[土壤] 土壤侵蚀数学模型

VOA慢速英语 2008 1209a

This is the VOA Special English Agriculture Report. A new study says almost forty percent of China is losing soil because of wind and water erosion. The Chinese government recently announced the results of a three-year study. The study was the large

发表于:2018-12-01 / 阅读(177) / 评论(0)

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北师大版高中英语模块4--Unit 10 Money Lesson 3-2

[00:01.44]In fact, it is you who have the most important [00:04.66]role to play in stopping Yellow River erosion. [00:08.19]Did you know the importance of your 5 yuan? [00:11.40]For a start, it can buy you a tree, [00:13.86]which will help make soil

发表于:2018-12-04 / 阅读(211) / 评论(0)

北师大版高中英语模块4

北师大版高中英语模块4--Unit 10 Money Lesson 3-1

[00:03.33]Unit 10 Money Lesson 3 Your money [00:09.65]When less is more [00:12.04]What can you do with 5 yuan? [00:14.39]Not a lot, you may think. [00:16.20]Well, if buying a bag of candies [00:18.28]or cookies doesn't appeal to you, [00:20.52]how ab

发表于:2018-12-04 / 阅读(211) / 评论(0)

北师大版高中英语模块4

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

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漫画搞定六级词汇(音频+文本) 第33期

图片1 rot v. （使）腐烂，（使）腐败n. 腐烂，腐败例句：Some of rubbish rots away over a long time. 有些垃圾时间久了就烂掉了。 rotten adj. 腐烂的，恶臭的，堕落的，风化的，虚弱的例句：This place

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学个词 Learn a Word-VOA英语教学 3155 erosion

今天我们要学的词是 erosion。 Erosion 的意思是侵蚀、腐蚀。A new high-speed rail station linking Hong Kong and mainland China opened under Beijing authority, raising new worries among Hong Kong residents of a further erosion of the

发表于:2018-12-30 / 阅读(154) / 评论(0)

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Mars Rover to Begin Taking Soil Samples This Week

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

发表于:2019-01-04 / 阅读(155) / 评论(0)

VOA2004（上）--各类新闻

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(289) / 评论(0)

北师大版高中英语模块10(选修)

VOA慢速英语 2007 0306a

This is the VOA Special English Agriculture Report. To call something marginal means it is not very good. Farmers have their own way to define marginal land: It is the last to be planted under good conditions, and the first to be avoided under poor c

发表于:2019-01-11 / 阅读(153) / 评论(0)

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VOA慢速英语 2007 1106a

AGRICULTURE REPORT - Farming Marginal Lands By Mario Ritter / Broadcast: Mon, 5 Nov 2007 16:00:00 UTC This is the VOA Special English Agriculture Report. An Australian farmer stands on land damaged by lack of rain last year To call land marginal mea

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VOA慢速英语2007年（十一）月

VOA慢速英语2011--Agriculture Report - In Africa, the Gree

Agriculture Report - In Africa, the Greening of the Sahel This is the VOA Special English Agriculture Report. Niger is located in the Sahel area south of the Sahara. The west African country is largely hot, dry desert. But since the nineteen eighties

发表于:2019-01-12 / 阅读(146) / 评论(0)

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VOA标准英语2009年-Erosion Wreaks Havoc in Southeastern Niger

By Gilbert da Costa Abuja 31 October 2009 Massive environmental degradation has been the subject of heightened concern across southeast Nigeria as the region continues to be plagued by an erosion crisis that has grown worse over the years. Driving a

发表于:2019-01-14 / 阅读(140) / 评论(0)

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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(184) / 评论(0)

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AGRICULTURE REPORT - Farming on the Edge: Getting the Most O

AGRICULTURE REPORT - Farming on the Edge: Getting the Most Out of Marginal Lands By Mario Ritter Broadcast: Tuesday, August 02, 2005 I'm Barbara Klein with the VOA Special English Agriculture Report.

发表于:2019-01-30 / 阅读(153) / 评论(0)

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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(150) / 评论(0)

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雅思分类词汇：环境资源相关(二)

岩石圈LITHOSPHERE 固态地球SolidEarth 洞穴Caves 地震活动Seismicactivity 地震监测Seismicmonitoring 火山Volcanoes 风蚀Winderosion 陆地生态系统TERRESTRIALECOSYSTEMS 土壤Soils 农

发表于:2019-02-02 / 阅读(152) / 评论(0)

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“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(137) / 评论(0)

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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(134) / 评论(0)

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世界名人简介第55期:旺加里·马塔伊

Dr. Wangari Muta Maathai was born in 1940 in a village in Kenya. In 2004, she became the first African woman to receive the Nobel Peace Prize. The judges valued her contribution to sustainable development, democracy and peace. She was also a member o

发表于:2019-02-19 / 阅读(141) / 评论(0)

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2018年CRI Scientists use massive river model to fight erosion

US Scientists working on new ways to battle the erosion that threatens Louisiana's coastline have a dramatic new tool: a massive replica of the lower Mississippi River. The multi-million US dollar model, complete with flowing water, aims to isolate t

发表于:2019-02-22 / 阅读(180) / 评论(0)

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