step by step 第四册 lesson 137

UNIT 69 POPULAR SCIENCE (Ⅱ) Lesson 137 Part Ⅰ Warming-up Exercises Instruction-following: Square or Circle? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Score: _______ Part Ⅱ Preserving The Environment Vocabu

减肥有一个严重的副作用

According to the Newscientist of September 7, weight loss has a serious downside: it leads to the release of persistent organic pollutants (POPs), which may have a significant impact on health. POPs are man-made chemicals which enter the food chain f

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

职业技术英语口语 第85期:环境问题 空气污染

Air pollution 空气污染 A: I've heard of ground-level ozone but can you explain what it is exactly? A:我听说近地面臭氧，但是你能确切解释一下是什么吗？ B:Yes, it's one of the main air pollutants. Factories don't emit it dire

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

钟南山：中国治霾十年可见成效

3月5日在京召开的十二届全国人大三次会议开会间隙，著名呼吸道疾病专家，全国人大代表钟南山接受媒体采访。[魏晓昊/中国日报] It might take China a decade to tackle its notorious smog problem, said Zhon

《穹顶之下》：同呼吸共命运

柴静说，这是一个母亲和雾霾间的私人恩怨；观众说，看过这部纪录片才知道自己能为环保做这么多；环保部长说，感谢柴静唤起全民对环境问题的关注 Without any previous notice, a documentary domin

2006年VOA标准英语-Experts See Hope for Reversing Drylands Degrada

By Gilbert da Costa Abuja 16 October 2006 An international campaign to draw attention to the huge agricultural potential of the Sahel drylands of Africa is gaining ground, with a recent workshop in Niamey, the capital of Niger. The campaign seeks to

大气污染来自汽车尾气

According to the latest research, vehicles, coal-burning, airborne dust and industrial production account for 85 to 90-percent of the major airborne pollution sources in most Chinese cities. Vehicles are the biggest polluters in Beijing, Hangzhou, Gu

报告显示 我国161座城市空气质量得到改善

Effective pollution controls adopted in 161 major Chinese cities have greatly improved air quality, a green organization said last Monday. 一家绿色环保组织上周一表示，中国161座主要城市采取的有效的污染防治措施使空气质

China mulls BBQ ban in major cities

BEIJING, Feb. 20 (Xinhua) -- The pressures of severe air pollution have prompted China's environmental watchdog to consider pushing forward a legal ban on barbecues in densely populated urban areas. Barbecues should be strictly controlled in cities t

“回到未来”日：专家预测2045年的生活

《回到未来2》上映于1989年，片中主角从1985年穿越到了2015，演绎了对2015年的一系列怪异预测。 Although several of the film's predictions, like video calls and wearable technology, came true, Back to the Future II showe

美国国家公共电台 NPR Melting Ice In Greenland Could Expose Serious Pollutants From Buried Army Base

Melting Ice In Greenland Could Expose Serious Pollutants From Buried Army Base KELLY MCEVERS, HOST: Buried below the ice sheet that covers most of Greenland, there is an abandoned U.S. Army Base. Camp Century had trucks and tunnels - even a nuclear r

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

科学家将污染物变成打印机墨水

Anirudh Sharma doesn't just want to pull harmful carbon from the air. He wants to offer a cheaper alternative to the exorbitant costs of ordinary printer ink. 阿尼鲁德夏尔马不仅想除掉空气中的有害炭物质，还希望创造一种更便

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

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

研究称减肥可能会污染血液

According to the Newscientist of September 7, weight loss has a serious downside: it leads to the release of persistent organic pollutants (POPs)， which may have a significant impact on health。 POPs are man-made chemicals which enter the food cha

At Least One-Third of Himalayan Ice to Disappear by 2100

At least one-third of the ice in the Himalayan Mountains will disappear by the end of this century because of rising temperatures, scientists said this week. This will threaten river flows that provide water resources for 1.9 billion people. Huge gla

经济学人267:测量 质量效应

Science and technology 科学技术 Measurement 测量 Mass effect 质量效应 A better way to clean the world's one true kilogram 清洁世界上真正一千克的更好方法 IN SEVRES, on the outskirts of Paris, sealed beneath a triplet of bell j