听新闻，学英语 - 类地行星新发现，外星生命或得见！

Newly discovered network of planets could harbor water and life, scientists say Scientists have discovered a remarkable cluster of planets resembling the core of our own solar system, but better: seven Earth-size worlds, each potentially capable of hosting liquid water and therefore life, in orbit around a nearby star. cluster /&`&klʌstə/ n.群，组 -六级 resemble /rɪ&`&zemb(ə)l/ v.相似 -四级 Preliminary data suggest all seven planets some 40 light-years from our sun are rocky, which would make them more similar to Earth than, say, Jupiter, a huge ball of gas. Rocky planets seem a better bet than gaseous worlds for offering sanctuary to life as we understand it. preliminary /prɪ&`&lɪmɪn(ə)rɪ/ a. 初步的，预备的，开端的 -四级 gaseous /&`&gæsɪəs/  n. 气态的，四气体的 -四级 sanctuary /‘sæŋ(k)tjʊərɪ/ n. 圣地，庇护 Never before have astronomers found a star circled by so many Earth-like planets with relatively pleasant climates. Better yet, the Hubble Space Telescope and other observatories peering at these new found worlds should be able to pick out chemical signals of any living organisms. Oxygen, for example, is a product of plants, while methane is made by certain microbes. peer /pɪə/ v. 凝视，窥看 -六级 organism /&`&ɔːg(ə)nɪz(ə)m/ n. 有机物，有机体 -四级 microbe /‘maɪkrəʊb/ n. 细菌，微生物 -雅思