紫外光及可见光检测器

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(250) / 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(219) / 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(172) / 评论(0)

自然探索

80天攻克雅思核心词汇-43

automate自动化 carton纸箱 detergent去污剂 hardware硬件 harness利用 granary粮仓 junction交叉点 lever杠杆，工具 platform平台 portable便携 register注册 shield遮护 symbolize象征 tissue纸巾，组织 towel毛巾 ultraviole

发表于:2018-12-30 / 阅读(219) / 评论(0)

80天攻克雅思核心词汇

国家地理-2008-07-12 Lie Detector 测谎仪的奥秘

It might be the cheeks flushing with embarrassment or a voice choking with emotion. Our physical reactions can reveal what we truly feel. And some think they can show when someone's lying. Typically when a person tells a lie, they begin to sweat. I'

发表于:2018-12-30 / 阅读(328) / 评论(0)

国家地理2008年

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(319) / 评论(0)

(科普英语)Earth and Sky

英语口语大赢家Topic286:时尚太阳镜 Sun Glasses

时尚的太阳镜已经成为明星扮酷的焦点，当然粉丝们也就跟着追捧起来，古奇当然不会错过这种新兴的时尚啦，一起来领略一下时尚太阳镜的精彩吧！ Listen Read Learn Gucci: Have you read the latest issue of Hit Light Music? May: Sure. The cover star of this issue

发表于:2019-01-07 / 阅读(207) / 评论(0)

英语口语大赢家

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(236) / 评论(0)

VOA慢速英语2008年（七）月

英语俚语天天说第325期:"防晒霜，晒伤，紫外线"英语怎么说?

Sunscreen 防晒霜 I need to apply some sunscreen every time I am going out in summer. 夏天我每次出去的时候，我都需要涂些防晒霜。 SPF 防晒系数 Sun Protection Factor An SPF of 30 means that you could be out in the sun 30 time

发表于:2019-01-17 / 阅读(188) / 评论(0)

英语俚语天天说

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(219) / 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(216) / 评论(0)

NPR边听边练

公众人物毕业演讲第168期:比尔·奈马萨诸塞大学2014(15)

is a consequence of ultraviolet light, of latitude and climate. 这只不过是紫外线纬度和气候造成的。 There really is no such thing as race. 实际上并没有什么种族。 We're one species, each of us much much more alike than we a

发表于:2019-01-25 / 阅读(187) / 评论(0)

公众人物毕业演讲

英语听力文摘 English Digest 478、日光浴床安全吗？

Are Tanning Beds Safe? Millions of people go to tanning salons, some to get a base tan before they go away on a beach vacation. The idea of the base tan is that it will protect you from burning on your sun excursion, so that what you end up with is a

发表于:2019-01-26 / 阅读(186) / 评论(0)

英语听力文摘 English Digest

孙燕姿的“绿光”真实存在

还记得孙燕姿那首红遍大江南北的《绿光》吗？翻越过前面山顶、层层白云，绿光在哪里？不知道有多少人跟小编一样，以为歌里的绿光只是对幸福的比喻。而其实在现实中，绿光是真实存在

发表于:2019-01-28 / 阅读(223) / 评论(0)

实用英语

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(355) / 评论(0)

健康与经济

《原来如此》这就是社交网络

Welcome to Social Networking in Plain English. 本期介绍社交网络。 Networks get things done. Whether it's sending a letter or lighting your home. Networks make it happen.To get from Chicago to Santa Fe, we need to see the network of roads tha

发表于:2019-02-04 / 阅读(177) / 评论(0)

英语万花筒

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(253) / 评论(0)

阅读空间

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(226) / 评论(0)

阅读空间

2016年CRI Secret Restaurant in Shanghai Refines High-end Dining

Kaleidoscope-like images are projected on the walls, and a long dining table lights up in a futuristic fashion. This is Ultraviolet, an exclusive eatery in Shanghai that resembles a scene from a science fiction film. The dining floor features a 10-se

发表于:2019-02-21 / 阅读(209) / 评论(0)

2016CRI中国国际广播电台

托福口语如何否定句式集锦

1. There is not a moment to be lost. 分秒必争。 2. There is noholding back the wheel of history. 历史车轮不可阻挡。 3. Nota soul was anywhere visible. 到处见不到一个人。 4. I felt sorry for not coming in time. 我很抱歉没准时

发表于:2019-03-13 / 阅读(250) / 评论(0)

托福英语

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