Without air, there would be no fire

Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(

跟Susan一起学美语 第99期:苏珊讲单词(9)air gas和atmosphere的区别

9. air/gas/atmosphere The room was so stuffy that it felt like there was no air. Did you remember to switch off the gas? Despite the argument which took place earlier , the atmosphere was amicable.

北师大版高中英语模块1--Unit 2 Heroes Les1-2

[00:00.00]When the spaceship was doing its seventh circle [00:03.54]Yang Liwei showed the flags of China [00:05.67]and the United Nations, [00:07.43]expressing the wishes of the Chinese people [00:09.64]to explore and use space peacefully. [00:13.21]

大学英语自学教程上UNIT8

[00:02.25]第八单元 课文A [00:04.49]Telecommunication via Satellite [00:06.71]卫星通信 [00:08.93]At the beginning of the twentieth century, [00:11.31]20世纪初 [00:13.69]there were four powerful means of transmitting and receiving information [00:17.37

柯灵思英语-英语听力高手36

柯灵思英语-英语听力高手36

Alien Neighbors 寻访外星人 6

.....green plants ultimately. When it first appeared therefore, it would have been seen as a poison, it would have been a pollutant. But gradually, through Darwinian natural selection, living organism

SSS 2008-06-23

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? On June 4th we told you about iron snowflakes on Mercury. Today we have some radical news about the atmosphere of Venus. Literally, a radical is a molecule that reacts e

英语听力文摘 English Digest 596、以前的昆虫是很庞大的！

In The Past, Insects Were Huge! Once upon a time, hundreds of millions of years ago, many insects were much larger than they are today. Scientists have found fossilized remains of dragonflies with wingspans several feet in diameter. Other insects wer

CCTV9英语新闻：伊拉克大选之前严重的安全挑战

For more on the preparatory work before the election, our correspondent Wisam Al Bayati joins us from Baghdad. Thanks for joining us Wisam. Q1: What are the atmosphere and security situation where you are, one day before this important election? Q2:

SSS 2010-12-06

When they wheel you into the operating room, climate change is probably the last thing on your mind. But maybe it should be on your anesthesiologist's mind. Because the gases used to knock you out contribute to global warming. Researchers, including

VOA慢速英语-SCIENCE IN THE NEWS - 'Dead Zones' Expand in Coastal

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. This week, we will tell about two studies. Both involve the world's oceans. One study examined the health of coastal waters for fish an

古代地球含有更多氧气，超过科学家预料

Ancient Earth Had More Oxygen than Scientists Thought 古代地球含有更多氧气，超过科学家预料 Researchers say the Earth had much more oxygen nearly a billion years ago than scientific experts thought. That claim could change theories a

Small asteroid to pass Earth: NASA

LOS ANGELES, June 24 (Xinhua) -- Near-Earth asteroid 2011 MD will whip past Earth on June 27, but will not pose any threat, NASA's Jet Propulsion Laboratory (JPL) said on Friday. The asteroid will pass only 12,000 kilometers (7,500 miles) above the E

英语听力：探索发现 科学新发现：我们的大气层-10

Evidence of the first oxygen in the atmosphere. The gas was released by a humble microscopic living organism called cyanobacteria. Well it turns out cyanobacteria are the only things that can actually produce oxygen, so we know that at some point cya

英语听力：探索发现 科学新发现：我们的大气层-9

We were left with this atmosphere made of molten rock and vaporous rock. It took millions of years for that atmosphere to fall out and to be replaced by an atmosphere made up of nitrogen and carbon dioxide and water vapour. These new gases came from

跟着Gwen学英语之每日早读 第239期

Everybody fights every now and then, especially best friends. But you got to make up fast. 语音讲解 单词发音 got to=gotta especially adv.特别；尤其；格外 连词发音 now and then make up fast 轻读重读 重读：fights/especially/m

经济学人: 搜寻火星生命 (2)

Regardless of their source, any methane molecules in Mars's atmosphere would, on the basis of experiments on Earth, be expected to hang around for centuries. 不论它从何而来，根据地球的实验，火星大气中的任何甲烷分子将有望徘

与天气有关的英语词汇大全

atmosphere 大气 climate 气候 elements 自然力量(风 、雨) temperature 气温 to be warm, to be hot 天气热 to be cold 天气冷 frost 霜 hail 冰雹 snow 雪 thunder 雷 wind 风 mist 雾 cloud 云 haze 霾 rain 雨 downpour, shower 暴雨

与空气污染有关的托福词汇

雾霾 haze; 烟雾 smog; 空气污染指数 air pollution index; 橙色预警 orange alert; 悬浮颗粒物 airborne particulate matter; 可吸入颗粒物 inhalable particle; 有毒物质 toxic substance; 空气质量检测 air quality monitoring; 实

英语听力文摘 English Digest 247、呼吸甲烷

A Fresh Breath of Methane 很早很早以前地球有很微量的氧气，而且地表状况十分恶劣。大气主要是N2和Co2，后来通过复杂的变化，地球开始出现了厌氧型生物。在生命的作用下，地球的氧气开始不断