[自] 对象数学模型

UNIT 2 Plant a Plant! Lesson 10: Plant Parts

[ti:UNIT 2 Plant a Plant! Lesson 10: Plant Parts] [0:00.363]UNIT 2 第二单元 [0:02.105]Plant a Plant! 培育植物 [0:03.775]Lesson 10: 第10课： [0:05.444]Plant Parts 植物的组成部分 [0:07.100]THINK ABOUT IT! 想一想 [0:08.539]How many

发表于:2018-12-13 / 阅读(189) / 评论(0)

河北教育初中英语（初中起点）八年级下册

UNIT 2 Plant a Plant! Lesson 9: How Does a Plant Grow?

[ti:UNIT 2 Plant a Plant! Lesson 9: How Does a Plant Grow?] [0:00.532]UNIT 2 第二单元 [0:01.935]Lessons 9～16 第9~16课 [0:04.780]Plant a Plant! 培育植物！ [0:06.829]You Will Learn 你将学到 [0:09.105]Functions 实际应用 [0:10.888]Ta

发表于:2018-12-13 / 阅读(219) / 评论(0)

河北教育初中英语（初中起点）八年级下册

VOA标准英语2014--科学家寻求超级大豆以帮助全球粮食短缺

Scientists Seek Super Soybean to Help Global Food Shortage 科学家寻求超级大豆以帮助全球粮食短缺 LOS ANGELES According to the United Nations, the worlds population will increase by 34 percent by the middle of the century. Global food

发表于:2018-12-16 / 阅读(98) / 评论(0)

VOA标准英语2014年(五月)

走进剑桥大学第7期:没有铆钉的数学轿

The Mathematical Bridge 没有铆钉的数学轿 The Mathematical Bridge was built in 1749 by James Essex the Younger to the design of William Etheridge. It had subsequently been rebuilt to the same design in 1866 and 1905. 数学桥是1749年詹姆斯

发表于:2018-12-18 / 阅读(105) / 评论(0)

走进剑桥大学

世界节假日博览第47期:圆周率日

Pi Day is on March 14. This is the day when mathematicians and geometry enthusiasts around the world get together and celebrate the mathematical constant of Pi. There are two good reasons to hold Pi Day on March 14. The first is that in the American

发表于:2018-12-29 / 阅读(84) / 评论(0)

世界节假日博览

VOA标准英语2015--Mind-Controlled Prosthetics Are Getting Closer

Mind-Controlled Prosthetics Are Getting Closer Scientists and engineers are making substantial advances towards the ultimate goal in prosthetics creation of limbs that can be controlled by the wearers mind. Thanks to sophisticated sensors capable of

发表于:2019-01-03 / 阅读(135) / 评论(0)

VOA标准英语2015年(五月)

SCIENCE IN THE NEWS - First electronically controlled animal

SCIENCE IN THE NEWS -May 21, 2002: First electronically controlled animals / Study of mothers and their sons / Effects of global warming Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this i

发表于:2019-01-07 / 阅读(126) / 评论(0)

科技之光

2007年VOA标准英语-Irbil Water Treatment Plant a Model for the Reg

By Brian Padden Irbil, Iraq 27 September 2007 Recent outbreaks of cholera in parts of Iraq highlight the need for basic services like clean water.Development projects in much of the country have been delayed because of the deteriorating security situ

发表于:2019-01-07 / 阅读(149) / 评论(0)

2007年VOA标准英语（九月）

北师大版高中英语模块10--Unit29(2)-5

[00:00.00]5 We all have genius within us [00:04.35]For years,scientists have speculated [00:06.66]that the talents possessed by [00:08.13]so-calledidiots savants- [00:10.46]as depicted by Dustin Hoffman in the film [00:12.97]Rain Man-may be accessibl

发表于:2019-01-10 / 阅读(278) / 评论(0)

北师大版高中英语模块10(选修)

