种数－面积曲线, 种数面积曲线, 种数—面积曲线, 种-面积曲线

SSS 2008-12-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Women are so much better than men at so many things. But according to a report published by the Royal Society, chess is not one of them. The topic of sex

发表于:2018-12-02 / 阅读(98) / 评论(0)

Scientific American(十二)月

VOA慢速英语20060813a

WORDS AND THEIR STORIES - Baseball Terms: This Is a Whole New BallgameBy Shelley Gollust Broadcast: Sunday, August 13, 2006 Now, the VOA Special English program, Words and Their Stories. Baseball is A

发表于:2018-12-07 / 阅读(56) / 评论(0)

2006年慢速英语（八）月

VOA慢速英语2013 The Big Easy and Sin City

The Big Easy and Sin City Now, the VOA Special English program Words and Their Stories. Many cities have interesting nicknames. Nicknames can help establish the identity of a city. They can also spread pride among its citizens. New Orleans, Louisiana

发表于:2018-12-16 / 阅读(80) / 评论(0)

2013年VOA慢速英语(九)月

VOA标准英语2013--Estranged Family Gets Sports Fix in 'Trouble With The Curve'

Estranged Family Gets Sports Fix in 'Trouble With The Curve' In Trouble With The Curve, Gus Lobel knows more about scouting new talent for baseball teams than anyone else in the business; but his failing eyesight and old-fashioned attitudes may end h

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VOA标准英语2013年(一月)

NPR 06-29:The Learning Curve of Gratitude学会珍惜每一天

After suffering a life-threatening illness, singer-songwriter Mary Chapin Carpenter had time to reassess her priorities. She came to believe in more fully appreciating the blessings each day brings From NPR News, this is weekend edition. I am Liane

发表于:2018-12-19 / 阅读(120) / 评论(0)

2007年NPR美国国家公共电台

体育美语-020 Throw a curve ball

P: Hey Yang Chen why are you playing Hail to the chief? I thought we were a sports show - are we going political? Y: Not really. You see, Patrick, the presidential election is in its final stretch - the home stretch - the final lap - just like in长跑

发表于:2018-12-25 / 阅读(156) / 评论(0)

体育美语

企业家成功的5大要素乔布斯全都有

No one could have taught you more about starting a company than Steve Jobs, and I had the privilege and honor of working for him in the Macintosh division of Apple. 没有人能够比斯蒂夫乔布斯给你更多关于创建公司的指导了，而笔

发表于:2019-01-03 / 阅读(75) / 评论(0)

阅读空间

Lesson 91 - PASS THROW A CURVE / THROW FOR A LOOP

to throw a curve to throw for a loop 美国人在打棒球时经常喜欢发曲线球，使球的方向会发生突变，这样给对方造成错觉，不能回击那个球。这和其他球类运动，

发表于:2019-01-07 / 阅读(217) / 评论(0)

美国习惯用语

简单慢速英语阅读:A Bus Accident

There was a bus accident. The bus accident was near a dam. The bus ran off the road. The bus tipped over. Two people died. Eight people were hurt. The bus driver was going too fast. The road is a two-lane road. It is a narrow road. It isnt a wide roa

发表于:2019-01-07 / 阅读(190) / 评论(0)

简单慢速英语阅读

与美国小学生一起学英文第5册第3期:脊柱

Backbone 脊柱 The backbone is one of the bones in the human body. 脊柱是人身体里的骨头之一。 It supports people's backs. 它支撑着人的背部。 Without a backbone, people cannot stand up, sit down or walk. 要是没有脊柱，人就

发表于:2019-01-10 / 阅读(73) / 评论(0)

与美国小学生一起学英文第5册

VOA慢速英语2014 棒球术语

Baseball Terms 棒球术语 Now, the VOA Special English program WORDS AND THEIR STORIES. Baseball is Americas national sport. So it is not unusual that many popular expressions come from baseball. But first, let me explain a little about the game. E

发表于:2019-01-12 / 阅读(100) / 评论(0)

2014年VOA慢速英语(十)月

英文歌曲：Britt Nicole - Who You Say You Are

Yeah, yeah. You know my name. I know You wrote my story-y-y. But there are days, I can't see a happy ending. No, no. Life get's hard. Sometimes it just hurts. It's kicking me down and throwing me curves. When I feel the rain. I won't be afraid. 'Caus

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节奏布鲁斯

英文蓝调歌曲：Britt Nicole - Who You Say You Are

You know my name. I know You wrote my story-y-y. But there are days, I can't see a happy ending. No, no. Life get's hard. Sometimes it just hurts. It's kicking me down and throwing me curves. When I feel the rain. I won't be afraid. 'Cause I know, I

发表于:2019-01-16 / 阅读(74) / 评论(0)

节奏布鲁斯

英语听力：探索发现 2012-06-03 恐龙是怎样的炼成的—7

Darren, I do love these museum collections when you come behind the scenes and you suddenly feel that you are surrounded by treasures. And it's amazing to think that there are new discoveries to be made in here as well. That's right in a way. There a

发表于:2019-01-23 / 阅读(63) / 评论(0)

探索与发现2012年

源自棒球的英语词组

棒球有美国国球之称，因此很多习语都和棒球有关就不足为奇了。看看下面这些棒球术语，你知道它们是什么意思吗？ on the ball：机灵，有见识这个词组源于20世纪早期的美国棒球运动。如果

发表于:2019-02-03 / 阅读(87) / 评论(0)

实用英语

美国习惯用语:470 beanball; curve ball...

今天又要学两个在总统大选年里新闻界时常会用到的习惯用语，而且这两个习惯用语还是从美国人最心爱的消遣活动: 棒球赛中借用来的。这两个习惯用语都和用牛皮制成的结结实实的棒球有

发表于:2019-02-05 / 阅读(389) / 评论(0)

美国习惯用语

英文歌曲:Drive My Soul

Drive My Soul Lights Seems somebody put out the moon Now the road is a minefield I cant follow the way she moves I cant see past the shadows You make the darkness disappear I feel found when you stay near I know where I am when you are here My way be

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好听的英文歌曲

专家:恐怖袭击有章可循

Random acts of violence are, well, random. It's the unpredictable nature of terrorism, after all, that makes it so terrifying. But according to The Mathematics of Terror, an article by Andrew Curry in the latest issue of Discover magazine, acts of te

发表于:2019-02-11 / 阅读(63) / 评论(0)

阅读空间

经济学人:六大经济学原理:通胀与失业的关系(1)

The relationship between inflation and unemployment was first studied by Irving Fisher in 1926. 1926年，通胀与失业之间的关系在欧文费雪(Irving Fisher)那里得到了第一次研究。 But the Phillips curve, as it came to be known, ow

发表于:2019-02-17 / 阅读(76) / 评论(0)

经济学人财经系列

音乐咖啡厅:Remember when

Remember when-- Alan Jackson Remember when I was young and so were you And time stood still and love was all we knew You were the first, so was I We made love and then you cried Remember when 曾几何时我年轻过你亦如此时光静止你我除爱别无所知我之初

发表于:2019-02-17 / 阅读(168) / 评论(0)

音乐咖啡厅

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