标签：猛犸象牙化石 相关文章
Study Confirms Unusual Fossils Came from an Animal Scientists say they have confirmed that strange-looking fossils from more than 500 million years ago are remains of an animal. 科学家们表示，他们已经证实来自5亿多年前的怪状化石是
2018年VOA慢速英语(十)月
[00:06.48]species [00:07.92]n.种，类 [00:09.35]extinct [00:10.88]a. 熄灭了的，消亡了的灭绝的，绝种的 [00:12.41]pace [00:13.73]n. 一步，步速，速度 [00:15.05]fossil [00:16.43]n.化石 a.化石的 [00:17.82]extinction [00:19.34]n.熄灭，消亡，灭绝， [00:20.87
大学英语自学教程上
Fossilized Bees Reveal Climate Changes 蜜蜂化石揭示气候变化 LOS ANGELES For millennia, natural tar that seeped from the ground in what is now southern California trapped large and small animals, preserving their fossils and providing scient
VOA标准英语2014年(七月)
A National Geographic researcher and his team have uncovered fossilized remains of 5 ancient crocodile species that lived among dinosaurs some 100 million years ago. One of the crocs had an oversized set of canines, and another had a snout like a duc
自然百科2009年
In the shadow of the Cerro Condor, a 600-meter-high limestone bluff in Patagonia, signs of life are few. But this wind-swept valley in Chubut province of Argentina is becoming one of the world's leading sites for paleontologists. Recent find showed t
自然百科2009年
Fossil 化石 Fossils are the ramains of animals or plants. 化石是动物或植物的遗骸。 They are usually inside of rocks. 它们通常在岩体内。 They are typically more than ten thousand years old. 它们通常有一万多年的历史。
与美国小学生一起学英文第5册
Researchers Announce Discovery of Early Human Ancestor 研究人员称发现人类早期祖先化石 A group of scientists announced Thursday what they say is the discovery of remains from an early ancestor of human beings. 周三，一个科学家小组
2015年VOA慢速英语(九)月
Scientists have uncovered the world's largest snake. A study published in Thursdays edition of the science journal Nature reveals the discovery in Colombia. Measuring about 45-feet long and weighing more than a ton, the so-called Titanoboa would have
自然百科2009年
15 million years ago, New Zealand was a different place. The country was blanketed by dense rainforests and partially submerged under the ocean. Analysis of sedimentary(沉淀性的) rocks has shown that sea temperatures in this part of the world ros
自然百科2009年
Science and Technology 科技 Human evolution 人类进化史 You look familiar 似曾相识 Another piece of humanity's family tree is fitted into place 南方古猿sediba的发现填补了人类家族谱系的关键空白 THE opening scene of Mel B
经济学人科技系列
Science and Technology 科技 Fossil feathers 羽毛化石 Not just for the birds 并非鸟类独有 A trove of fossils sheds light on the evolution of feathers 珍贵羽毛化石的发现能够更好地阐释羽毛的进化过程 THE fossil record i
经济学人科技系列
A team of investigators in the central Mexican state of Queretaro has uncovered the remains of an ancient mammoth over 10 thousand years old. The bones were found in Huimilpan municipality and include tusks, skull fragments and other pieces still to
英语新闻视频
Scientists have found dinosaur-era feathers and evidence of them in fossil impressions before. 科学家早已发现了恐龙时代的羽毛，并拥有其印在化石上证据。 But this is the first time they've discovered a full-feathered tail se
英语新闻
Science and technology 科学技术 Human evolution 人类的进化 You look familiar 你，似曾相识 Another piece of humanity's family tree is fitted into place 确定另一支人类谱系 THE opening scene of Mel Brooks's film History of the Wo
经济学人科技系列
Human evolution 人类进化史 You look familiar 似曾相识 Another piece of humanitys family tree is fitted into place 南方古猿sediba的发现填补了人类家族谱系的关键空白 Sep 10th 2011 | from the print edition THE opening scene
经济学人综合
Human evolution 人类的进化 You look familiar 你，似曾相识 Another piece of humanitys family tree is fitted into place 确定另一支人类谱系 THE opening scene of Mel Brookss film History of the World: Part One dispenses with human ori
经济学人综合
I mention all this to explain why on a gray day in February I went to the Natural History Museum in London to meet a cheerful, vaguely rumpled, very likeable paleontologist named Richard Fortey. 我提这一切，是为了解释为什么我在阴沉沉
万物简史
托福阅读的文章，都有自己的背景，关于托福阅读背景，有的是移民背景，有的是工业革命背景，而在托福考试中，我的托福阅读背景是经常出现的，这些经常出现的托福阅读背景，就是我们
托福英语