英语听力：探索发现 2014-06-27 BBC 地平线：陨石的真相-20
时间：2019-01-23 作者：英语课 分类：探索与发现2014年
英语课
Oh, perfect, perfect, perfect. Now we’re seeing the fireball come in, it’s brighter than the Sun and then, “Kapow”, it hits the surface. Jeez!
This whole region, downrange, would have been incinerated. It would have been incinerated just by this plasma 1, this exploding vapour plume 2 engulfing 3 everything. There would have been winds that would have been going so fast. It could pick up houses and spread them hundreds of kilometres away. This would have been Armageddon.
Experiments like this reveal several important things. One is that it’s not just the impact. It’s all that vapour that runs downrange. In fact, you can see areas here where there was so much wind it actually carved out pieces of this landscape. So what these experiments help us do? They actually allow us to witness the event, see it in real time and try to understand the processes that are going on. It’s really complex but we have to see it to understand it. So asteroid 4 impacts unleash 5 a trail of destruction far greater than suggested by the footprint of the crater 6 alone.
n.血浆，细胞质，乳清
- Keep some blood plasma back for the serious cases.留一些血浆给重病号。
- The plasma is the liquid portion of blood that is free of cells .血浆是血液的液体部分，不包含各种细胞。
n.羽毛；v.整理羽毛，骚首弄姿，用羽毛装饰
- Her hat was adorned with a plume.她帽子上饰着羽毛。
- He does not plume himself on these achievements.他并不因这些成就而自夸。
adj.吞噬的v.吞没，包住( engulf的现在分词 )
- A photographer had fused the lights,engulfing the entire house darkness. 一位摄影师把电灯的保险丝烧断了，使整栋房子陷于黑暗当中。 来自《简明英汉词典》
- A professional photographer had fused the lights,engulfing the entire house in darkness. 一位职业摄影师把保险丝烧断了使整所房子陷于黑暗当中。 来自辞典例句
n.小行星；海盘车(动物)
- Astronomers have yet to witness an asteroid impact with another planet.天文学家还没有目击过小行星撞击其它行星。
- It's very unlikely that an asteroid will crash into Earth but the danger exists.小行星撞地球的可能性很小，但这样的危险还是存在的。
vt.发泄，发出；解带子放开
- They hope to create allies to unleash against diseases,pests,and invasive species.他们希望创造出一些新群体来对付疾病、害虫和一些有侵害性的物种。
- Changing water levels now at times unleash a miasma of disease from exposed sewage.如今，大坝不时地改变水位，从暴露的污水释放出了疾病瘴气。