61. Admittedly , ensuring sustainable development will require a certain level of sacrifice and arduous efforts on the part of all people . Nonetheless , the accrued returns will both strengthen the nation and ensure a better life for all Chinese citizens .
　　誠(chéng)然，確保持續(xù)的發(fā)展需要人們做出一定程度的犧牲和辛勤努力。但是，積累的成果不僅能使國(guó)家更強(qiáng)大，而且能保證中國(guó)公民過上更美好的生活。
　　62. The rapid emergence of homes for senior citizens represents a sharp divergence from the traditional Chinese practice of maintaining the nuclear family at all costs .
　　老人療養(yǎng)院的迅速出現(xiàn)體現(xiàn)了與中國(guó)傳統(tǒng)的不惜一切代價(jià)維持核心家庭的做法的顯著分歧。
　　63. Participating in interactive experiences beneficial to all is something that no one should miss . The valuable lessons learned therefrom should not be arbitrarily dismissed , but should instead be treasured .
　　參加對(duì)所有人都有益的互動(dòng)式體驗(yàn)是任何一個(gè)人都不應(yīng)該錯(cuò)過的。從中獲得的寶貴經(jīng)驗(yàn)不應(yīng)該任意拋棄，而應(yīng)該倍加珍惜。
　　64. Abortion advocates may be correct in their assertion that the practice is a necessary tool of population control , but they seem to neglect the preciousness of human life in its earliest stages .
　　人工流產(chǎn)的提倡者認(rèn)為它是控制人口的一種必要手段。他們也許是對(duì)的，但他們可能忽略了人的生命在比較初階段的寶貴。
　　65. Some people assert that nothing is impossible . Such people should get a grip on reality and understand it’s impossible to create another Universe . In more down-to-earth terms , it’s impossible to know with any certainty whether you will live or die tomorrow .
　　一些人斷言沒有什么事是不可能的。這些人應(yīng)該把握現(xiàn)實(shí)，知道再造一個(gè)宇宙是不可能的。更現(xiàn)實(shí)的說法是不可能明確知道明天你會(huì)活著還是會(huì)死。
　　66. Two major factors contributed to devastating summer flooding along the Yangtze River and its tributaries . First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main channel .
　　兩個(gè)主要因素導(dǎo)致了夏季長(zhǎng)江及其支流的特大洪水。第一，過度砍伐引起的河流上游的侵蝕，第二，嚴(yán)重的泥沙淤積抬高了主干道的河床。
　　67. Greed and a total lack of social consciousness have been cited as major reasons for the dramatic rise corruption .
　　人們認(rèn)為貪婪和社會(huì)意識(shí)的徹底缺乏是造成腐敗急劇增加的主要原因。
　　68. There are several reasons for the marked increase in China’s crime rate—the dramatic influx of itinerant workers in urban areas ; declining social values ; and widening disparities between the haves and have-nots .
　　中國(guó)的犯罪率顯著升高有很多原因——城區(qū)大量流動(dòng)工人的涌入；社會(huì)價(jià)值的貶低以及貧富之間日益擴(kuò)大的差距。
　　69. Why are an increasing number of elderly Chinese parents living apart from their children ? One reason is the increasing upward mobility of the younger generation . Another is expanding social opportunities for the elderly . Perhaps the main reason , however , centers on dramatic changes in traditional concepts .
　　為什么越來越多的中國(guó)老人不和他們的孩子住在一起？原因之一是年輕一代的上進(jìn)心增強(qiáng)了。另一個(gè)原因是社會(huì)上老人的機(jī)會(huì)增加了。然而，主要的原因可能是傳統(tǒng)觀念發(fā)生了巨大變化。
　　70. What has sparked the increasing interest in exercise ? For one thing , people have gained a greater awareness of the need for physical fitness . For another , the constantly improving standard of living enables Chinese people to patronize the increasing number of recreational venues . The main thing perhaps centers on the healthcare and psychological benefits exercise provides .
　　什么引發(fā)了人們對(duì)鍛煉越來越濃的興趣？一方面，人們更加清楚地意識(shí)到保持身體健康的必要性。另一方面，不斷提高的生活水平使中國(guó)人能夠支付增加的娛樂支出。比較主要的可能在于鍛煉帶來的保健和心理上的好處。

　　71. Identifying the reasons for an emerging phenomenon which involves several complicated factors is far from an easy task . For example , some scientists attribute environmental deterioration to a series of natural factors , while others place the blame solely on inappropriate human behavior .