VOA慢速英语 2008 1001b

This is the VOA Special English Health Report. Governments, businesses and other groups have promised to add three billion dollars to the fight against malaria. The promises came last week at a meeting at the United Nations in New York. The money wi

发表于:2019-01-11 / 阅读(146) / 评论(0)

VOA慢速英语2008（十）月

VOA慢速英语--科学家制作逼真的恐龙模型

AS IT IS 2016-10-09 Scientists Create Realistic Model of Dinosaur 科学家制作逼真的恐龙模型 British scientists have created what they believe is the best three-dimensional model of a dinosaur ever built. They say the model is almost the ex

发表于:2019-01-12 / 阅读(207) / 评论(0)

2016年VOA慢速英语(十)月

托福听力单句训练附答案:第94期

听力题目： 7. (A). Alex did fine in calculus. (B). Calculus was hard for Alex. (C). Alex had trouble getting to math class. (D). It used to be difficult for Alex to find us. 8. (A). Why is California so popular? (B). California is my favorite st

发表于:2019-01-18 / 阅读(166) / 评论(0)

托福听力单句训练

2016年CRI Wuhan Marine Machinery Plant: Role model of smart ship equipment maker in China

The Wuhan Marine Machinery Plant, located in Hubei's provincial capital, is already China's largest ship equipment producer for both military and civil use. Photo taken on Nov. 10 shows at the Wuhan Marine Machinery Plant. [Photo: CRIENGLISH.cn/Xu Ya

发表于:2019-01-19 / 阅读(147) / 评论(0)

2016CRI中国国际广播电台

英语口语之精华语句

1. What college are you attending? 2. What are you majoring in? /What's your major? 3. What grade /class〖年级和班级〗are you in? 4. What school did you go to? /Where do you go to school? 5. How many courses are you taking this semester? 6. I'

发表于:2019-01-21 / 阅读(317) / 评论(0)

天天商务口语

英语六级听力考试预测模拟练习6

[00:00.00]Listening Comprehension (20 minutes) [00:-1.00]Section A [00:-2.00]Directions:In this section,you will hear 10 short conversations.At the end of each conversation,a question will be asked about what was said.Both the conversation and the qu

发表于:2019-01-25 / 阅读(177) / 评论(0)

英语六级听力练习集锦

VOA慢速英语20060323a

EDUCATION REPORT - Intel Science Talent Search Winners AnnouncedBy Nancy Steinbach Broadcast: Thursday, March 23, 2006 I'm Steve Ember with the VOA Special English Education Report. An eighteen-year-o

发表于:2019-01-30 / 阅读(134) / 评论(0)

2006年慢速英语（三）月

英语杂谈：58 The mathematical marriage predictor

You might not think that mathematicians have anything particularly relevant to say about your love life. But you'd be wrong--if we're talking about James Murray, a mathematician at the University of Washington in Seattle who teamed up with Psychologi

发表于:2019-01-31 / 阅读(144) / 评论(0)

英语杂谈

“结石”怎么说

结石怎么说如果说，calculus（微积分）还有一层含义，即表示日常最令人痛之欲绝的结石，您会不会很很惊异？calculus（微积分）和calculus（结石）之间从词源上讲有无联系呢？今天的词海拾贝

发表于:2019-02-07 / 阅读(126) / 评论(0)

英语口语

PBS高端访谈:缅怀另类的天才:约翰·纳什

HARI SREENIVASAN: Returning now to the death of Nobel Prize-winning mathematician John Nash. I'm joined by Nash's colleague and friend Robbert Dijkgraaf, director of the Institute for Advanced Study in Princeton, New Jersey. So, first off, my condole

发表于:2019-02-17 / 阅读(123) / 评论(0)

PBS访谈社会系列

双语有声阅读：植物拟态

Mimicry in Plants Plant adaptations can be remarkably complex. Certain species of orchids, for instance, imitate female bees, other plants look and smell like dead animals, and still others have the appearance of stones. These strange adaptations to

发表于:2019-02-17 / 阅读(79) / 评论(0)

双语有声阅读

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boletus queletii