1)"Everybarrelofoil,tonofcoal,andkilogramofuranium

　　consumedrepresentsmultiplesourcesofenvironmentaldisruption."----是个陈述句:"那些消耗掉的每桶燃油,大量的煤炭和许多化学铀成为复合的环境污染源."本句是个复合主语,"Everybarrelofoil,tonofcoal,andkilogramofuranium"

　　2)Landispreemptedanddefacedinminingand

　　theestablishmentoftransportationroutes.是个被动句,也是陈述事实的,意思是:"陆地被采矿和交通运输线的建立所占用与损坏."

　　3)Therefiningofpetroleumandtheconsumptionoffuelcauseseriousairpollutionandthewasteheatproducedhasthepotentialtodisruptecosystemsoralterworldclimat.--陈述句,意思是"石油冶炼,燃料使用引起的严重的空气污染及废气,热量对生态系统和全球气候有潜在的破坏."本句主语较复杂:Therefiningofpetroleumandtheconsumptionoffuelcauseseriousairpollutionandthewasteheatproduced是主语.

　　4)Isitnecessarytopollutetheenvironmentsoseverely?

　　是个一般疑问句:对环境造成这么严重的污染是必须的吗?是个itis...结构,示强调.

　　5)Woulditbepossibletopreservetheamenitiesofcivilizationandsimultaneouslyimprovethequalityandcleanlinessoftheplanet?----wouldbe结构,示客气的反问,

　　"保护文明社会那些美好的东西同时改善我们行星的清洁质量是可能的吗?"

　　6)Theanswerisdefinitelyyes,forhthereareagreatmanywaystoreducepollutionwithoutunduesacrificeofpersonalconveniencesorconforts.

　　--答案是肯定的,有许多不必牺牲人体舒适度的方法来降低污染.(本句原文有错别字--"conforts"--应为comfort--舒适之义吧)"withoutunduesacrificeofpersonalconveniencesorconforts."是个后置定语.修饰"way"...