　　要找到涉及許多復(fù)雜因素的新現(xiàn)象的原因遠(yuǎn)非一件易事。例如，一些科學(xué)家把環(huán)境的惡化歸結(jié)為一些自然因素，而另一些人把責(zé)任都推在人類不適當(dāng)?shù)男袨樯稀?
　　72. One doesn’t have to look far to realize the direct correlation between smoking and cancer .
　　人們不用花費(fèi)很大力氣就能發(fā)現(xiàn)抽煙和癌癥之間的直接聯(lián)系。
　　73. The explanation for the phenomenon of the rising teenage suicide rate involves many complicated factors . Some attribute the rise to an overemphasis on early success , others point to mounting peer pressure , and still others to confusion over changing social values .
　　對(duì)上升的少年自殺率的解釋涉及很多復(fù)雜的因素。有的人把上升的原因歸結(jié)為過分強(qiáng)調(diào)少年時(shí)期的成功，有的人指出是因?yàn)椴粩嘣鲩L(zhǎng)的同伴之間的壓力，還有人認(rèn)為是對(duì)不斷變化的社會(huì)價(jià)值的迷茫造成的。
　　74. The reasons for antisocial behavior are both complicated and varied . I suggest the phenomenon results from inappropriate role models and the lack of well-defined norms of behavior . However , the main reason is quite likely the continuing degeneration of social values .
　　反社會(huì)行為的原因既復(fù)雜又多樣。我認(rèn)為這種現(xiàn)象是不恰當(dāng)?shù)慕巧�典型和缺少行為�?guī)范的很好的定義造成的。然而，主要原因很可能是不斷貶低的社會(huì)價(jià)值。
　　75. The causes of racial hatred are not readily definable . Sociologists , however , attribute them to the misguided concept of a superior race and an innate mistrust of people of color . Perhaps the main cause is quite simply ignorance .
　　種族仇恨的起因沒有現(xiàn)成的答案。然而，社會(huì)學(xué)家把原因歸結(jié)為被誤導(dǎo)的更高貴的種族的觀念以及天生的對(duì)有色人種的不信任。主要原因可能僅僅是因?yàn)闊o知。
　　76. The scourge of HIV/AIDS currently engulfing the world will quite likely be brought under control within the next few years thanks to the untiring efforts of scientists and researchers worldwide .
　　現(xiàn)在席卷世界的艾滋病的禍害很有可能由于全世界科學(xué)家和研究人員的不懈努力在未來幾年內(nèi)得到控制。
　　77. The incidence rate of cancer mainly stems from several factors , including inappropriate diets , poor healthcare practices and the lack of early detection . Continuing medical advances and rising awareness do , however , offer promising hope for the future .
　　癌癥的發(fā)病率主要由以下諸多因素引起，包括不適當(dāng)?shù)娘嬍�、不好的保健�?xí)慣以及沒有及早發(fā)現(xiàn)。然而，醫(yī)學(xué)的不斷進(jìn)步和對(duì)此不斷增強(qiáng)的關(guān)注給未來帶來了很大的希望。
　　78. Increased urban pollution levels and the mounting death toll from motor vehicles accidents can mainly be attributed to the glut of automobiles appearing on city roads in recent years . Detrimental factors will quite likely outweigh the benefits of rising automobile usage .
　　城市人口的增長(zhǎng)和車禍中死亡率的增加主要是由于近年內(nèi)充斥城市道路的汽車。汽車使用量的增加帶來的有害因素很有可能超過它的好處。
　　79. The rising divorce rate in China can , at least in part , be attributed to spousal incompatibility , disparities in education levels , changing social attitudes and the increasing upward mobility of the younger generation .
　　中國(guó)上升的離婚率可以，至少部分可以歸結(jié)為婚姻的不和諧，受教育水平的差異，變化的社會(huì)看法以及年輕一代不斷增強(qiáng)的上進(jìn)心。
　　80. State-owned enterprises are not only failing because of inefficient management , but also because of their inability to awitch operational modes from the former planned economy to the new market economy .
　　國(guó)有企業(yè)失敗不僅由于低效的管理，也因?yàn)樗麄儾荒軐?shí)現(xiàn)從以前的計(jì)劃經(jīng)濟(jì)到新的市場(chǎng)經(jīng)濟(jì)的運(yùn)作模式的轉(zhuǎn)換。