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Transcript: Host: On Star Students today were speaking to Peter who is going to tell us about the Pomodoro Technique, a system to help manage your time. It was invented by an Italian man called Francesco Cirillo in the 1980s. He called it the Pomodor
一起闲话英语-English Chitchat
When I was young, we never used the word recycling. It wasnt important. People would think you were crazy for recycling things. Today, things are different. We now know we have a problem. We use too much stuff and throw everything away. Lots of the s
听一分钟英文-R
物理学和市场营销似乎没有什么相似之处，但是丹.科布利却对两者充满热情。他利用牛顿第二定律、海森堡的不确定原理、科学的方法以及热力学的第二定律将这些毫不相干的两者放到一起来
TED公开课:莫名关系
分集介绍：这是一阶方程组的第一讲，首先引入了形如x'=f(x,y,t);y'=g(x,y,t)的一阶方程组。教授讲了一些实际用到一阶方程组的例子，然后利用煮鸡蛋的例子，演示了如何用比较直观的消元法来求
麻省理工学院公开课：微分方程
Using the five sources of your power at work Every employee has five sources of power to draw from. Assess your potential power sources and use them to your advantage. 1.Personal power is all about your charisma, your passion to achieve the strength
英语阅读理解
New Beer Made From Old Bone 利用鲸鱼化石骨骼酿造啤酒 The United States is currently experiencing a beer making movement. Many beer drinkers these days are no longer happy with mainstream beer sold in every store, on every street. They wan
2014年VOA慢速英语(九)月
Scientists Developing Technology to Recreate Crime Scenes 科学家利用科技还原犯罪现场 Police and prosecutors sometimes recreate crime scenes in an effort to better understand complex cases. They may set up a room to make it look like the
2015年VOA慢速英语(六)月
Scientists Use Sound Waves to Find Hidden Cracks in Bridges, Airplanes 科学家利用声波在桥梁和飞机寻找隐蔽的裂缝 On August 1, 2007, a steel bridge in Minneapolis, Minnesota, collapsed, sending people and vehicles into the Mississip
2015年VOA慢速英语(四)月
South Korea Attempting to Reuse More E-Waste 韩国尝试重新利用更多的电子垃圾 South Korea is dealing with increasing amounts of waste from electronic devices. These useless or unwanted parts are often called e-waste. Tons of old computer
2014年VOA慢速英语(十一)月
利用声音图像发现设施上裂纹 Finding hidden cracks in large structures, such as bridges and airplanes, can be the difference between life and death, if the flaw leads to a catastrophic collapse. Scientists at Bristol University in Britain
VOA标准英语2015年(八月)
写作题目 We have been living in the nuclear age for over half a century. Since the ?rst atomic bombs were developed, nuclear technology has provided governments with the ability to totally destroy the planet. Yet technology has been put into posi
英语作文
科学家利用猪膀胱令损伤肌肉组织重生 The promise that stem cells may someday help regenerate damaged tissue seems to be close to fulfillment. Scientists at the University of Pittsburgh School of Medicine report that some of their sever
VOA双语新闻 2014年8月
GWEN IFILL: This week marks a year since superstorm Sandy struck. More than 70 people were killed along the Eastern Seaboard. Damage totaled more than $65 billion, and it pounded New Jersey and New York City hard. It also prompted a reexamination --
PBS访谈环境系列
RAY SUAREZ:Next: to our series about the digital world's cultural impact. NewsHour political editor Christina Bellantoni is here with the Daily Download team. CHRISTINA BELLANTONI:Ordinary citizens have more opportunities to talk directly to the pres
PBS访谈娱乐系列
英语复习中大家很容易忽略的一个捷径3就是通过历年真题背单词提高阅读质量。如果你在做历年真题的过程中把遇到的大纲上有的单词就在大纲上划下来
考研英语
PV solar technology is more complex. When sunlight hits a PV cell, electrons in the cell are knocked out of their orbits. Electric fields channel the electrons in a current used to generate electricity。 Unlike thermal solar panels, PV technology is
英语时差8，16
So you want to attract mates. After all, passing on your genes is what evolution is all about. To do that you need offspring, and to get a lot of those you need to be attractive. The flashier the better. Hey, look over here! Sexy me. Ah, but theres t
英语时差8，16
Did you know that enough sunlight falls on the earths surface every minute to provide energy for the entire world? The trick, though, is turning sunlight into power we can use for things like heating water and making electricity. And there are two ty
英语时差8，16