SSS 2008-02-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. Next time you are shoveling snow off your walk, don't blame the weatherman, blame bacteria. Because an international team of scientists has found that micr

SSS 2008-02-26

This is Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. Being a big fish in a small pond is more likely to get you noticed. Thats good news if you are, say, the best pitcher in your little league division, but

SSS 2011-03-22

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. X rays are so common today you probably never stop to think about them. They help check a broken wrist, a sprained ankle, the state of our teeth. But a l

SSS 2011-09-22

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Scientists can now include online gaming in their problem-solving arsenal. Because game players seem to have provided an answer to a scientific questio

SSS 2012-02-29

This is Scientific American 60 Second Science, I am Mariette DiChristina. Got a minute? Maybe you've heard that sound. It's an Orca, a killer whale. We know that whales have a kind of language. Families and closely related groups even share dialects.

SSS 2012-03-28

This is Scientific Americans 60 Second Science, I am Cynthia Graber, this will just take a minute. Compounds found in the herb thyme have antibiotic properties. Now scientists have demonstrated that thyme might have a future role in fighting acne. A

SSS 2010-01-21

At one time or another, youve probably said, Its a small world. Well, it used to be much, much smaller. Because according to scientists from the University of Utah, about a million years ago our ancestors numbered fewer than 20,000. The estimate appe

SSS 2009-01-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Weve all gotten e-mails warning us about nasty computer viruses. Maybe you even have antivirus software installed on your machine. Well, now scientists s

SSS 2009-09-24

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

美国英语听力80篇2 Lesson34

[00:05.62]34) Ancient Quasar [00:11.96]Astronomers have discovered what they say is one of the earliest known structures ever to form in the universe. [00:20.82]It is a star-like object called a quasar. [00:24.76]Quasars are very large. [00:27.69]The

新标准初中英语八年级(下):UNIT1 The world

[00:01.47]Module 2 THE FUTURE [00:04.41]UNIT 1 I think the world will become hotter. [00:09.64]1 Listen and read. Then say. [00:14.10]How was your weekend, everyone? [00:16.91]It was great fun. [00:19.02]But there were so many cars! [00:21.66]The tra

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19. This is the credibility process, through which the individual researcher's me, here, now becomes the community's anyone, anywhere, anytime. 【分析】复合句。句子主干为 This is...process...。which 引导非限定性定语从句，修饰

托福听力短文 II-01-1

(WA-MM) Not long ago, some of you may have read about a team of mountain-climbing scientists who helped to recalculate the elevation of the highest mountain in the world: Mt. Everest. Of course, the elevation of Mt. Everest was determined many years

托福听力短文 I-08-1

(woman) Word comes from California of a new weapon in the war on household pests. Two scientists working for a firm in Anaheim, California, have developed a method to eliminate insects without using dangerous chemicals. The new poison? Hot air. The

CNN 2008-03-27

Good afternoon. Im Naamua Delaney at the CNN Center in Atlanta. Heres a look at whats happening NOW IN THE NEWS. Clashes in and around Baghdad and Basra of the last two days have left at least 58 people dead, according to Iraqi officials. The areas

国家地理:Tornadoes 龙卷风

Call them twisters or tornadoes. They're nature's most violent storms with swirling winds that can top 300 miles per hour. About 800 twisters sweep through the US every year, more than anywhere else in the world. The hardest-hit area is a swath of th

英文笑话：He Knows the Answer 他知道答案

Teacher: Can you tell me anything about the great scientists of the 18th century? Pupil: Yes, sir, I can. They are all dead. 教师：你能告诉我一些有关十八世纪的伟大科学家的事情吗？ 学生：我能，先生。他们都死了。

看看最奇怪的新物种有哪些?(有声)

What do a carnivorous sponge, a lobular yam and a flat-faced psychedelic frogfish all have in common? Theyre among the Top 10 Species first described in 2009. Thats according the International Institute for Species Exploration at Arizona State Univer

VOA慢速英语20060724a

DEVELOPMENT REPORT - Fighting Malaria in Africa From Your Home ComputerBy Jill Moss Broadcast: Monday, July 24, 2006 This is the VOA Special English Development Report. Personal computers can spend a

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97 对人类基因数量的质疑 SCIENCE REPORT September 20, 2001: Number of Human Genes QuestionedBy George Grow （Start at 1'01