水选材料

VOA标准英语2014--新的太阳能电池减少生产中对环境的危害

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(175) / 评论(0)

VOA标准英语2014年(六月)

VOA常速英语2016--新型滤水技术或能带来价格合理清洁饮用水

新型滤水技术或能带来价格合理清洁饮用水Developing the perfect water filter is Baoxia Mi's goal. Growing up in China, she learned the value of clean drinking water early on. Now at the University of California, Berkeley, the environ

发表于:2018-12-08 / 阅读(194) / 评论(0)

VOA标准英语2016年(三月)

最In导购口语第48期:品质优良

导购口语: The material is pure cotton. It's comfortable to wear. 纯棉面料串起来舒服。 This material is of good / superior quality and holds quite well. 这种材料质量很好。 Quality is excellent / superior / very good / fine. 品质

发表于:2018-12-25 / 阅读(104) / 评论(0)

最In导购口语

奥运28大项第34课 Flatwate皮划艇静水 02

北京奥运28大项参与，竞争，分享，进步 Flatwater 皮划艇静水英文原文 All kayaks and canoes shall carry a vertical plate, made of non-transparent material, marked with black numbers on a white background, indicating the lane. The numbers on the plate

发表于:2018-12-30 / 阅读(219) / 评论(0)

奥运28大项比赛

60秒科学:自动除尘的太阳能电池板

太阳能电池板能通过自发电脉冲震落其灰尘，以确保最大限度的获得光照。 Imagine giant fields filled with photovoltaic solar panels, soaking up rays. The best spots to put such panels are obviously sunny, with little rain.

发表于:2019-01-02 / 阅读(173) / 评论(0)

60秒科学

VOA慢速英语20060228a

AGRICULTURE REPORT - Bird Flu: Composting the Remains of Farm BirdsBy Mario Ritter Broadcast: Tuesday, February 28, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Farmers usuall

发表于:2019-01-02 / 阅读(137) / 评论(0)

2006年慢速英语（二）月

Emergency Medical Methods

Broadcast: Feb 18, 2003 By George grow VOICE ONE: This is Phoebe Zimmerman. VOICE TWO: And this is Doug Johnson, with science in the news, VOA Special English program about recent developments in scie

发表于:2019-01-02 / 阅读(214) / 评论(0)

VOA2003（上）-健康资讯

SSS 2008-06-10

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d

发表于:2019-01-08 / 阅读(207) / 评论(0)

Scientific American(六)月

VOA慢速英语2009年-SCIENCE IN THE NEWS - On Chesapeake Bay, a

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Shirley Griffith. Today we tell about efforts to save an island in the American state of Maryland. Poplar Island lies about fifty-five kilometers sout

发表于:2019-01-11 / 阅读(169) / 评论(0)

VOA慢速英语2009年（十）月

VOA慢速英语-Agriculture Report - Much About Mulch

Why mulching is one of the best things to do for plants. Transcript of radio broadcast: 14 July 2008 This is the VOA Special English Agriculture Report. Mulch is spread in a city park in Atlanta, Georgia Mulch is important to farmers. Mulch is a pro

发表于:2019-01-11 / 阅读(163) / 评论(0)

VOA慢速英语2008年（七）月

VOA慢速英语 2007 0403a

This is the VOA Special English Agriculture Report. Spreading mulch Mulch is important to farmers. Mulch is a protective cover of material that is spread on top of soil. It is usually made out of organic material, like crop waste. Farmers may keep t

发表于:2019-01-11 / 阅读(157) / 评论(0)

VOA慢速英语2007年（四）月

VOA慢速英语 2008 0408b

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty. This week, we will tell about icy material shooting up from a moon of the planet Saturn. We will also tell about an experimental drug fo

发表于:2019-01-11 / 阅读(185) / 评论(0)

VOA慢速英语2008年（四）月

VOA标准英语2012--Lake Sediment Could Better Date Ancient Finds

Lake Sediment Could Better Date Ancient Finds Radiocarbon dating is the best-known and most widely used method to determine the age of organic material, such as bone or wood or plant matter. All such material contains radioactive carbon atoms, known

发表于:2019-01-14 / 阅读(143) / 评论(0)

VOA标准英语2012年(十月)

VOA标准英语2014--Scientists Create Blackest Material Ever

Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h

发表于:2019-01-14 / 阅读(184) / 评论(0)

VOA标准英语2014年(七月)

TED演讲:可能存在生命的三颗卫星和一颗行星(3)

And in fact, Curiosity -- which has been roving on the surface now for about three years -- 事实上，好奇号探测车，在火星表面上漫游已经有三年了 has really shown us that it's sitting in an ancient river bed, where water flowed

发表于:2019-01-18 / 阅读(202) / 评论(0)

TED演讲科学篇

VOA标准英语2010年-Our World – 2 January 2010

VOA's Weekly Science and Technology Magazine Art Chimes 05 January 2010 MUSIC: Our World theme This week on a special edition of Our World, some of our favorite stories of the past year ... including a high-tech wrinkle to that humblest of building m

发表于:2019-01-23 / 阅读(148) / 评论(0)

VOA标准英语2010年(一月)

AGRICULTURE REPORT - Mulch

AGRICULTURE REPORT - September 3, 2002: Mulch By George Grow This is Bill White with the VOA Special English AGRICULTURE REPORT. Mulching is one of the best things people can do for their plants. Mulc

发表于:2019-01-30 / 阅读(191) / 评论(0)

农业与发展

AGRICULTURE REPORT - Food for Crops: How to Get the Most Fro

AGRICULTURE REPORT - Food for Crops: How to Get the Most From Organic Fertilizer By Mario Ritter Broadcast: Tuesday, August 23, 2005 I'm Shep O'Neal with the VOA Special English Agriculture Report. Th

发表于:2019-01-30 / 阅读(210) / 评论(0)

农业与发展

CCTV9英语新闻：480,000 affected by poisoned water system in W. Virginia

Up to 480 thousand residents in the American state of West Virginia have been affected by a chemical spill that leaked into the states water supply. At least one fourth of the population has been affected by the spill. The president of a West Virgini

发表于:2019-02-07 / 阅读(157) / 评论(0)

CCTV9英语新闻2014年01月

英国学生科学读本第32期:一块软木(1)

Lesson 32 Only A Cork 第32课一块软木 Corks are so cheap and so common, that every child who reads this Lesson can get a cork to handle and to look at. Let us try with a pen-holder to keep a cork down at the bottom of a glass of water. It is ve

发表于:2019-02-13 / 阅读(128) / 评论(0)

英国学生科学读本

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