BBC新闻100篇 News Item 65-英语听力

[00:00.00]Scientists say they can now definitively back, the long held theory
科学家说他们现在可以确定 [00:04.44]that a huge asteroid striking the earth some 65 million years ago
恐龙灭绝是因为 [00:08.41]was responsible for wiping out the dinosaurs
6500万年前一颗小行星撞上了地球 [00:10.90]and more than half of all animal species on the planet.
并灭绝了其他超过一半的物种 [00:13.54]The scientists finally discounted an alternative theory
科学家最终筛检处一个可能的理论 [00:16.90]that volcanic eruptions caused the dinosaur's demise.
那就是火山喷发导致了恐龙的灭绝 [00:20.01]Our science correspondent Pallab Ghosh reports.
我们的新闻记者Pallab Ghosh报道： [00:22.85]The popular conception is that dinosaur's reign supreme
“最热门的概念是恐龙一直主宰者地球 [00:27.12]until they were suddenly eradicated from the face of the planet.
直到它们突然从地球上被灭绝了 [00:31.25]The theory goes that a giant asteroid crashed into the earth,
这个理论是说一颗巨大的小行星撞上了地球 [00:34.86]wiping out half of all life on earth.
消灭了一半的生物 [00:37.61]Some scientists though say that those evidences that dinosaur survived the asteroid impact
有些科学家有些证据表明恐龙在小行星的撞击下生存了下来 [00:42.65]and became extinct some 300,000 years later.
慢慢地在300000年后灭绝了 [00:46.01]But a new analysis of all the available research
但通过对一个研究的分析 [00:48.80]has backed the view that it was a giant asteroid that wiped out the dinosaurs.
现在普遍认为还是小行星灭绝了恐龙