铬铁

Storing Drinking Water

Broadcast: August 4, 2003 This is Bill White with the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout the world, drinking water has to be stor

发表于:2018-11-27 / 阅读(546) / 评论(0)

VOA2003（下）-发展与科学

美国英语听力80篇1 Lesson02

[00:09.95]Six weeks ago, the movie Erin Brockovich opened the United States. [00:16.95]So far, it has earned at least 100,000,000 dollars. [00:22.47]It tells a true story about a young woman who helped people in a California town gain money from an e

发表于:2018-12-03 / 阅读(101) / 评论(0)

标准美语发音的13个秘诀 CD4

Want to Choose Better Words?

Want to Choose Better Words? Our words matter. Our words have always mattered, but they matter more now that the Internet gives us the power to make our words permanently public. Words might help or hurt someone. Our words may have more power than we

发表于:2018-12-16 / 阅读(70) / 评论(0)

2016年VOA慢速英语(四)月

美国有线新闻 CNN 水中何种元素引发癌症?

Could an element commonly found in Americans` tap water caused cancer? A nonprofit environmental group is sounding the alarm about something called chromium-6. The U.S. government says high levels of it in the air can be carcinogenic, meaning they ca

发表于:2018-12-20 / 阅读(76) / 评论(0)

CNN美国有线新闻2017年2月

SSS 2011-06-23

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Birds and sea turtles can migrate thousands of miles, by reading the Earth's magnetic cues. But we too might have magnetic sensing abilitiesin our eyes. So say

发表于:2018-12-24 / 阅读(53) / 评论(0)

Scientific American(六)月

【电影预告片填空】生存者

Help! There's someone hurt! - What are you hearing, Sullivan? - According to first responders it was a bomb. - How many? - Four of yours and five passersby. - Have anyone claimed responsibility? - We found this. - Do you think she's dead? - We can't

发表于:2018-12-28 / 阅读(74) / 评论(0)

英文电影预告片填空

不择手段背单词(727):bauxite铝土矿

bauxite, ['b?:ksait] n 铝土矿（铝的基本矿石）【记】1）Baux是法国地名，xite＝site场所。Baux因产铝而知名。 2）baux读：宝库，xite场所。产铝的宝库

发表于:2018-12-30 / 阅读(77) / 评论(0)

不择手段背单词

如何修复你的Facebook新闻提要

How to Fix Your Facebook News Feed 如何修复你的Facebook新闻提要 Has your Facebook News Feed become a mess of political stories, unwanted videos and angry rants? Are you wishing for the days when your feed was filled with posts from friends

发表于:2019-01-02 / 阅读(102) / 评论(0)

2017年VOA慢速英语(二)月

VOA慢速英语--5个尝试Firefox量子浏览器的理由

5 Reasons to Try Firefox Quantum Browser Mozilla has released a new update of its Firefox browser that it says is much faster and provides a better overall user experience. But can the new version called Firefox Quantum compete with the worlds curren

发表于:2019-01-03 / 阅读(135) / 评论(0)

2017年VOA慢速英语(十一)月

DEVELOPMENT REPORT - Storing Drinking Water

DEVELOPMENT REPORT – January 7, 2002: Storing Drinking Water By Gary Garriott This is the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout th

发表于:2019-01-07 / 阅读(229) / 评论(0)

农业与发展

VOA慢速英语2013 AS IT IS 2013-05-23 Pollution Forces Residents from California Town

AS IT IS 2013-05-23 Pollution Forces Residents from California Town Hello. Im Jim Tedder in Washington. Welcome to a special edition of As It Is. Seventeen years ago, an American energy company paid hundreds of millions of dollars to settle legal cla

发表于:2019-01-12 / 阅读(86) / 评论(0)

2013年VOA慢速英语(六)月

VOA标准英语2010年-Iron-Regulating Protein Could Help Bat

Almost all cells need iron to grow. Now, researchers have identified a link between the body's system for regulating iron and breast cancer. The discovery could help doctors predict the course of breast cancer disease and even help them decide the mo

发表于:2019-01-13 / 阅读(229) / 评论(0)

VOA标准英语2010年(八)月

VOA双语新闻：运铁素蛋白质对肿瘤细胞的影响

发表于:2019-01-19 / 阅读(87) / 评论(0)

VOA双语新闻 2010年8月

pbs高端访谈:危险化学品六价铬污染美国饮水系统

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(128) / 评论(0)

PBS访谈环境系列

pbs高端访谈:保护公民免受污染饮水的威胁

GWEN IFILL: Now NewsHour science correspondent Miles O'Brien begins a two-part look at America's drinking water, and the regulatory system that is supposed to guarantee its safety. His report is the result of a partnership with the Center for Public

发表于:2019-01-27 / 阅读(85) / 评论(0)

PBS访谈环境系列

经济学人242:浏览器之战

Browser wars 浏览器之战 Chrome rules the web 谷歌浏览器掌控网络 What Googles browser has in common with Queen Victoria 谷歌浏览器跟维多利亚女王的共同点是什么？ Aug 10th 2013 |From the print edition 20130810_WBM200.pn

发表于:2019-02-06 / 阅读(99) / 评论(0)

经济学人商业系列

让你的电脑“健步如飞”

让你的电脑健步如飞开始察觉到你的台式机或笔记本电脑变的有那么点儿不好用了？只用了几个月，你的PC或MAC就失去了它的锐气，感谢硬盘驱动器中的某块碎片吧，这可能是因为太多程序同

发表于:2019-02-07 / 阅读(138) / 评论(0)

实用英语

Google to launch Chrome notebooks in June

SAN FRANCISCO, May 11 (Xinhua) -- Google on Wednesday introduced a series of notebook computers based on its Chrome operating system, stepping up its competition against Microsoft. Google unveiled the Chromebook at its annual developers conference(会议

发表于:2019-02-08 / 阅读(99) / 评论(0)

英语新闻

谷歌最新数据显示网络的安全性正在提高

While reports of major hackings continue to make news, the sites you visit are safer than ever before. 虽然关于网络黑客的报道仍旧屡见不鲜，但事实是你所访问网站的安全系数比以往任何时候都高。 In fact, the web

发表于:2019-02-20 / 阅读(100) / 评论(0)

英语新闻

英语听力文摘 English Digest 196、不锈钢的秘密

Why Stainless Steel Does Not Rust But Other Metals Do? 不锈钢（Stainless Steel）指耐空气、蒸汽、水等弱腐蚀介质和酸、碱、盐等化学浸蚀性介质腐蚀的钢，又称不锈耐酸钢。实际应用中，常将耐弱腐蚀介质

发表于:2019-02-24 / 阅读(124) / 评论(0)

英语听力文摘 English Digest

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alimentary glycosuria

belly robber,belly-robber