Think back to your college days, the good old days when life was easy. Stay up all night partying or even studying? No problem. Eat pizza every night and plow through entire bags of potato chips at one sitting. Hey, no sweat. You were a lean, mean, a

发表于:2018-12-28 / 阅读(56) / 评论(0) 分类 初学者听力文摘精选

When the Pachyrhinosaurus bodies came to the bend in the river the momentum of the water push their carcasses to the outer edge of the bend. 当肿鼻角龙的尸体来到河流的转弯处,水流的动力将它们的尸体冲向河流转弯处外缘

发表于:2018-12-28 / 阅读(52) / 评论(0) 分类 侏罗纪搏击俱乐部

Why Is Gravity Good For Us? When astronauts return from long missions in space, their exit from the spacecraft is usually hidden from public view. This is because after several months in weightless conditions, things we usually take for granted, such

发表于:2018-12-31 / 阅读(75) / 评论(0) 分类 英语听力文摘 English Digest

Stay Thin By Sleeping More A study published Monday found that people who sleep less tend to be fat, and experts said it's time find if more sleep will fight obesity. We've put so much emphasis on diet and exercise that we've failed to recognize the

发表于:2019-01-02 / 阅读(50) / 评论(0) 分类 早读英语精华本

分集介绍:导数,斜率,速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(323) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

One hundred years ago today, September (the) 27th, 1905, a physics paper was dropped into the mail, addressed to a German journal called AT. The paper was penned by a 26-year-old Swiss patent clerk with dark curly hair years before he sprouted that s

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 2005年NPR美国国家公共电台

1. Again today the National Weather Service has posted heat warnings from Massachusetts to South Carolina. Electricity demands set records in some areas and scattered power outages have been reported.

发表于:2019-01-08 / 阅读(117) / 评论(0) 分类 美联社新闻一分钟2006

This is AP News Minute Kentucky authorities say twoteen sweethearts suspected in a crime spree of stolen vehicles and pilferedchecks have finally been apprehended in Florida. The modern-day Bonnie andClyde duo began their run from the law and their f

发表于:2019-01-11 / 阅读(154) / 评论(0) 分类 美联社新闻一分钟2015(一)月

This is AP News Minute. 1. Pope Francis concluded his trip to the US by celebrating mass in front of hundreds of thousands of people in Philadelphia Sunday. The mass was the last stands biggest event on the popes itinerary as he kept ten-day tour of

发表于:2019-01-11 / 阅读(112) / 评论(0) 分类 美联社新闻一分钟2015(十)月

Maryland Community Becomes Patron of the Arts Vicco von Voss has been making wooden furniture from salvaged materials for 20 years. When I get a tree that has been blown over by a hurricane or strictly taken down by a tree company, I have the opportu

发表于:2019-01-14 / 阅读(65) / 评论(0) 分类 VOA标准英语2013年(七月)

Still, I'm optimistic. Yes, inequity has been with us forever, but the new tools we have to cut through complexity have not been with us forever. They are new-they can help us make the most of our caring-and that's why the future can be different fro

发表于:2019-01-18 / 阅读(75) / 评论(0) 分类 偶像励志英语演讲

This is Scientific American's 60-second science. I'm Carrie Haphgn. Just take a minute. It's tough to have a job with the bosses always riding you. That's literally the case with horse. Now a study finds that the stress experience by the acquire s co

发表于:2019-01-20 / 阅读(72) / 评论(0) 分类 Scientific American(五)月

The mystery of what could count for the quasars' extraordinary brightness was the hot topic in astronomy during the 1960s. As astronomers began to grapple with the new enigmatic objects that had been found by the radio telescopes, one astronomer, kee

发表于:2019-01-23 / 阅读(59) / 评论(0) 分类 探索与发现2013年

When assembled, Michell's apparatus looked like nothing so much as an eighteenth-century version of a Nautilus weight-training machine. It incorporated weights, counterweights, pendulums, shafts, and torsion wires. 装配完毕以后,米歇尔的仪器

发表于:2019-01-29 / 阅读(51) / 评论(0) 分类 万物简史

I always liked you, Mike. 迈克,我一直很欣赏你 That's why I'm gonna talk and you're gonna listen. 所以你听我说 Eli Russell. 伊莱罗素 Short answer? He was here. 简短的回答,他来过这儿 What's the long answer? 那长篇大论

发表于:2019-01-29 / 阅读(98) / 评论(0) 分类 陨落星辰第一季

Subways Loudest Transit Option in NYC In a report in the American Journal of Public Health performed in New York City, subways were the loudest mass transit option, with potentially hearing-damaging noise levels. Steve Mirsky reports. [The following

发表于:2019-01-30 / 阅读(138) / 评论(0) 分类 60秒科学

IN THE NEWS - Chief Weapons Inspector Report on Iraq Weapons By Cynthia Kirk Broadcast: Saturday, January 31, 2004 David Kay This is Steve Ember with In the News in VOA Special English. Former chief U

发表于:2019-01-30 / 阅读(56) / 评论(0) 分类 教育与新闻

今天我们要学的词是layoff。 Layoff, 裁员。美国劳工部公布的数字显示,The number of mass layoffs by U.S. employers rose last month to tie a record set in March, 美国雇主大规模裁员,上个月被裁减人数增加到跟三

发表于:2019-02-02 / 阅读(69) / 评论(0) 分类 英语单词荟萃

Drumbeats called the faithful to what is left of Port-au-Prince's main cathedral for a somber Mass Sunday, the first since the devastating earthquake. The Cathedral, once a symbol of hope for Haiti now lies in ruins and parishioners are vowing to reb

发表于:2019-02-05 / 阅读(63) / 评论(0) 分类 VOA标准英语2010年(一月)

isolated adj. 孤立的 jurisprudence n. 法学 lander n. 登陆者 latitude n. 纬度 launch n.v.发射(导弹、火箭等) layperson n. 外行 lichen n. [植]青苔,地衣 locale n. 场所 LR=

发表于:2019-02-06 / 阅读(117) / 评论(0) 分类 英文语法词汇