成人学位英语书阅读部分英译汉.doc

1 as people continre to grow and age ,our body systems continue to change,at a certain stage in your life,your body system will begin to be weaker ,your joints may become stiff it may become more difficult for you to see and hear.the slow change of againg carses our bodies to lose some of their ability to recover from disease and injury .in order to live longer ,we have always tried to slow or stop this process that leads us to ward the end of our lives many factors contribute to your health a well -balanced diet plays an important role .the amount and type of exercises you get is another factor .your living environment and the amount of presure you are under is still another .but scientists studying aging want to know:why do people get old?they hope that by examining the aging process on the level of cells,medical science may be able to make life longer 随着人们继续增长和年龄，我们的身体系统的不断变化，在你生活中的某些阶段，你的身体系统将开始疲软，你的关节可能变得僵硬，它可能会变得更加困难，给你看和hear.失去一些疾病和损伤恢复的能力为了活得更长，我们一直试图以减缓或阻止这一进程，使我们病房我们的生活结束 许多因素有助于您的健康，良好的均衡饮食中起着重要作用。你的练习的数量和类型，另一个因素是您的生活环境和量的压力，您是在仍然是另一回事，但研究老化的科学家们想知道：人为什么会老的，他们希望通过研究在细胞水平的衰老过程， 医学科学能够使寿命更长 2 for more than 40 years ,earth has been sending out distess signals .at first,they were suble ,then the signs were unmistakable.finally ,as the new millennium drew near,it was obvious that earths pain had become humanspain .the collapse of the north atlantic fishery put 30,000 canadians out of work and ruined the economies of 700 communities .two yiars ago,the floods in china killed 3,600 people and left 14 million homeless.population pressures and overcrowding made the situation even worse and how have we responded to four decades of ever louder distress signals?weve stged a procession of earth days ,formed green parties ,passed environmental laws.all the while the decline of earth ecosystems has continued worsening what will it take for rs to get serious abort saving oru environment ?pne crucial step is a true accountng of the state of the planer ,a thorough