美国有线新闻 CNN 特朗普下令打击叙利亚军事基地 首要任务转为赶阿萨德下台

AZUZ: The U.S. government now says it's a priority to remove Syria's leader from power. That's a significant change for the Trump administration. It previously did not prioritize the ouster of Syrian President Bashar al Assad. But that was before a c

VOA常速英语2018--美国指责阿萨德政权对平民使用化学武器

Today in Syria, we are confronted once more with some of the worst atrocities known to man, said National Security Council Advisor Lieutenant General HR McMaster in a speech at the Holocaust Museum in Washington. 如今在叙利亚，我们再次面临

万花筒 2013-10-19&10-22 禁止化学武器组织获得2013年诺贝尔和平奖

The winner of the Nobel Peace Prize was announced this morning. This year the award goes to the Organization for the Prohibition of Chemical Weapons, an international group whose current mission is the destruction of the Syria's chemical weapons stoc

科学美国人60秒 SSS Flowers Deceive Flies with Chemical Cocktail

Honeybee stings are painful. But they're also fragrant. If a beekeeper gets stung by bees, it smells like banana. Dr. Stefan D?tterl, a plant ecologist at the University of Salzburg in Austria. That banana scent, he says, is a compound called isoamyl

科学美国人60秒 SSS Pesticide Additive Could Be One Culprit in Bee Deaths

Pesticide Additive Could Be One Culprit in Bee Deaths 农药添加剂是蜜蜂死亡的一大诱因 Springtime is flower season. And that includes some 90 million almond trees in California. It's the largest pollination event in the U.S.and beekeeper

英语听力文摘 English Digest 595、恐惧闻起来像糖！

Fear Smells Like Sugar Scientists have suspected for many years that fish might give off a chemical signal to warn other fish about the presence of predators. When a fish in a school is injured, for example, the rest of the school will panic and swim

VOA常速英语2017--美国强势回应化学气体袭击——战斧导弹轰炸阿萨德空军基地

Two days after Bashar al-Assad used chemical weapons against his own people in the northern Syrian town of Khan Sheikhoun, the United States struck the airfield from which the April 4 chemical attack was launched. On the orders of President Donald Tr

2006年VOA标准英语-Saddam Hussein Thrown Out of Court Again

By Jim Randle Irbil, Iraq 25 September 2006 Saddam Hussein's stormy trial on genocide and other charges has resumed in Baghdad. The trial was in session just two hours before the former Iraqi leader was thrown out of court - again. ------- Former Ir

VOA常速英语2014--计划进一步推迟使叙利亚化学武器销毁受挫

Further Delays Hit Syria Chemical Weapons Disarmament 计划进一步推迟使叙利亚化学武器销毁受挫 LONDON The operation to remove and destroy Syrias chemical weapons continues to be delayed by security problems and bad weather. Several c

美国国家公共电台 NPR Iran's Foreign Minister: Renegotiating Nuclear Deal Would Damage U.S. Credibility

STEVE INSKEEP, HOST: Iran's foreign minister is making his case for a nuclear deal, plausibly, for the final time. Mohammad Javad Zarif is finishing a visit to the United Nations here. He arrived weeks before a deadline for President Trump to extend

美国国家公共电台 NPR NASA's Curiosity Rover Finds Chemical Building Blocks For Life On Mars

DAVID GREENE, HOST: This seems big. Scientists say for the first time they have clear evidence that the chemical building blocks of life exist on Mars. So is this the moment we can say there is life on the red planet? Well, NPR's Joe Palca says not y

美国国家公共电台 NPR Retailers Plan To Clear Deadly Paint Removers From Shelves, As EPA Delays Ban

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

英语听力文摘 English Digest 438、为什么盐会结块？

Why Salt Clump s 为什么盐会结块？ You probably noticed that sometimes the salt gets clump y . If its really humid outsidethere may even be condensation on top of the salt shaker. The reason this happens is that salt is hygroscopic . Hygroscop

VOA常速英语2008年-Iraq Approves Execution of 'Chemical Ali'

By Daniel Schearf Irbil 29 February 2008 Iraqi officials say the government has approved the death sentence for Chemical Ali, a cousin of Saddam Hussein, who is widely known for his role in poison gas attacks on the Kurds. As Daniel Schearf reports f

英语听力文摘 English Digest 426、健忘症

Amnesia 健忘症 When we remember something, the neuron s in our brains communicate with each other in a particular way. The chemical and sometimes even structural changes that occur create a pathway called a memory trace. Signals traveling along th

英语听力文摘 English Digest 348、植物大战毛毛虫

Caterpillar VS Plant 植物大战毛毛虫 If you have kids, youve probably read the children's book: The Very Hungry Caterpillar , see, at least five thousand times. If you havent had the pleasure, heres a brief plot summary. A caterpillar hatch es

英语听力文摘 English Digest 197、特氟隆为何如此滑

Why Teflon Is Slippery？ 1954年，法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想，觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上，效果一定不错

英语听力文摘 English Digest 279、米诺鱼的自杀式生存策略

For Minnows, A Suicidal Survival Strategy 北美多种小型鱼类，特别是鲤科(Cyprinidae)鱼类的总称。亦指荫鱼科(Umbridae)和鱂科(Cyprinodontidae)鱼类，minnow一词又泛指许多大型鱼类的幼鱼。北美的鲤科米诺鱼包