step by step 第四册 lesson 156

Lesson 156 Part Ⅰ Warming-up Exercises Spot Dictation: The Temperature Check Last winter we had kind of a, uh, cold winter and I was home in bed _____ one night and listening _____ my radio. And, uh

Listen this way听力教程第二册-17

Listen this way听力教程第二册-17

Scientists: Ozone-Eating Chemical Mysteriously Rising

Scientists have found that levels of a now-banned chemical are rising again in Earths atmosphere. The chemical is called CFC-11. It is the second most common kind of CFC, short for chlorofluorocarbon. Chlorofluorocarbons were once widely used in many

北京新空气污染应急预案

The Beijing Municipal Heavy Air Pollution Emergency Response Program includes a four-tier color alert system. A Red alert, the highest, will be issued for heavy pollution that is expected to last more than 3-days. An air quality index of over 200 wil

SSS 2009-08-17

Youre not under arrest, despite the fact that you probably have some drugs in your pocket. Because theres a good chance your paper money contains trace amounts of cocaine. According to a study presented August 16th at the American Chemical Societys n

工作状态不佳？都怪二氧化碳

You might think it's your colleagues or the pressures of work that's getting you down at the office, but new research suggests it could well be the air you're breathing instead. Scientists in the US have found that the concentration of carbon dioxide

雅思剑11 必备词汇--Test4

剑桥雅思11出版后，很多同学都争抢做这本书感受最新的命题趋势。同学们在做剑11 听力的时候发现录音语速的确变快，填空题数量增加。下面网雅思频道就为同学们整理剑11听力中出现的词汇

(1)Springtime Ozone Loss

25 大气层中臭氧正日渐稀薄 DATE=3-21-01 TITLE=SCIENCE REPORT - (1)Springtime Ozone Loss BYLINE=George Grow (Start at 1'00

China uses PM 2.5 in weather alert system

BEIJING, Jan. 29 (Xinhua) -- China's meteorological authority has introduced a new weather warning system for smog which will use readings of PM 2.5, a particle pollutant. The announcement comes as thick haze chokes many cities. The National Meteorol

英国空气污染问题恶化引关注

This week large parts of England and Wales have fallen under the spell of a hazy sky. The Department of Environment, Food, and Rural Affairs (DEFRA) said pollution in the southeast of England, including London, reached nine on a scale of 10. Jill Mea

国务院发布十三五生态环境保护规划

The State Council released a national plan on environmental improvements for the 13th Five-Year Plan period (2016-2020), detailing tasks to clean polluted air, water and soil. 国务院日前印发了十三五期间(2016-2020年)改善环境的国家规

China promises to promote sustainable development

China promises to promote sustainable development SAN JOSE, Oct. 25 (Xinhua) -- A Chinese official Thursday expressed here China's willingness and determination to work with the international community to promote sustainable development. Speaking at

微软和IBM从中国雾霾预报中发现商机?

Two of the world's largest technology firms, IBM and Microsoft, are vying to tap the nascent, fast-growing market for forecasting air quality in China. 在中国的空气质量预测市场方兴未艾、高速发展之际，全球最大的两家科技公

研究人员开发新技术应对雾霾

Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的

保护环境，不要空气污染英语对话

保护环境，不要空气污染英语对话 我国最大的坏境问题便是空气污染和水资源污染严重，导致各种疾病发病率怎家。环境问题是一个全球性问题，世界携手对地球负责，才能共同解决。保护地

Millions Celebrating Earth Day Around the World

Millions of people around the world celebrated Earth Day Friday by pledging to commit personal acts of green to improve the environment(环境). This is the 41st anniversary of the first Earth Day, observed in the United States in the aftermath of a

China strives to reduce air pollutants

BEIJING, Feb. 5 (Xinhua) -- China will make more efforts to reduce PM 2.5 pollutants, as well as other pollutants, a government official said Tuesday. A national obligatory target will be set to limit PM 2.5 emission, which is a fine particulate matt

Smog choking swaths of China thinning out

BEIJING, Jan. 31 (Xinhua) -- Smog blanketing large swaths of China was thinning out on Thursday, with air pollution in some cities easing, the Ministry of Environmental Protection (MEP) said. According to monitoring by 10 a.m., smog-hit regions had s

TED演讲 获奖青少年,科技在行动(7)

So today I want to show you my interactive software model that I created. 所以今天我想向你们展示我创造的互动软件。 I'm going to show it to you on my laptop. And I have a volunteer subject in the audience today, Julie. 我将用我的

研究:办公室空气质量影响工作效率

Working in a well-ventilated 'green' office can help boost your brainpower, researchers have found. 研究人员发现，通风良好的绿色办公室有助于提升脑力。 People whose desk space is well ventilated with below average indoor pollu