now and then,new clues surface, hinting at what else might lie beneath. ln this dried-up pond in South Da

发表于:2019-01-23 / 阅读(81) / 评论(0) 分类 探索与发现2012年

The site was once a spring-fed pond, full of water. Mammoths were tempted in to drink. But when they tried to climb back out, the banks were steep and slippery. Just like the short-faced bear imprisoned underground, some became trapped. Scavengers wo

发表于:2019-01-23 / 阅读(83) / 评论(0) 分类 探索与发现2012年

The store of pollen paints a picture of the plains of 13,000 years ago, a picture that looks very different from the open prairie grassland of today. But why did this region look so different back then? The ice sheets to the north, although retreatin

发表于:2019-01-23 / 阅读(101) / 评论(0) 分类 探索与发现2012年

The Osage orange seeds were carried far across the plains, before being deposited, pre-packed in their fertilizer growbags, ready to take root. As the ice age waned, the milder climate and the mixed vegetation meant the plains were able to support a

发表于:2019-01-23 / 阅读(82) / 评论(0) 分类 探索与发现2012年

Bison calves are born in summer and can run within a few hours of their birth. They have no choice. The herd won't wait in its eternal quest to find new grazing. Smaller grazers are still found here, too. But they stay put instead of wandering the pl

发表于:2019-01-23 / 阅读(68) / 评论(0) 分类 探索与发现2012年

Colombian mammoths had to feed almost round the clock to fuel their bulky bodies. But as the ice age ended, food was not the mammoths' biggest problem. A new and deadly predator began to infiltrate the plains, a match for any prey, even the mighty ma

发表于:2019-01-23 / 阅读(90) / 评论(0) 分类 探索与发现2012年

A lone wolf weighs as much as four coyotes, but one on one it's still no match for a bison. Wolves, though, live and hunt in packs of up to 15 and when they launch a cooperative attack, they're devastating. First they get the bison on the run, then f

发表于:2019-01-23 / 阅读(86) / 评论(0) 分类 探索与发现2012年

As North America emerged from the grip of the last ice age, the door was opened to outsiders for the very first time. As these early immigrants pushed their way south, they found themselves in a land of an unimaginable opportunity, overflowing with g

发表于:2019-01-23 / 阅读(61) / 评论(0) 分类 探索与发现2012年

歌曲: Take Back Yesterday 艺人: Christian Ingebrigtsen 音乐星级: ★★★★ 所属专辑: Take Back Yesterday 发行年代: 2005 风格: Pop 介绍: 初次看到这个名字,你也许会有些陌生,可如果说到他单飞前的组合A1,相信很多人都会知道他了.之前在组合里时,他

发表于:2019-02-05 / 阅读(119) / 评论(0) 分类 音乐咖啡厅

An Ingenious Love Letter 一封绝妙的情书 There once lived a lad who was deeply in love with a girl, but disliked by the girls father, who didnt want to see any further development of their love. The lad was eager to write to the girl, y

发表于:2019-02-07 / 阅读(83) / 评论(0) 分类 阅读空间