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SSS 2008-09-08

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its not often that an incoming college freshman is already starting his own multimillion dollar business. But thats whats happening to Ben Gulak. Hes a

发表于:2019-01-08 / 阅读(100) / 评论(0) 分类 Scientific American(九)月

SSS 2008-08-08

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Ever been woken up by the sound of the refrigerator compressor kicking on? Well, such clumsy heat exchange units featuring long metal coils may be on their way out. Becaus

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(八)月

SSS 2008-11-11

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? If you're too tired to think straight, it might be because parts of your brain are already asleep at the wheel. A team of neuroscientists from Washington State Unive

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 Scientific American(十一)月

SSS 2008-05-07

This is Scientific American's 60-Second Science,I am Steve Mirsky.Got a minute? Its accepted that a large meteor impact 65 million years ago was responsible for the mass extinction of the dinosaurs. Which opened up niches for birds and mammals. But l

发表于:2019-01-08 / 阅读(84) / 评论(0) 分类 Scientific American(五)月

SSS 2008-07-02

This is Scientific American's 60-second Science, I am Karen Hopkin. This'll just take a minute. Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources, including fossil fuel production and even

发表于:2019-01-08 / 阅读(71) / 评论(0) 分类 Scientific American(七)月

SSS 2009-05-01

This is Scientific Americans 60-second Science. Im Steve Mirsky.Got a minute? The US Consumer Product Safety Commission and DND Imports of Los Angeles recently announced a voluntary recall of something called the dinosaur Era Two Hunting Dinosaur Pla

发表于:2019-01-08 / 阅读(84) / 评论(0) 分类 Scientific American(五)月

SSS 2009-05-15

This is Scientific Americans 60-second Science, Im Steve Mirsky, got a minute? Friends who had a swimming pool also had a little sign posted that said, We dont swim in your toilet. Please dont pee in our pool. Despite such widespread admonitions, 4/5

发表于:2019-01-08 / 阅读(77) / 评论(0) 分类 Scientific American(五)月

SSS 2009-03-10

This is Scientific American's 60-Second Science. I'm Christie Nicholson. This will just take a minute. So check this out: Hi my name is Adi Rajagopalan, I'm going on 18 in a few days, and my project was Modelling Synergistic Cellulolytic-Hemicellulol

发表于:2019-01-08 / 阅读(77) / 评论(0) 分类 Scientific American(三)月

SSS 2009-02-17

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Even monkeys know when theyre getting a bad deal, said primatologist Frans de Waal at the annual meeting of the American Association for the Advancement of Science in

发表于:2019-01-08 / 阅读(90) / 评论(0) 分类 Scientific American(二)月

SSS 2009-01-02

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mosquitoes carry nasty diseasesdengue fever, west nile, malaria. But the microbes that cause those diseases dont attach themselves to the mosquitoes an

发表于:2019-01-08 / 阅读(111) / 评论(0) 分类 Scientific American(一)月

SSS 2010-04-05

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The National Safety Council estimates that 28 percent of all highway accidents and deaths are caused by drivers paying poor attention to the road because theyre holding

发表于:2019-01-08 / 阅读(69) / 评论(0) 分类 Scientific American(四)月

SSS 2010-06-11

This is Scientific American's 60-Second Science, I am Steve Mirsky. Got a minute? With the World Cup soccer tournament underway in South Africa, a couple of things for the science-interested audience to watch for. First, the games will feature a new

发表于:2019-01-08 / 阅读(89) / 评论(0) 分类 Scientific American(六)月

SSS 2011-05-11

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? One way advertisers convince us to buy something is to remind us that we've enjoyed their product before. But unfortunately, we can have fond memories of a pro

发表于:2019-01-08 / 阅读(134) / 评论(0) 分类 Scientific American(五)月

人教版小学英语五年级下--Lesson 19

Lesson 19 [00:10.45]第十九课 [00:09.95]Just speak [00:11.94]说 [00:13.94]Mark comes from Britain. [00:15.17]Mark来自英国. [00:16.40]Mark and his friend, Barry, are showing some photos to Gao Wei and his classmates. [00:19.34];Mark和他的朋友

发表于:2019-01-09 / 阅读(161) / 评论(0) 分类 人教版小学英语五年级

小学英语陕旅版四年级下Lesson12

[00:19.17]Listen and read [00:23.14]M:Tom,how manysubjects do you have at school? [00:29.00]T:Let me see.We learn Chinese,maths,English,science, [00:37.85]PE,music,art and ME,eight subjects all together. [00:46.99]M:Which is your favourite subject? [

发表于:2019-01-09 / 阅读(181) / 评论(0) 分类 小学英语陕旅版四年级

UNIT 4 Look into Science! Lesson 28: Fill My Plate

[ti:UNIT 4 Look into Science! Lesson 28: Fill My Plate] [0:00.567]UNIT 4 第四单元 [0:02.629]Look into Science! 走进科学！ [0:04.999]Lesson 28: 第28课： [0:07.524]Fill My Plate 把我的盘子装满 [0:15.770]It's time for lunch! 该吃午饭

发表于:2019-01-09 / 阅读(209) / 评论(0) 分类 河北教育初中英语（初中起点）八年级下册

VOA慢速英语2010年-Science in the News_ How to Avoid Carb

FRITZI BODENHEIMER: This is SCIENCE IN THE NEWS in VOA Special English. I'm Fritzi Bodenheimer. FAITH LAPIDUS: And I'm Faith Lapidus. Winter conditions are affecting many countries in Earth's northern hemisphere. Winter brings cold weather and, with

发表于:2019-01-11 / 阅读(338) / 评论(0) 分类 2010年慢速英语(二)月

【有声英语文学名著】战争与和平 Book 9（10）

Chapter 10 - Prince Andrew is introduced to Pfuel This letter had not yet been presented to the Emperor when Barclay, one day at dinner, informed Bolkonsky that the sovereign wished to see him personally, to question him about Turkey, and that Prince

发表于:2019-01-18 / 阅读(135) / 评论(0) 分类 有声英语文学名著

VOA慢速英语20060822b

SCIENCE IN THE NEWS - Women Are Able to Read More in a Man's Face Than He Might ThinkBy Brianna Blake Broadcast: Tuesday, August 22, 2006 VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English.

发表于:2019-01-30 / 阅读(121) / 评论(0) 分类 2006年慢速英语（八）月

Comet LINEAR

66 神秘的彗星

发表于:2019-01-30 / 阅读(129) / 评论(0) 分类 科技之光
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