标签：predators 相关文章

SSS 2008-06-02

This is Scientific American's 60-Second Science. I am Karen Hopkin. It will just take a minute. Picture a sloth and what do you see? Some slow-moving, hairy beasts just hanging around, maybe even catching some Zs, and thats just your husband. OK, ser

发表于:2019-01-08 / 阅读(82) / 评论(0) 分类 Scientific American(六)月

SSS 2008-05-02

Podcast is sponsored from the People of American Chemistry who provide the plastics, medicines and innovations that make life modern. Learn more at americanchemistry.com. This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll ju

发表于:2019-01-08 / 阅读(95) / 评论(0) 分类 Scientific American(五)月

SSS 2010-07-08

More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the growth of corals. And it turns out acidic seawater also makes clownfish and damselfish suicidally bold and reckless, accor

发表于:2019-01-08 / 阅读(84) / 评论(0) 分类 Scientific American(七)月

SSS 2010-01-05

Sometimes it pays to look like a pile of poop. At least if youre a tasty caterpillar trying to avoid getting eaten by hungry birds. Because a study in the journal Science shows that even young chicks tend to overlook caterpillars disguised as dung. A

发表于:2019-01-08 / 阅读(82) / 评论(0) 分类 Scientific American(一)月

SSS 2012-02-09

This Scientific Americans 60 senconds science. I'm Cythia Graber. This will just take a minute. How did the zebra get stripes. One theory holds that stripes help confused predators. But stripes might be primarilly to protect zebras from ferocious ins

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 Scientific American(二)月

美联社新闻一分钟 AP NEWS 2007-12-06

1. A lawyer for detainees at Guantanamo Bay says the issue of whether they have the legal right to hearings in civilian courts is a fundamental test of the American justice system. At least two justices questioned whether detainees had any right to

发表于:2019-01-08 / 阅读(126) / 评论(0) 分类 美联社新闻一分钟2007

南极岛屿上罕见的黑化企鹅

Rare black penguin in the Antarctic islands The penguin, believed to be suffering from a condition known as melanism, was spotted on Fortuna Bay, a sub-Antarctic island of South Georgia, about 860 miles off the Falklands. 这只被认为患有黑化症

发表于:2019-01-08 / 阅读(53) / 评论(0) 分类 英语笔译

UNIT 2 Plant a Plant! Lesson 16: Unit Review

[ti:UNIT 2 Plant a Plant! Lesson 16: Unit Review] [0:00.193]UNIT 2 [0:01.853]Plant a Plant! [0:03.512]Lesson 16: [0:05.287]Unit Review [0:06.831]Ⅰ. Building Your Vocabulary [0:10.111]A. Fill in each blank with the proper word from the list. Use the

发表于:2019-01-09 / 阅读(236) / 评论(0) 分类 河北教育初中英语（初中起点）八年级下册

名校励志英语演讲 114:21世纪的挑战(8)

Last year, President Jiang and I asked senior Chinese and American law enforcement officials to step up our cooperation against these predators, to stop money from being laundered, to stop aliens from being cruelly smuggled, to stop currencies from b

发表于:2019-01-18 / 阅读(55) / 评论(0) 分类 名校励志英语演讲

TED演讲：揭露海底惊奇(3)

Cuttlefish. I love cuttlefish. This is a Giant Australian Cuttlefish. 墨鱼，我很喜欢墨鱼。这是一只巨型澳大利亚墨鱼。 And there he is, his droopy little eyes up here. But they can do pretty amazing things, too. 看它，看它那双

发表于:2019-01-18 / 阅读(43) / 评论(0) 分类 TED演讲教育篇

英语听力：自然百科 走进西藏 tibet—13

In such a frugal environment, the Pika's farming helps to kickstart the food chain. But the Pika itself is a very tasty morsel. Its presence has enabled an uneasy relationship to develop between the two plateau most opportunistic predators, the fox a

发表于:2019-01-22 / 阅读(198) / 评论(0) 分类 自然百科2010年

长颈鹿：长得高睡个觉也不容易啊

These towering beasts look like they need a comfy mattress but shut-eye's not a giraffe's biggest concern. 长得像塔一样的长颈鹿看起来很需要一张舒服的床垫，不过睡觉不是长颈鹿要操心的大事。 Just looking at these

发表于:2019-01-26 / 阅读(123) / 评论(0) 分类 阅读空间

经济学人123:生态学里应用上了化学技术

Science and Technology Animal behaviour Drip-feeding 科技 动物行为 滴定进食 Ecology raids the techniques of chemistry 生态学里应用上了化学技术。 BIOLOGISTS are sometimes accused of physics envyand there is truth in this accusat

发表于:2019-01-26 / 阅读(91) / 评论(0) 分类 经济学人科技系列

【荆棘鸟】第四章 05

有的蜘蛛大得吓人，全身毛哄哄的，腿胯就有好几英寸。有的躲在厕所里不显眼的地方，看上去又黑又小，实际却能致人死命；有的盘踞于像车轮一样张褂在树与树之间的巨大的蛛网上；有的

发表于:2019-01-29 / 阅读(63) / 评论(0) 分类 荆棘鸟

英语听力：Wild China 美丽中国 -9

Geng's net is a strange tubular contraption with a closed-off end. More than a hundred fishermen make their living from the lake. Its mineral-rich waters are highly productive and there are nets everywhere. The next morning, Geng returns with his son

发表于:2019-02-02 / 阅读(67) / 评论(0) 分类 英语听力：文化博览2008年

VOA标准英语2009年-Going Where the Dinosaurs Roamed in th

Experts urge 'Westward Ho!' for finding the best dinosaur treasures Joseph Mok | Thermopolis, Wyoming 07 December 2009 The Archeopteryx, a flying dinosaur about the size of a modern pigeon, is on display at the Wyoming center The gigantic brachiosaur

发表于:2019-02-04 / 阅读(50) / 评论(0) 分类 VOA标准英语2009年(十二月)

游客与树懒自拍 萌照走红网络

IS this the world's first ever 'slofie'? 这是世界上第一张树懒拍吗？ A man used his selfie stick for a brilliant snap with an a happy creature while trekking through the forest in South America. 一名男子在南美丛林徒步旅行时，

发表于:2019-02-09 / 阅读(68) / 评论(0) 分类 阅读空间

托福增强口语连贯性的六大原则

连贯性是新托福口语评分标准中的一个非常重要的因素，它指的是托福口语答案中信息点之间的衔接是否自然流畅。以下归纳整理的资料可以帮助考生增强口语回答连贯性的六条指导原则。

发表于:2019-02-13 / 阅读(52) / 评论(0) 分类 托福英语

动物奇葩睡眠习惯：海獭睡觉手牵手

From sleeping standing up to shutting down half of their brain, animals have some strange sleeping habits. 动物们有一些奇特的睡觉习惯，有的站着睡觉，有的一半大脑休息。 Now some of these more unusual habits, from napping

发表于:2019-02-18 / 阅读(55) / 评论(0) 分类 阅读空间

经济学人250:谁吃了恐龙 What Ate Dinosaurs?

What ate dinosaurs? 谁吃了恐龙 Old crocs 古鳄鱼 Even in their heyday, dinosaurs were not quite as dominant as popular myth makes them out to be 即便是在全盛时期，恐龙并非像民间传说所理解的那样占绝对统治地位 ONE

发表于:2019-02-24 / 阅读(330) / 评论(0) 分类 经济学人综合
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