【答案解析】Books contain the history of our race, the discoveries we have made, the accumulated knowledge and experience of ages; they picture' for us the marvels and beauties of nature, help us in our difficulties, comfort us in sorrow and in suffering, change hours of weariness into moments of delight. [题目精解] 注意此段短文翻译中排比句型的翻译，并注意句子之间的连贯性。 本段翻译时要注意短语“当我们身处困境时”，“当我们蒙难悲伤时”，“当我们困倦疲惫时”译成汉语时，要根据汉语的行文习惯，分别译为“in our difficulties”，“in sorrow and in suffering”，“hours of weariness”，采用增词法翻译，要将短语译为句子。同时，要采用排比修辞格来翻译。