标签：Great Migrations 相关文章
THE PRESIDENT: Good morning. This weekend, I will join millions of Americans in one of our favorite national pastimes: fishing. I'm going to be on the Chesapeake Bay. For those who love fishing, the most important thing is not the size of your catch
美国总统电台演说
Migrants from Venezuela May Cause Problem in Brazil 近日，越来越多的委内瑞拉人搬离了这里，以求逃离祖国的经济困难和居高不下的犯罪率。 An increasing number of Venezuelans have moved out of the country recently. T
2017年VOA慢速英语(十二)月
By Leah Krakinowski Recent surveys show many Americans want the nation's doors closed to immigrants. At the same time, President George W. Bush recently proposed an overhaul of the nation's immigratio
VOA2004（下）--世界经济
Lesson 1 Finding fossil man 发现化石人We can read of things that happened 5,000 years ago in the Near East, where people first learned to write. But there are some parts of the world where even now people cannot write. The only way that they can
新概念英语85年上外美音版
And the raptor executes his cool mercy.In the rolling surf, rockhoppers pop home with their garlics full. They take turns shuttling to the sea daily , having tibets of quilt to feed their growing chicks. Once ashore, the rockhoppers trade their long
自然百科2011年
Could it be that drastic water shortage was the reason for the mastodons' epic migrations? Another big piece of this puzzle lies far out to sea. This is the ocean floor. But this isn't rock sprouting out at the bottom. It's wood. It's the remains of
探索与发现2013年
When Continents Collide: The History Of Our Planet It was one of the Earths momentous times. Continents collided. Volcanoes erupted. Ocean currents shifted. Species ran amok. Twenty million years ago, North and South America were arranged in nearly t
英语听力文摘 English Digest
By Jessica Berman Washington 26 October 2006 An international consortium of scientists has completed work on deciphering the genome of the honey bee. They hope the work will lead to a better understanding of one of the earth's most social and ecolog
2006年VOA标准英语（十月）
By Nancy-Amelia Collins Jakarta 17 June 2008 A new report by the International Crisis Group warns of a growing risk of communal violence in Indonesia's eastern most province, Papua. From Jakarta, VOA's Nancy-Amelia Collins has more. Papuanese studen
VOA标准英语2008年（六月）
A group of scientists has unveiled what they say is the most comprehensive study ever of African genes which they say gives new insight into the origins of humans. The genetic study, a compilation of two big studies, confirms theories that modern hu
VOA标准英语2009年(五月)
Welcome to the podcast, President Obama politics, the big problem on the border, let's get started.Tonight in Austin Texas, after an airport meeting that almost did not happen because of politics, the President met with Texas Governor Rick Perry. He
CNN2014年(七)月
Sharks Head Straight Home by Smell嗅觉鲨鱼导航秘诀 Some sea creatures can find their way through thousands of miles of seemingly featureless oceans. Even more impressive is the route that they take. 一些海洋生物能够在茫茫的大海中
2017年Scientific American(二)月
Hi, I am Paddy Kim. Today, were heading to East Africa, famous for sights like the Serengeti Plain, but theres a whole lot more of this place than just safaris(野生动物园) and savanna（大草原）. It is also home to mountain jungles, fiery vo
自然百科2009年
In the war-racked country of Sudan, lies Boma National Park, the largest intact savanna in East Africa. Mile upon mile of what looks like pristine wilderness unfolds. But much of this is an empty paradise. During the Sudan's decades of ruinous civil
自然百科2011年
Satellites Help Explain Zebra Migration 卫星帮助解释斑马的迁徙 Every year, zebras in Botswana begin a 580-kilometer migration looking for food. Even though its an annual event, researchers only had a general idea when it would start and th
VOA常速英语2013年(八月)
By Luis Ramirez Beijing 04 April 2006 Dr. David Nabarro, UN's chief coordinator for avian influenza speaks to journalists in Beijing, China, April 4, 2006 The top UN official for avian influenza says
2006年VOA标准英语（四月）
Highway Crossings Protect Migrating Pronghorns--and Motorists Ever hear of the pronghorn antelope in the American west? Well, its not really an antelopeits actually more closely related to giraffes than to true antelopes. And the last known migration
2018年科学美国人10月
By Paul Sisco Washington 09 April 2007 Watch World Climate report Thousands of climate scientists and government policy administrators from more than 120 countries worked on the report for six years. After a reported all night session on April 5, the
2007年VOA标准英语（四月）
1.The senator confirms John Byran had the CIA after a late struggle doing more presidential power to order drone strikes than his potentials to leave the spot agents. 2.Shuffle new sections against North Korea's UN Security Council condemning its bal
美联社新闻一分钟2013(三月)
The French Prime Minister Manuel Valls says some of those linked to the attacks last week in Paris which killed 129 people took advantage of the migration crisis in Europe to enter France unnoticed. He was speaking on French state television. 巴黎恐
英语听力精选进阶版