英语听力：自然百科 南极物种大发现

Researchers have made some interesting discoveries near Antarctica. A team of scientists from the British Antarctic Survey and University of Hamburg have published the first comprehensive inventory of sea-and-land animals, near the tip of the Antarct

北师大版高中英语模块7--Unit 22 lesson1-2

[00:00.80]When the atmospheric concertrations [00:03.16]of these gases increase, however, [00:05.84]more heat is trapped and the Earth's [00:07.92]temperature rises. [00:10.37]Over the last 100 years, [00:13.01]the global average temperature [00:15.1

英文书摘精选 为什么明明是热的却让人感到冰冷

Ow! Why Hot Feels Cold 噢！为什么明明是热的却让人感到冰冷呢？ Kids dont try this at home! 小孩子不要在家尝试以下实验！ Have you ever dipped your toe into a very hot bath and felt a flash of icy cold just before you re

【英语时差8,16】肘部和眼球的愈合

Healing Elbows And Eyeballs A scratch to the surface of your eye heals quite rapidly, often in a matter of minutes. But a surface scratch on your elbow takes days rather than minutes to heal. The reason for these different rates of healing is directl

英语听力：探索发现 科学新发现：我们的大气层-12

Our atmosphere is in constant motion; the moving air that causes our weather circulates between the ground and 50,000 feet. It is the sun that drives this movement. When solar energy reaches earth, it heats the surface and atmosphere, but it does so

英语听力文摘 English Digest 607、气泡制造

Even as adults we still enjoy blowing bubbles, dont we? If youve ever wondered why blowing on a thin film of soapy water creates bubbles, this is your lucky day. All liquids have a property called surface tension. Take water, for example. Water molec

万花筒 2013-07-04&07-08 探索太阳：NASA发射一颗新型太阳观测卫星

-Im Chris Kaufman and I here with Justin Kasper, who works at Smithsonian, hes an astrophysicist at the Smithsonian. And he's won a project thats gonna launch a probe at the sun, specifically the Solar Wind Electrons Alphas and Protons investigation,

VOA标准英语2014--Study: Warmer World Will Produce Fewer Clou 气候变暖导致云层变少

Study: Warmer World Will Produce Fewer Clou 气候变暖导致云层变少 With rising global carbon emissions, the planet will heat up and cloud cover will dissipate, according to a new study. The concentration of heat-trapping carbon dioxide in the

VOA标准英语2016--“智能”绷带有助更快治愈伤口

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

美国科学60秒 SSS 2013-03-04

this is Scientific American's 60 seconds' Science, i am Karan Hawking. This will just take a minute. Secret feeling chilly? Well, they may be a solution. Because researcher has generated genetic engineering mice: the kent field the cord. They worked

美国科学60秒 SSS 2013-05-07

When summer hits, I dread jogging outside. But a study finds that elephants can be in true danger in the heat. As creatures get bigger, they have smaller surface area to body volumn ratios. Fully-grown Asian eleplants thus pack a lot of mass into a b

研究:喝酒暖身或许是错觉

Contrary to popular belief, alcohol does not make you warmer. It may give you the feeling that youre getting warmer, but thats just an illusion: really, alcohol makes you more susceptible to the cold. 很多人都认为喝酒可以暖身，其实这种

PBS高端访谈:鲨鱼皮可能会成为抵抗超级细菌的秘密武器

JUDY WOODRUFF: Now: sharks. Just saying the word can send shivers down the spines of some, but as Hari Sreenivasan found in this report, studying their skin could be key to fighting diease and is on the cutting edge of the larger push announced at th

IBM制作出世界上最小的电影

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

人体为什么会出臭汗?

What's sweat? 什么是汗水？ Your body works best when its temperature is about 37? Celsius. When your body gets hotter than that, your brain doesn't like it it wants your body to stay cool. So the part of your brain that controls temperature, ca

全球气温或达到历史新高

WASHINGTON, June 23 (Xinhua) -- Last month was the hottest May since record keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration (NOAA) said Monday. 图片1 The combined average temperature over global land and ocean surfac

英语听力—环球英语 1211 Staying Safe in Hot Weather

Voice 1 Welcome to Spotlight! I'm Liz Waid. Voice 2 And I'm Nick Page. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Storms. Floods. Mudslides. Tsunamis

英文作文-小学Look at the Yangtze River

Today, we came to the city of Wuhu in Anhui, Wuhu Yangtze River side is a beautiful city. Good morning, bright red rising sun, the horizon of Yunxia red. Zhaoxia magnificent in the vast Jiang Yinghong surface. Like a fairy of the Red Silk Cut, the ri

英语听力文摘 English Digest 672 为什么明明是热却感到冷

Ow! Why Hot Feels Cold Kids dont try this at home! Have you ever dipped your toe into a very hot bath and felt a flash of icy cold just before you realize that its really burning? After you pull your toe out, you might wonder what causes very hot wat

关节疼痛真的可以预测天气吗

Maybe. A change in barometric readings may be part of the reason: Atmospheric pressure often drops right before bad weather sets in; this shift could cause body tissue to expand, which can lead to swelling and pain. 也许吧，气压变化有可能是