标签:fossil 相关文章
Global warming may or not be the great environmental crisis of the 21st century, butregardless of weather it is or isn't we won't do much about it. We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid
Couldnt we go up that ladder, asked Benny, and look in the hole? Not yet, young man, said Dr. Osgood. He pushed up his glasses. We dont want any more accidents. When we get the staging done, it will be safe for any of you to get up to the cave. Mr. A
14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a
This is the VOA Special English Development Report. Charles Rioba is an engineer and inventor in Kenya. He and his company, Solar World Limited, have developed a product called the PowerPack. The PowerPack is a small solar-lighting system. The devic
Once again it was trilobites that provided the clue, 又是三叶虫提供了线索, in particular that seemingly mystifying appearance of different types of trilobite in widely scattered locations around the globe, all at more or less the same tim
Idiom: On good terms 人与人之间关系融洽,和谐 Hit the book: Photovoltaic Face up to Fossil fuel Catastrophic Destruction Burning question Conversion Promising
Oil is good and bad. Its good because it helps our energy needs. Its bad because it causes pollution. Oil is a fossil fuel. Burning it produces carbon dioxide (CO2). This is one of the biggest causes of global warming. There isnt much oil left in the
World Car-Free Day is a very important holiday on the environmental calendar. Every September 22, governments, green groups and ordinary citizens highlight the damage cars are doing to the Earth. The day is a reminder that we do not need to rely so m
(WA-LC) Well, if there are no more questions I would like to continue our discussion of human evolution by looking at Homo erectus, the earliest of our ancestors who stood upright. Homo erectus lived about one and a half million years ago and was gi
AMERICAN MOSAIC - A Listener Question / A Lost and Found Tree / Music by Eric Felton and his Jazz Orchestra By Broadcast: Friday, March 04, 2005 (MUSIC) DOUG JOHNSON: Welcome to AMERICAN MOSAIC, in VO
Theres nothing like a good steak. And our Australopithecus afarensis ancestors apparently felt the same way. Because new discoveries from Ethiopia show that what was likely the species of the famous fossil Lucy used stone tools to butcher meat from b
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。
BOB DOUGHTY: I'm Bob Doughty. FAITH LAPIDUS: And I'm Faith Lapidus with EXPLORATIONS in VOA Special English. Today we tell about a scientific research area in the United States. It is filled with the remains of ancient animals. This unusual place is
People feel powerless, and they are tired of not being heard. 群众很多时候都会觉得自己有心无力,他们再也不希望自己的呼声被无视了。 So what we do is concrete things, 所以我们要做的是基础观念的建立, an
So what comes next? The people. 那么接下来呢?我们的百姓。 How do we get people to own this? 我们如何才能让人们去接受这个想法? How do we get people to believe that it's possible to build a society without fossil fuels? 我
This is scientific america 60 seconds science i'm cristfor dediother. got a minute?46 million years ago, northwest mountainer was traceable forth of gaint fers,conifers,and ginkgoes. tiny primites leave there as did right knows and horses in crocoss.
18 科技新闻摘要(七) DATE=6-26-01 TITLE=SCIENCE IN THE NEWS #2130 - Digest BYLINE=Staff VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Spec
EXPLORATIONS - Colorado National Monument By Paul Thompson Broadcast: Wednesday, April 07, 2004 (THEME) VOICE ONE: This is Faith Lapidus. VOICE TWO: And this is Steve Ember with EXPLORATIONS in VOA Sp
第一部分 阅读理解 (75分) Passage 1 CATV is a short way of saying
21 Life Goes On 第二十一章 生命在前进 It isn't easy to become a fossil. 要变成化石可不容易。 The fate of nearly all living organismsover 99.9 percent of themis to compost down to nothingness. 几乎所有的生物其中的99.9%以上