16. There is a growing worldwide awareness of the need for strengthened environmental protection .
世界上越來越多的人認識到加強環(huán)境保護的必要性。
17. There has been a dramatic increase in the spread of HIV/AIDS in recent years , with a new study projecting that the dreaded disease will affect over 30 million people worldwide by the year 2005 .
近年來，艾滋病蔓延的幅度進一步擴大，一項新的研究預測，到2005年，世界上有超過三千萬人將感染這一可怕的疾病。
18. Working with the disabled cannot help but leave one impressed with their indefatigable desire .
與殘疾人一起工作使一個人不得不對他們堅持不懈的渴望印象深刻。
19. Perhaps no issues are more controversial than euthanasia and abortion , both of which involve taking the life of a human being .
也許沒有問題比安樂死和人工流產(chǎn)更有爭議性，它們都涉及結束一個人的生命。
20. Never before in history has the issue of overpopulation been more evident than now .
歷，人口過剩的問題從來沒有比現(xiàn)在更加突出。
世界上越來越多的人認識到加強環(huán)境保護的必要性。
17. There has been a dramatic increase in the spread of HIV/AIDS in recent years , with a new study projecting that the dreaded disease will affect over 30 million people worldwide by the year 2005 .
近年來，艾滋病蔓延的幅度進一步擴大，一項新的研究預測，到2005年，世界上有超過三千萬人將感染這一可怕的疾病。
18. Working with the disabled cannot help but leave one impressed with their indefatigable desire .
與殘疾人一起工作使一個人不得不對他們堅持不懈的渴望印象深刻。
19. Perhaps no issues are more controversial than euthanasia and abortion , both of which involve taking the life of a human being .
也許沒有問題比安樂死和人工流產(chǎn)更有爭議性，它們都涉及結束一個人的生命。
20. Never before in history has the issue of overpopulation been more evident than now .
歷，人口過剩的問題從來沒有比現(xiàn)在更加突出。