Lily的Scalers Talk第八轮新概念朗读持续力训练Da

L55-1:From the earth: Greetings

Recent developments in astronomy have made it possible to detect planets in our own Milky Way and in other galaxies. This is a major achievement because, in relative terms, planets are very small and do not emit light. Finding planets is proving hard enough, but finding life on them will prove infinitely more difficult. The first question to answer is whether a planet can actually support life. In our own solar system, for example, Venus is far too hot and Mars is far too cold to support life. Only the Earth provides ideal conditions, and even here it has taken more than 4 billion years for plant and animal life to evolve. 

Whether a planet can support life depends on the size and brightness of its star, that is its 'sun'. Imagine a star up to 20 times larger, brighter and hotter than our own sun. A planet would have to be a very long way from it to be capable of supporting life.

astronomy /əˈstrɑːnəmi/ 天文学

detect /dɪˈtekt/ 发现;查明;侦察出

Milky Way  银河

galaxy /ˈɡæləksi/ 银河系;银河;星系;

relative /ˈrelətɪv/ 相对的;相比较而言的;         relative term    相关名词;相对术语;

emit /iˈmɪt/ 发出;射出

infinitely /ˈɪnfɪnətli/ 非常;极其;无限地、无穷地

solar  /ˈsoʊlər/ 太阳系的

Venus  金星

Mars  火星

up to  直到

times larger   几倍大

又是专注学习的一个上午，很好，继续努力。