11.历史上，人口过剩的问题从来没有比现在更加突出。

　　Never before in history has the issue ofoverpopulationbeen more evident than now.

　　12.越来越多的人开始意识到财富不是幸福的唯一先决条件。

　　A growing number of people are beginning to realize thatwealthis not the sole prerequisite forhappiness.

　　13.尽管科学技术取得了非凡的进步，但是在保证进步成果使尽可能多的人受益这方面还存在一些问题。

　　In spite ofthe extraordinary progress made in science and technology,problems remain in terms ofguaranteeing that achievements benefit the greatest number of people.

　　14.一位著名的思想家曾经写道：“对人类最大的威胁是人类自身!”如果事实确实如此，那么，现状应该促使我们对我们未来的生存进行思索了。

　　A famous thinker once wrote that “the greatest threat to mankind is mankind itself!”If this is indeed the case, thenthe current situation should make us ponder our future existence.

　　15.对人们行为的多年观察使我能够得出这样的结论：平庸和成功的主要区别仅仅在于相关的个人。成功的个人不断寻求进步，而他们比较懒惰的同时代人仅仅满足于现状。

　　Years ofobserving human behaviorhas enabled me to conclude that the major difference betweenmediocrityandsuccesslies solely withthe individual concerned. Successful individuals consistently seek advancement,whiletheir less industrious contemporaries are merely content with the status quo.

　　16.传统的思维方式有了显著的变化。舆论发生了剧变，人们表现出更开放的思想以及决定他们自己命运的强烈愿望。

　　Traditional ways of thinking have changed dramatically. The pendulum has swungand people are exhibiting greater open-mindedness and a burning desire to determine their own destiny.

　　17.近年来出现了对社会有害的拜金主义倾向。最近的一项调查表明，X%的调查对象把致富作为他们的首选，相比之下，就在几年前，只有X%的人这样想。为什么人们没能意识到财富不一定带来幸福呢?

　　There has beenundesirabletrend in recent years towardsthe worship of money.A recent survey showed that X percent of respondents rankedgetting richas their top priority, compared to X percent only a few years ago. Why do people fail to realize thatwealth does not necessarily bring happiness?

　　18.几个月前，我的一个朋友死于一场与酒后驾车有关的悲惨车祸。这件事情一点儿也不罕见，事实上是数以千计的案件的典型，这些案件与在酒精作用下开车的人有关。

　　Some months ago, a friend of mine was killed in a tragic automobile accident involving a drunk driver.The incident was far from rare, and was in fact typical of thousands of casesinvolving people driving under the influence of alcohol.

　　19.简而言之，我们必须勤奋工作，为了下一代把世界变成更美好的地方。我们不应该坚持对环境有害的追求。

　　In short, we must work diligently to make the world a better place for coming generations. We must not persist in pursuits harmful to the environment.

　　20.我们必须避免过分放纵和铺张浪费。相反，我们应该继续发扬节俭的优点以守护我们新获得的繁荣。

　　We must avoidoverindulgence and conspicuous consumption.We must insteadcontinue to recognize the benefits of thrift in order to protect our newfound prosperity.