地面水水质

It was worse right back there where it's super thick, man. I've never seen anything like it. It just rolled in on. Its quite unreal. Oh man, look at that streak. Look at the holes off of those. It's thick, thick, thick. Like mud. That's unreal. This

发表于:2018-12-02 / 阅读(65) / 评论(0) 分类 CNN2010年(五)月

The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo

发表于:2018-12-02 / 阅读(83) / 评论(0) 分类 Scientific American(十二)月

Water on the Moon Studies in the journal Science report that instruments on three different spacecraft have found evidence for widespread trace amounts of water on the moon. Karen Hopkin reports For all you space buffs who like to keep track of wher

发表于:2018-12-07 / 阅读(84) / 评论(0) 分类 60秒科学

UNIT 9 Text A Pre-reading Activities First Listening 1. As you listen to the passage the first time, circle the words from the list that you hear. ice hate perish snow fear suffice frost despair hold

发表于:2018-12-11 / 阅读(54) / 评论(0) 分类 21世纪大学英语读写教程

[00:00.00]Unit 4 Feeling sick [00:04.78]A These people are not feeling well. [00:10.95]Listen,say and act. [00:14.89]1 What's the matter? [00:19.75]I have a cold. [00:23.90]You should take some medicine. [00:28.06]Listen [00:30.69]take some medicine

发表于:2018-12-13 / 阅读(39) / 评论(0) 分类 新路径小学英语三年级上册(一起)

[00:00.00]Unit 28 [00:06.16]Listening [00:07.62]Self-help books [00:10.10]3 The advice you will hear comes from two books [00:15.20]one gives serious advice,the other is a joke. [00:19.02]Listen and mark the headings for a)-i) [00:22.93]in Exercise 2

发表于:2018-12-13 / 阅读(128) / 评论(0) 分类 北师大版高中英语模块10(选修)

SCIENCE IN THE NEWS - Searching for Answers About What Harms Coral Reefs, and What May Protect Them A look at recent studies of coral reefs. Some scientists say rising temperatures have damaged almost half around the world. Yet many reefs stay color

发表于:2018-12-15 / 阅读(53) / 评论(0) 分类 VOA慢速英语2008年(三)月

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

发表于:2018-12-24 / 阅读(64) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever been to the everglades or tuned into the animal planet, you know that gators can move through the water oh, so silently barely creating a rip

发表于:2019-01-08 / 阅读(83) / 评论(0) 分类 Scientific American(三)月

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(86) / 评论(0) 分类 Scientific American(五)月

Last October, a NASA rocket, traveling at a speed of 9,000 kilometers per hour, smashed into a dark crater on the moon's south pole. Upon impact, the Centaur rocket kicked up a cloud of debris and elements from the moon's surface, creating a so-calle

发表于:2019-01-14 / 阅读(51) / 评论(0) 分类 VOA标准英语2010年(十)月

I want to talk about 4.6 billion years of history in 18 minutes. That's 300 million years per minute. Let's start with the first photograph NASA obtained of planet Mars. This is fly-by, Mariner IV. It was taken in 1965. When this picture appeared, th

发表于:2019-01-18 / 阅读(57) / 评论(0) 分类 英语演讲

Water 'found on Mars' 火星上发现有水 The brine seepage is believed to be in Candor Chasm 咸水渗出物应该是在Candor Chasm There is currently water on the surface of Mars, Nasa scientists believe. The evidence is contained in pictures ta

发表于:2019-01-30 / 阅读(61) / 评论(0) 分类 双语有声阅读

The National Oceanic and Atmospheric Administration (NOAA) confirms that some of the oil escaping from that ruptured well in the Gulf of Mexico is staying beneath the surface, raising new environmental concerns about the disaster. BP says there is no

发表于:2019-01-30 / 阅读(94) / 评论(0) 分类 VOA标准英语2010年(六)月

EXPLORATIONS - Venus Express Spacecraft Explores Earth's Mysterious Sister PlanetBy Mario Ritter and Daniel Kirch Broadcast: Wednesday, May 10, 2006 (MUSIC) VOICE ONE: I'm Steve Ember. VOICE TWO: And

发表于:2019-01-30 / 阅读(52) / 评论(0) 分类 2006年慢速英语(五)月

DEVELOPMENT REPORT - Need to Dig a Well? Start HereBy Gary Garriott Broadcast: Monday, May 15, 2006 This is Shep O'Neal with the VOA Special English Development Report. There are several low-cost ways

发表于:2019-01-30 / 阅读(82) / 评论(0) 分类 2006年慢速英语(五)月

AGRICULTURE REPORT - Simple Ways to Protect Water Quality By Mario Ritter Broadcast: Tuesday, July 26, 2005 I'm Barbara Klein with the VOA Special English Agriculture Report. Afghans wash carrots in d

发表于:2019-01-30 / 阅读(82) / 评论(0) 分类 农业与发展

Science and technology 科学技术 The Arctic 北极海域 Tequila sunset 龙舌兰日落 Global warming may make the northernmost ocean less productive, not more so 全球变暖对北极海域生产力的负面影响 ON SEPTEMBER 16th 2012, at the

发表于:2019-02-05 / 阅读(110) / 评论(0) 分类 经济学人科技系列

其实,推断题没有想象中的那么难,因为托福文章有很清晰的逻辑架构,T(topic)+A(aspect)+A(attitude)的篇章结构和TS(topic sentence)+D(detail)的段落结构是几乎每节课我都会提到的,只有明白了文章的写

发表于:2019-02-18 / 阅读(74) / 评论(0) 分类 托福英语

Science and technology 科学技术 The Arctic 北极 Tequila sunset 龙舌兰日落 Global warming may make the northernmost ocean less productive, not more so 全球变暖可能降低最北部海域的活力,而不是使之更有生命力。 ON S

发表于:2019-02-18 / 阅读(46) / 评论(0) 分类 经济学人科技系列