紫外辐射标准

SSS 2009-12-22

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(165) / 评论(0)

Scientific American(十二)月

VOA慢速英语20060705a

HEALTH REPORT - Health: Looking for Skin CancerBy Brianna Blake Broadcast: Tue, 4 Jul 2006 16:00:00 UTC I'm Faith Lapidus with the VOA Special English Health Report. Tanning beds produce ultaviolet ra

发表于:2018-12-07 / 阅读(146) / 评论(0)

2006年慢速英语（七）月

俄勒冈青蛙数量急剧减少的调查分析

21 俄勒冈青蛙数量急剧减少的调查分析 DATE=5-11-01 TITLE=ENVIRONMENT REPORT - Oregon Frog Study BYLINE=Cynthia Kirk （Start at 59

发表于:2018-12-07 / 阅读(111) / 评论(0)

自然探索

Earth and Sky:Sunscreened Plants 遮光植物

Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart

发表于:2019-01-02 / 阅读(219) / 评论(0)

(科普英语)Earth and Sky

学个词Learn a Word 第832期 Double standard

今天我们要学的词是double standard。Double standard, 双重标准。美国国会众议院议长佩洛西指责共和党人在医疗保健改革的辩论中使用双重标准, House Speaker Nancy Pelosi accused Republicans of having a double

发表于:2019-01-07 / 阅读(175) / 评论(0)

英语单词荟萃

单词超市第15期 double standard

今天要学的一个词组是：double standard。 Double standard是指双重标准。美国连锁商店沃尔马允许在中国的分店组织工会，却不允许在美国的商店组织工会。媒体报导的标题说：Critics claim double sta

发表于:2019-01-11 / 阅读(231) / 评论(0)

英语单词荟萃

Health Experts Detail Radiation Symptoms

U.S. health experts monitoring Japan's nuclear crisis are seeking to explain health risks from radiation（放射） exposure, while cautioning that radiation levels measured this week at the Fukushima-Daiichi power plant in northern Japan have not y

发表于:2019-01-11 / 阅读(160) / 评论(0)

英语新闻

VOA慢速英语-Health Report - Among Vitamins, D Seems Short for 'D

Studies are finding that the vitamin known for building strong bones may also help prevent many diseases. Transcript of radio broadcast: 15 July 2008 This is the VOA Special English Health Report. Vitamin D helps bones and muscles grow strong and he

发表于:2019-01-11 / 阅读(145) / 评论(0)

VOA慢速英语2008年（七）月

托福听力分学科词汇（二）

物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声，洪

发表于:2019-01-17 / 阅读(141) / 评论(0)

托福英语

NPR边听边练112:蜜蜂生活的新秘密

主餐一道：泛听练习以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。一、泛听建议： 1、完整听一遍，掌握

发表于:2019-01-22 / 阅读(149) / 评论(0)

NPR边听边练

HEALTH REPORT - Study: Sunshine and Vitamin D May Improve Lu

HEALTH REPORT - Study: Sunshine and Vitamin D May Improve Lung Cancer Survival By Cynthia Kirk Broadcast: Wednesday, May 18, 2005 I'm Gwen Outen with the VOA Special English Health Report. Sunlight he

发表于:2019-01-30 / 阅读(250) / 评论(0)

健康与经济

WHO Warns Against Self-Medication as Antidote to Radiation

The World Health Organization (WHO) warns against the indiscriminate(任意的无差别的) use of potassium iodide as a precaution against nuclear radiation. WHO is issuing this advisory following reports of people in Japan and elsewhere who are usi

发表于:2019-02-06 / 阅读(294) / 评论(0)

英语新闻

Japanese Radiation Adviser Quits in Rebuke

A key Japanese adviser on radiation（放射） leaks at the country's disabled Fukushima nuclear power facility has quit in protest over the government's handling of the disaster. The adviser, Toshiso Kosako, a radiation safety expert at the Univer

发表于:2019-02-06 / 阅读(154) / 评论(0)

英语新闻

food from Japan to be tested for radiation

NEW DELHI, March 16 (Xinhua) -- The Indian government has ordered food originating from（发源于） Japan to be tested for radiation in the wake of explosions at a Japanese nuclear plant following a devastating earthquake-tsunami last Friday, repo

发表于:2019-02-07 / 阅读(139) / 评论(0)

英语新闻

U.S. finds low levels of radiation in milk

WASHINGTON, March 30 (Xinhua) -- A trace amount of radioactive(辐射性的) iodine（碘） has been found in a sample of milk from the west state of Washington, the U.S. Environmental Protection Agency and the Food and Drug Administration (FDA) sai

发表于:2019-02-11 / 阅读(149) / 评论(0)

英语新闻

香港兴起怪异“食日”减肥法

A new 'health' trend in Hong Kong sees women staring straight at the sun in the belief that it will replace their need for food and even improve their vision and sleep quality, reports Oriental Daily. 据《东方日报》报道，香港女性中兴起

发表于:2019-02-15 / 阅读(194) / 评论(0)

阅读空间

China releases standard names of Diaoyu Islands

BEIJING, March 3 (Xinhua) -- China has released standard names and descriptions of the Diaoyu Island and its affiliated isles, according to sources with the State Oceanic Administration. The Diaoyu Island is named as Diaoyu Island, with its Chinese p

发表于:2019-02-18 / 阅读(165) / 评论(0)

英语新闻

日本奇葩霓虹面条你敢吃吗？

A man who created neon noodles is being scrutinised as he's refusing to reveal what exactly has given them their crazy colours. 由于拒绝披露关于五彩面条的上色细节，霓虹色面条的发明者受到严厉审视。 The fluorescent foo

发表于:2019-02-18 / 阅读(157) / 评论(0)

阅读空间

每日一词【1003】gold standard

今天我们要学的词是gold standard。 Gold standard, 意思是同类事物的最高标准。 The iPhone is the gold standard in the smartphone market, iPhone是智能手机市场上最棒的产品。曾带领加州大学洛杉矶分校十次赢得

发表于:2019-02-18 / 阅读(245) / 评论(0)

英语每日一词

学个词Learn a Word 第1003期 Gold standard

发表于:2019-02-18 / 阅读(196) / 评论(0)

英语单词荟萃

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