闭合曲线序列

SSS 2008-12-31

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its the time of year to take a look backand thats just what the journal Science did as they listed their most important breakthroughs of 2008. At the v

发表于:2018-12-02 / 阅读(131) / 评论(0)

Scientific American(十二)月

数学英语 25 What is the Fibonacci Sequence

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(136) / 评论(0)

数学英语

UNIT 7 Enjoy Your Hobby Lesson 56:Unit Review

[ti:UNIT 7 Enjoy Your Hobby Lesson 56:Unit Review] [0:01.051]Unit 7 [0:02.631]Enjoy Your Hobby [0:04.894]Lesson 56: [0:06.943]Unit Review [0:08.907]I. [0:10.231]Building Your Vocabulary [0:12.963]A. [0:14.500]Fill in each blank with the proper word o

发表于:2018-12-10 / 阅读(143) / 评论(0)

河北教育初中英语（初中起点）八年级上

专业术语—基因专业词汇R/S

发表于:2018-12-12 / 阅读(76) / 评论(0)

医务英语

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

发表于:2018-12-16 / 阅读(148) / 评论(0)

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(137) / 评论(0)

2007年NPR美国国家公共电台

SSS 2011-10-21

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome,

发表于:2018-12-24 / 阅读(181) / 评论(0)

Scientific American(十)月

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(171) / 评论(0)

体育美语

2014年ESL之商务英语 18 Describing Order and Sequence

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(127) / 评论(0)

2014年ESL之商务英语

数学英语 26 What is the Golden Ratio

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(216) / 评论(0)

数学英语

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(234) / 评论(0)

美国习惯用语

SSS 2008-08-07

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(142) / 评论(0)

Scientific American(八)月

SSS 2008-05-13

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Robin Williams thought that the platypus was cobbled together by an inebriated deity: Lets take a beaver. Lets put on a ducks bill. Now we know how weird the platypus is

发表于:2019-01-08 / 阅读(140) / 评论(0)

Scientific American(五)月

雅思小作文图形种类及描述方法

由于传统的英语教学里面不涉及小作文的内容，所以雅思写作的小作文部分一直是很多同学的软肋。不会说名称，不知如何分析对比，即使有思路却不知如何表达，成为很多同学的问题。下面

发表于:2019-01-18 / 阅读(135) / 评论(0)

雅思英语

神秘的古埃及金字塔

古埃及金字塔是奴隶制帝王的陵墓，最宏大的当为吉萨三座大金字塔。塔基呈方形，每边长230米，高146米，用230余万块巨石(每块平均重达2.5吨)垒成，国王墓室用一块400吨重的石板垒成。整体规

发表于:2019-02-01 / 阅读(103) / 评论(0)

阅读空间

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(411) / 评论(0)

美国习惯用语

Human fertilization process discovered

BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear

发表于:2019-02-08 / 阅读(143) / 评论(0)

英语新闻

Lesson 9-2:Dates 日期

Listen to the schedule of a business trip. Fill in numbers l-8 to point out the sequence of the schedule. I'm leaving for Milan on the 7th of June. l'II arrive there on the 8th evening at about 7:OOpm. Then, l'II take a shuttle bus to the hotel. On t

发表于:2019-02-17 / 阅读(113) / 评论(0)

英语听力练习题

Lesson 55-1 In the Library 在图书馆

Listen to the dialogues and write the correct sequence of l-6 as mentioned in the dialogues. A:How do I search books from the computer? B:First, key in your PIN number. Then, it goes to the Library's Homepage. Then, you can choose any way you want to

发表于:2019-02-17 / 阅读(86) / 评论(0)

英语听力练习题

《柯南脱口秀》第60期:美国梦

Thank you for being here,Fareed.Nice to have you on the show. 多谢你抽空前来法里德很高兴你能来上节目 Let's get started first with your background.I do think I know a lot about you. 首先聊聊你的背景我觉得我很了解你

发表于:2019-02-23 / 阅读(118) / 评论(0)

柯南脱口秀

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bona fide occupational qualification (bfoq)