They can grow more than two metres long and weigh as much as three men. But the giant tortoises of ice age North America were even larger. Florida does have tortoises today, but on a much smaller scale. This is the gopher tortoise. Tortoises are cold

发表于:2018-12-27 / 阅读(65) / 评论(0) 分类 探索与发现2013年

It's likely giant ground sloths used their claws in a similiar way to hook branches and pull them within reach. Like tree sloths, they were vegetarians and probably not fussy about what they ate, chewing their way through leaves, fruits, twigs and al

发表于:2018-12-27 / 阅读(71) / 评论(0) 分类 探索与发现2013年

This is the Virginia opossum, a tree dweller found throughout many of the southern states. It's the only North American marsupial. The young are born premature and matured in the mother's pouch. And its only close relatives today are found in Central

发表于:2018-12-27 / 阅读(86) / 评论(0) 分类 探索与发现2013年

In The Past, Insects Were Huge! Once upon a time, hundreds of millions of years ago, many insects were much larger than they are today. Scientists have found fossilized remains of dragonflies with wingspans several feet in diameter. Other insects wer

发表于:2018-12-31 / 阅读(67) / 评论(0) 分类 英语听力文摘 English Digest

By David Byrd Washington 02 February 2006 Daron Rahlves He is a three-time medalist at the World Alpine Ski championships. He has beaten the vaunted Austrians on their own course at Kitzbuehel, but Ol

发表于:2019-01-06 / 阅读(167) / 评论(0) 分类 2006年VOA标准英语(二月)

By Luis Ramirez Beijing 10 January 2006 The giant Chinese state-owned China National Offshore Oil Corporation, CNOOC, has reached a deal to buy a 45 percent stake in a Nigerian oil field for more than

发表于:2019-01-07 / 阅读(149) / 评论(0) 分类 2006年VOA标准英语(一月)

By Deborah Block Washington, DC 24 April 2006 watch Wal Mart Banking report The world's largest retailer, U.S.-based Wal-Mart, is hoping to begin its own banking business soon. Critics are concerned i

发表于:2019-01-07 / 阅读(154) / 评论(0) 分类 2006年VOA标准英语(四月)

We'll begin with that breaking story, a deadly fall from one of the tallest roller coasters in the world. Yeah,this is both scary and sad.The mother fell into her death while riding the Texas giant roller coaster at six flags.There were people on the

发表于:2019-01-07 / 阅读(97) / 评论(0) 分类 万花筒2013年

Falling Oil Prices Prompt Russian Economic Fears Khanty-Mansiysk in Siberia - home to around 70 percent of Russias developed oil fields and the source of much of the countrys wealth. Russia produces more than 10 million barrels of oil per day - makin

发表于:2019-01-13 / 阅读(60) / 评论(0) 分类 VOA标准英语2012年(六月)

Britain's Queen Joins Giant Flotilla for Jubilee Celebration A specially outfitted ship carried the 86-year-old queen and her family along the River Thames at the head of a 1,000-boat parade. Rain and cold kept many people away, but tens of thousands

发表于:2019-01-13 / 阅读(76) / 评论(0) 分类 VOA标准英语2012年(六月)

World shares tumbled Monday as the recession worsened in the U.S. and more bad international corporate news was released. In London, banking giant HSBC Holdings announced it was seeking to raise nearly $18 billion from investors and British Prime Mi

发表于:2019-01-13 / 阅读(82) / 评论(0) 分类 VOA标准英语2009年(三月)

Technology's Impact on People's Lives Mixed 科技对人们的生活的影响喜忧参半 Technology is permeating everyday life like never before. Computers, smartphones, 3D printers, new medical devices, sophisticated software, electric cars are no

发表于:2019-01-14 / 阅读(67) / 评论(0) 分类 VOA标准英语2014年(二月)

TransAsia Airways flight GE 222 crashed on the resort island of Penghu in Taiwan Wednesday evening, claiming the lives of 48 people, and injuring 10 others. Xi Jinping, General Secretary of the Communist Party of China Central Committee, has conveyed

发表于:2019-02-05 / 阅读(114) / 评论(0) 分类 CCTV9英语新闻2014年07月

Dinosaur Oil Crisis 恐龙灭绝有关石油危机? 恐龙是距今1亿3千万年前地球上爬行动物的总称。它们的种类很多,身体大小、形状、生活习性各不相同,陆地、海洋、空中都是恐龙类爬行动物的活动

发表于:2019-02-24 / 阅读(97) / 评论(0) 分类 英语听力文摘 English Digest