标签：species 相关文章
Passage Three 17. A) Whether it can be detected and checked. B) Whether it will lead to widespread food shortage. C) Whether global warming will speed up in the future. D) Whether it will affect their
【CET 12-24备战】六级听力
In the immortal words of Michael Corleone in The Godfather, Part II, My father always taught me: keep your friends close, and your enemies closer. Perhaps no creature has taken this advice more literally then the remora, also known as the sucker fish
初学者听力文摘精选
Ladies and gentlemen, Never before have we had so many different ways to talk to one another. 女士们，先生们。我们同彼此交流的途径从未像今天这样多元化。 In the distant past, written documents would be carried by hand acro
欧美名人演讲
The Future Of Males Have you ever heard predictions that one day women will be able to have babies without men? It turns out that some species of the Whiptail lizard have figured out how to do this and completely eliminated the male sex. Females Clon
英语听力文摘 English Digest
Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod
(科普英语)Earth and Sky
And then came an even more exciting find, in a cave called Lascaux, a gallery of pictures of breathtaking beauty. As more and more paintings came to light, they revealed prehistoric artists had painte
人、艺术、世界
AGRICULTURE REPORT - Importance of Biodiversity By Mario Ritter Broadcast: Tuesday, October 26, 2004 This is Gwen Outen with the VOA Special English Agriculture Report. An environment that is biologic
农业与发展
69 非洲象与亚洲象之间的差别 SCIENCE REPORT - September 19, 2001: African ElephantsBy Nancy Steinbach （Start at 1'02
自然探索
Everglades is a Wild World Unlike Any Other 湿地是野生世界不可替代的存在 From VOA Learning English, this is Science in the News. Im Faith Lapidus. And Im Shirley Griffith. This week, we tell about Everglades National Park in the America
2013年VOA慢速英语(十一)月
Population Growth It is well-known that there has been a drastic increase in world population. But it is probably less well-known that the extinction rate of wildlife species is experiencing a parallel trend. Take the United States for instance. In 1
英语专业四级听力50篇
This Frog Can't Hear Its Own Calls In the frog world, romance is often accompanied by a song. It's the norm. The vast majority of frogs have males calling to attract females. 在青蛙的世界，浪漫总与歌声相随。这是一种常态。绝大多
2017年Scientific American(十)月
Even though, coral reefs cover less than 1% of world's oceans. They contain a quarter of all known marine life. And the Great Barrier Reef is the biggest of them all. I still vividly remember my first dive on a coral reef over 20 years ago. And the m
自然百科2014年
A new species of flying squirrel has been discovered in the jungles of Laos (map). When you hear of a new species being discoveredyou expect it to be small and hard to find. But as the name implies, the Laotian giant flying squirrel is not very tiny.
轻松英文阅读
I really worry about our oceans. Not many people understand how important the oceans are. Every day we hear stories about the rainforests and the ice caps, but we rarely hear about the oceans. They form most of the Earths surface and most of the worl
听一分钟英文-O
Tenontosaurus was bigger and certainly heavier. 腱龙体型庞大且笨重。 Tenontosaurus didn't necessarily make a mistake. 它不一定是犯了致命的错误。 It was numbers that took him down. 它是败给了庞大的数量。 One dinosaur
侏罗纪搏击俱乐部
Megalodon. The largest carnivorous fish ever to prowl the oceans. 巨齿鲨。海洋中出现过的最大的掠食性鱼类。 Megalodon as a species, it receives a lot of interest. 巨齿鲨这个物种，引发了很多人的兴趣。 It is the clo
侏罗纪搏击俱乐部
When Feeding Birds, Think Safety and Health Feeding birds is a popular way to watch wildlife during the winter months. But many bird experts say the experience is often more pleasant for people than for birds. And it might even put wild birds at risk
2019年VOA慢速英语(二)月
Track One I am a bird watcherI have been watching birds since I was four years old in the UK and Denmark where I lived later 我是一个野鸟观察者自我四岁起在就英国以及随后居住的丹麦观察鸟类。 When I came to Beijing I fou
英语PK台
Come into my parlor, said the spider to the fly. At least that's usually the way it goes. In most showdowns between spiders and flies, the odds weigh heavily in the spider's favor. Today, however, we'll look at a few species of fly that manage to tur
英语时差8，16
A growing number of the Earths insect population now exists only in collections like these. Nobodys seen those 400 years. A new review of over 70 studies of insect populations suggests that human pressures are causing insect populations to plummet by
VOA标准英语2019年(二月)