[00:05.49]Friend or Enemy?'Kill it!' cried Debbie. 'Certainly not,' said Simon. [00:13.74]'Why? You're not frightened of it, are you?It's only an insect.' [00:19.62]'It isn't an insect,Debbie,though it might look like one. [00:24.87]Actually, it's a

发表于:2018-11-30 / 阅读(164) / 评论(0) 分类 高中英语牛津版高一

First up today, we are heading over to Asia, specifically to the East China Sea. You can see it coming up here on this map in just a moment, on one side of it, there is China, on the other side, Japan. There is a chain of islands in the East China Se

发表于:2018-12-24 / 阅读(81) / 评论(0) 分类 CNN2012年(八)月

Every year, millions of monarch butterflies fly thousands of miles to alight in one specific forest in Mexico. How do they know what direction to flutter? Scientists had thought that an insect GPS system in their brains steered them in the right dire

发表于:2018-12-24 / 阅读(95) / 评论(0) 分类 Scientific American(九)月

The world this week-Business 本周经济要闻 General Electric won its battle to buy Alstom's energy businesses, 通用电气赢得了争购阿尔斯通能源业务的战斗, but only after it substantially altered its bid and gave a commitment t

发表于:2018-12-31 / 阅读(79) / 评论(0) 分类 经济学人要闻

Antennae Key to Butterfly Navigation A study in the journal Science shows that monarch butterflies' sun-related directional sensing is governed by antennae, not the brain. Cynthia Graber reports Every year, millions of monarch butterflies fly thousan

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 60秒科学

We`re talking about anything from stone tools to complex machines. A lot of times archeologists have to dig in order to find those artifacts. Not the researchers features in our next report from Nick Glass.They`re using modern technology to try to le

发表于:2019-01-08 / 阅读(98) / 评论(0) 分类 CNN2012年(一)月

Butterflies 蝴蝶 What does a butterfly look like? 蝴蝶是什么样子? A butterfly has four wings and a body, also it has six legs and two antennae. 蝴蝶有四个翅膀,一个身体,六条腿和两条触须。 A butterfly has a very uniqu

发表于:2019-01-10 / 阅读(65) / 评论(0) 分类 与美国小学生一起学英文第6册

Development Report - Secret of DEET Could Lead to New Insect Products Scientists finally discover how the world's most widely used insecticide works. Transcript of radio broadcast: 11 May 2008 This is the VOA Special English Development Report. DEET

发表于:2019-01-11 / 阅读(65) / 评论(0) 分类 VOA慢速英语2008年(五)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. This week, we will tell about a large piece of ice breaking away from Antarctica. We also tell about a study of human emotions and disco

发表于:2019-01-11 / 阅读(68) / 评论(0) 分类 VOA慢速英语2008年(四)月

But even though the insect brain is organized very differently from ours, there are some striking similarities. 虽然昆虫与人类大脑的组成大相径庭,但是仍有很多惊人的相似之处。 For example, most insects have smell detecto

发表于:2019-01-17 / 阅读(73) / 评论(0) 分类 TED演讲教育篇

Then the brilliant masses take to the wing, heading to a place they've never been. Their only map, imprinted on their genes. A mysterious interplay of sun on eyes and antennae, an uncanny sense of magnetic north guides the way. It will take five mont

发表于:2019-01-22 / 阅读(71) / 评论(0) 分类 自然百科2010年

But there is desperation here for the crocs well. Eat well now, and they may survive leaner times for months even a year. It's easy to forget that death is as vital to the herd as life. The young emerge from this brutal baptism stronger and wiser. Ba

发表于:2019-01-22 / 阅读(67) / 评论(0) 分类 自然百科2010年

Science and technology 科学技术 Insect acrobatics 昆虫的绝活 Flipping roaches 非常蟑螂 How cockroaches vanish 蟑螂是怎么消失不见的? ANYONE who has tried to swat a cockroach will know those insects' strange ability, in the hea

发表于:2019-01-30 / 阅读(57) / 评论(0) 分类 经济学人科技系列

Oprah: Iyanla Vanzant's Life Lessons Relationship expert Iyanla Vanzant shared valuable words of wisdom during her 20 Oprah Show appearances between 1998 and 1999. Look back at 10 lessons viewers took to heart. For almost two years, Iyanla helped Opr

发表于:2019-02-02 / 阅读(117) / 评论(0) 分类 阅读空间

For Halloween, Consider the Chocolate Midge As you unwrap a Halloween candy or two, it's worth paying your respects to the real reason for many of the treats: a tiny fly whose trick is to make chocolate possible. They're all in the family Ceratopogon

发表于:2019-02-03 / 阅读(52) / 评论(0) 分类 2018年科学美国人10月

加拿大研究人员开发雷达隐身衣 TORONTO, Nov. 25 (Xinhua) --- Witches and magic may not exist, but Harry Potter's invisibility cloak certainly does. A pair of researchers in the Canadian city of Toronto have developed their very own cloaki

发表于:2019-02-05 / 阅读(110) / 评论(0) 分类 英语新闻

Even now, as Fortey says, it can be startling to go to the right formation of rocks 福泰说,即使现在,要是你来到合适的岩石结构, and to work your way upward through the eons finding no visible life at all, 一个又一个漫长的

发表于:2019-02-17 / 阅读(78) / 评论(0) 分类 万物简史

Science and technology. 科技。 Insect acrobatics. 昆虫的绝活。 Flipping roaches. 非常蟑螂。 How cockroaches vanish. 蟑螂是怎么消失不见的? ANYONE who has tried to swat a cockroach will know those insects' strange ability, in

发表于:2019-02-18 / 阅读(50) / 评论(0) 分类 经济学人综合

2010上海世博会:日本馆之面观 The Japan Pavilion, which is always among the most popular pavilions during previous World Expos, is expected to attract 17,000 visitors every day,The centerpiece performance of the pavilion will be an opera w

发表于:2019-02-22 / 阅读(105) / 评论(0) 分类 实用英语

Science and technology 科学技术 3D manufacturing 3D制造 Print me a phone 给我打印一部电话 New techniques to embed electronics into products 新技术直接把电子元件嵌入产品中 OPEN up any electronic device and inside there are

发表于:2019-02-24 / 阅读(223) / 评论(0) 分类 经济学人科技系列