PTE听力口语练习-科学60秒-Earth-Like World

PTE考生目前最大的问题之一就是练习题缺乏。除了有限的基本官方书(PLUS,Testbuilder, OG)之外,就没有题了。很多英语基础不是很扎实的同学很难找到练习材料。墨尔本文波雅思PTE培训学校专门为墨尔本,悉尼PTE考生准备了适合PTE听力阅读练习的科学60秒。各位PTE同学可以练习PTE听力中的summarise spoken text和PTE口语中的retell lecture,PTE听力口语-科学60秒-Frosty Moss练习记笔记技巧和复述。废话少说,下面开始:

Earth-Like World May Be Just 13 Light-Years Away


60秒科学节目(SSS)是科学美国人网站的一套广播栏目,英文名称:Scientific American – 60 Second Science,节目内容以科学报道为主,节目仅一分钟的时间,主要对当今的科学技术新发展作以简明、通俗的介绍,对于科学的发展如何影响人们的生活环境、健康状况及科学技术,提供了大量简明易懂的阐释。

Astronomers have searched far and wide for planets that are the right size and in the right place to support life. Well, maybe they should have set their sights a little closer to home. Because a new study suggests that there may be Earth-like planets just 13 light-years away. The results will be published in The Astrophysical Journal. [Courtney D. Dressing and David Charbonneau, The Occurrence Rate of Small Planets around Small Stars]

To look for worlds that are about the same size as our own, scientists focused their attention, and the planet-seeking Kepler telescope, on red dwarves. These stars are about a third the size of our sun, which is a plus for detecting planets, because an Earth-size body would block more of a smaller star’s light, making it easier to spot.

Looking at the red dwarves that have already been ‘scoped out by Kepler, the scientists discovered that 60 percent of them have planets smaller than Neptune, and 6 percent have planets as warm and cozy as our beloved Earth.

Now, three out of every four stars in our galaxy is a red dwarf. So if some four billion stars in our neighborhood alone shine on an Earth-like planet, our extrasolar backyard may turn be a pretty lively place.

—Karen Hopkin


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