高考英语一轮复习BookUnitAstronomythescienceofthestars.pptVIP

prevent from leaving energy protect his child from over on on watch out for three times as many as Now that prevent from in time watch over at a time The production now is three times what it was ten years ago. Now that everyone is here，let’s begin our class. Since you have come，why not just stay? B D A D A 返回 astronomer astronomy billion violent violence atmosphere dinosaur thus satellite climate spaceship lessen religion religious theory globe fundamental multiply oxygen gravity extinct crash development developed up cheers that out birth lay from stop out out hang out turn on mind how it came into being As he wasn’t ready make it a rule to speak English there , too to see as bright as four times as large as B Our teacher of geography held a class meeting in order to encourage us to study astronomy. He gave us some useful advice， saying that we depend on it that we defeat the difficulties by ourselves. Meantime，the geography monitor also made a speech，which cheered us up. Every one of us made up our minds to study harder. As long as we get the hang of the ways of learning astronomy，we can learn it well. puzzling puzzled puzzlement in puzzling about/over puzzled puzzle puzzlement puzzling massive of masses mass in the mass The mass of down one’s life out laid off laid some money aside lying lied laid laid lie massive puzzling masses laid puzzle C B D C B on one ahead take at times in no time prevention from doing sth.