英语口语1+1:Come hell or high water

VOA标准英语2014--新的太阳能电池减少生产中对环境的危害

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

【英语时差8,16】急速冷冻

Have you ever noticed how frozen vegetables bought at a supermarket tend to cook up like fresh ones; retaining much of their firmness, while cooked home frozen veggies tend to be softer and mushier? Well, this difference is due to the different freez

英文书摘精选 What Kind Of Dogs Are Sled Dogs?What Are Blisters?什么是水泡?

Remember that hit song from the 80s that featured the chorus: And I would walk five hundred miles / and I would walk five hundred more / Just to be the man who walks a thousand miles / to fall down at your door? What sounds romantic in pop song fanta

英语听力文摘 English Digest 647 水泡是什么？

What Are Blisters? Remember that hit song from the 80s that featured the chorus: And I would walk five hundred miles / and I would walk five hundred more / Just to be the man who walks a thousand miles / to fall down at your door? What sounds romanti

原版英语小短文 149. Cancer Cells or Fat Cells?

Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s

英语短文：Cells and Temperature

英语短文：Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

VOA慢速英语2010年-SCIENCE IN THE NEWS - 'Organ Printers'

BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. BOB DOUGHTY: And I'm Bob Doughty. Today, we will tell how technology could help doctors meet demand for transplant organs. We also will tell about a scientific effo

VOA标准英语2010年-New Way of Making Solar Cells Promises

New design produces flexible panels using only 1-2 percent as much silicon Art Chimes | Washington, DC 19 February 2010 You can use 100 times less silicon. And that's potentially very significant. Harry Atwater Schematic diagram of the light-trapping

英语听力：自然百科 圣河之旅 The Nile尼罗河—14

This is Arerwoha, arebit for the awaisis. It's a twenty two thousand acre state in their farm that uses more than 8 million Gallons water from the Nile every day. It's a model that manager A thinks could be replicated along the link for the river. Lo

科学美国人60秒 SSS Water Bears' Super Survival Skills Give Up Secrets

Forget cockroaches. Forget Superman. Forget any other tough-as-nails creatures youve ever heard of. The most indestructible multicellular organisms on Earth are undoubtedly tardigradesmicroscopic eight-legged aquatic invertebrates also known as water

Nasal Stem Cells Help to Cure Infant Hearing Loss

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

pbs高端访谈:危险化学品六价铬污染美国饮水系统

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

Stem Cells in Fat

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

SCIENCE IN THE NEWS #2123 - Digest

15 科技新闻摘要（四） DATE=5-8-01 TITLE=SCIENCE IN THE NEWS #2123 - Digest BYLINE=Staff VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Sarah Long with Science in the News, a VOA Speci

学个词Learn a Word 第435期 Clear-cut

今天我们要学的词是clear-cut。 Clear-cut, 是清楚的，明确的。There was no clear-cut winner in the debate, 这场辩论没有明确的胜利者。Last year's championship team is not the clear-cut favorite for this season, 去年的冠军

每日一词【435】clear-cut：清楚的，明确的

今天我们要学的词是clear-cut。 Clear-cut, 是清楚的，明确的。There was no clear-cut winner in the debate, 这场辩论没有明确的胜利者。Last year's championship team is not the clear-cut favorite for this season, 去年的冠军

为什么人夜晚睡觉不会口渴

The body's internal clock helps to regulate a water-storing hormone so that nightly dehydration or trips to the toilet are not the norm, research suggests. In an article published in Nature Neuroscience today, neurophysiologists Eric Trudel and Charl

【英语时差8,16】蜂蜜：天然保鲜剂（上）

Leave it on the shelf too long and honey begins to crystallize. Heating the honey returns it to its original condition, but if you add water, you could ruin the honey completely. Thats because honey, which is a preservative in its original state, fer

CCTV9英语新闻：中国的环境退化

To talk more about China's environmental protection targets, we have Wu Changhua, the Greater China Director of the Climate Group. But before we start, let's take a look at a set of numbers to have a clearer picture of how bad the environment is. Air