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(guò)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(lái)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(lái)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(lè)支出。最主要的可能在于鍛煉帶來(lái)的保健和心理上的好處。
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(guò)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(lái)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(lái)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(lè)支出。最主要的可能在于鍛煉帶來(lái)的保健和心理上的好處。