在PTE中,无论是Summarise Spoken Text 还是 Re-tell Lecture的考题大都是从真实的讲座或者演讲中截取的,中间经常经常夹杂很多不同的环境音.很多同学都反映有时未必是听不懂,而是听不到. 鉴于此,墨尔本文波雅思PTE专门为大家总结了真实讲座的PTE练习音频,相比新闻音频来说,整体更加接近PTE考试的真题,内容方面,我们也会为大家提供考试中存在的近似题,最近我们会持续更新,敬请期待!
There’s another guy named Verrier who was a mathematician and did celestial mechanics and he basically made celestial mechanics, a success field who is respected by doing the following thing. He basically used the formulas of Kepler and Newton. He calculated the orbit of Uranus. And found there were discrepancies in that orbit from those theories, those formulas. And he predicted then there was because there was a missing planet, Neptune, which is the name he gave it, but it was missing. And he predicted them where it would be, because otherwise it wouldn’t fix the problem, so he predicted where it would be. The story goes then he sent a letter to an astronomer in Germany in Berlin and it took five days for the letter to get there. He took into account of those five days, he knew how long it would take. The astronomer got the letter, this is the story at least. The astronomy got the letter and he then looked at the sky and the place that was predicted by Verrier, and within one degree he found Neptune. He went on, he is the guy that saw that Mercury had an orbit that wasn’t quite right, so we tried the same idea on Mercury, so whether the Newton theory is right or not. He said, “ok, it’s gonna be just like Neptune and Uranus and there is something missing.” He called that Vulcan. And he said it would either be a small planet or maybe a series of small objects. They were between Mercury and the Sun. He predicted what they were and gave them a name. And they’ve never been found. They’ve been looked for even by NASA in recent years, but they’ve never been seen. Of course they were reinvented for Star Trek.
