新东方优美背诵短文50篇 Unit48:Bacteria

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

美联社新闻一分钟 AP 2015-12-27

Washington governor Jay Inslee says he's ordered immediate steps to correct a computer glitch that allowed several thousand prisoners to be released early. Computers were miscalculating sentences for some inmates, letting about 3 percent of the priso

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Script: (Thanks to all participants) Sometimes a peripheral character just grab center stage. Like Mercutio in Romeo and Juliet. This is a dish where that exact thing will happen. Glazed carrots. To make this dish, we are gonna take sliced carrots a

美联社新闻一分钟 AP 2012-11-26

1. At least two people are dead and dozens more injured in a pileup involving at least one hundred vehicles that forced the closing of interstate 10 in southeast Texas. The Texas Department of Public Safety says the cars and trucks crashed in very de

美联社新闻一分钟 AP 2014-11-20

1. A surgeon who contracted Ebola died on Monday. He has been cared for at the University of Nebraska Medical Center. Doctors say the 44-year-old was in extremely critical condition when he arrived at the Hospital over the weekend. He contracted the

美国科学60秒 SSS 2015-01-22

This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

科学美国人60秒 SSS Knot Not Easy to Knot

Of the many puzzles mathematicians ponder, one is new ways to tie knots. There are more than six billion different types of knots that have been tabulated by mathematicians. Six billion. David Leigh, a chemist at the University of Manchester in the U

科学美国人60秒 SSS 看结容易 打结难

Knot Not Easy to Knot 看结容易 打结难 Of the many puzzles mathematicians ponder, one is new ways to tie knots. There are more than six billion different types of knots that have been tabulated by mathematicians. Six billion. David Leigh, a che

英文书摘精选 How Does Ice Cool Drinks?冰块是如何使饮料冷却的?

Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? 有件事情我们总觉得理所当然：室温下把一些冰块放入水中，

英文书摘精选 Is There Life On Other Planets?外星球上有生命吗?

Weve all been hearing about ongoing Mars exploration, and how water probably used to be abundant there. And a water spewing volcano was recently discovered on a small moon orbiting Saturn. Water is one sign that life may exist or have existed at some

学个词 Learn a Word-VOA英语教学 3115 tit for tat

今天我们要学的词是tit-for-tat. Tit-for-tat意思是针锋相对，以牙还牙。Islamist militants' attacks and tit-for-tat violence between rival ethnic groups have cast doubt on Mali's upcoming elections. 伊斯兰国激进分子的袭击和

60秒科学:蚊子是西尼尔病毒的传播者

Mosquitoes, Not Birds, Made West Nile National In 1999 West Nile virus infected its first American, in New York. By 2004, the disease had spread across the country. Researchers speculated that, for the disease to spread so far so quickly, birds must

60秒科学:青春期, 孩子会变笨？

在《科学》杂志上的一篇研究中，研究者们描述了青春期时人体内细胞和分子的改变，正是这种改变促使这段时期的人们智力水平低下。 Ah, puberty. A time for raging hormones, growing independence and bei

VOA标准英语2012--Nano Tool Watches Teardrop Protein Destroy Bacteria

Nano Tool Watches Teardrop Protein Destroy Bacteria About a hundred years ago, a Scottish biologist discovered that proteins called lysozymes in human tears can kill bacteria. Scientists have studied the enzyme extensively, but molecular biologist Gr

VOA标准英语2015--Classes Resume in War-Torn Kobani

Classes Resume in War-Torn Kobani KOBANI, SYRIA With Syria in its fifth year of conflict, most of the norms of prewar life are gone. Many schools, clinics and other social services have long been shuttered or bombed. But in the aftermath of fighting

科学美国人60秒 SSS 敏感如蛇的热传感器

Heat Sensor Has Snaky Sensitivity敏感如蛇的热传感器 One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. 世界上有一种最精敏的热传感器，它

学个词Learn a Word 第1232期 underground

今天我们要学的词是underground。 Underground, 地下。为防止辐射物质通过土壤和地下水系统的扩散， The Japanese government is considering building an underground barrier near the Fukushima nuclear power plant, 日本政府正

澳洲新闻 (ABC新闻快递) 2015-01-19

Refugee advocates claim asylum seekers in Manus island have been denied drinking water and warned the move could have fatal consequences.Asylum seekers have been protesting several days over plans to have them resettled in PNG.Protesters on hunger st

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Microwaves heat water by jerking the water molecules around, so to speak. Each water molecule has a slight positive electric charge on one side and a slight negative charge on the other. As microwaves pass by, they exert forces on those charges, firs

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Honey has been around for a very long time. Cave paintings in Spain from over ten thousand years ago show people harvesting honey. Today honey is mostly used for its distinctive flavor, but for baking it has another advantage as well: baked goods mad