99.8.31//83.annual astronomy society meeting 84.establish 85.existence 86.orbit 87.locate 88.billion 89.dim 90.candle
91.indirect method 92.subtle distortion 93.rock back and forth 94.spots of light(pinpoint of light) 95.break down
96.chemical composition 97.telltale signs of life 98.ozone molecules
99.10.31//99.far-fetched 100.new theory 101.comet 102.satellite 103.detect 104.collide(collision) 105.atmosphere 106.cosmic dust 107.bum up 108.break up(disintegrate) 109.fill up 110.traditional view 111.volcano 112.originate 113.volcanic fume (steam)
2000.1.43//114.put forward a new theory(argument) 115.observation
116.heavenly body 117.eclipse 118.disk 119.shadow 120.spherical 121.perfect circle 122.ellipse 123.North Star(Polaris) 124.circumference 125.stretch out 126.position 127.stadiom
杜伟《TOEFL听力常考段落词汇分类》天文学astronomy, astronomer, astronomical object,illusive object, cosmos, space, solar system,Brown Dwarf, gaseous bodies, planet, massive, ignite, star, heaven, celestial, faint, universe, comet, meteor, obserbatory, telescope, image, remote, feeble, origin, gravitational force, molten, Mars