Lesson22-1 Knowledge and progress 知识和进步
Why does the idea of progress loom so large in the modern world? Surely because progress of a particular kind is actually taking place around us and is becoming more and more manifest. Although mankind has undergone no general improvement in intelligence or morality, it has made extraordinary progress in the accumulation of knowledge. Knowledge began to increase as soon as the thoughts of one individual could be communicated to another by means of speech. With the invention of writing, a great advance was made, for knowledge could then be not only communicated but also stored. Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing. All this was comparatively slow until, with the coming of science, the tempo was suddenly raised．
loom /luːm/ 逼近;赫然耸现;显得突出;
manifest /ˈmænɪfest/ 明显的，表明;显示;显现;
mankind /mænˈkaɪnd/人类
undergo /ˌʌndərˈɡoʊ/ 经历;经受
morality /məˈræləti/ 道德;道义;道德规范;
in its turn 该由。。。来做。。。
compound / kəmˈpaʊnd/ 混合物;复合物;复合词
a kind of compound interest law 一种复利法则 滚雪球
enhance /ɪnˈhæns/ 增强;提高;增进
tempo /ˈtempoʊ/ (运动或活动的)速度\速率、节奏
comparative /kəmˈpærətɪv/ 比较的;相比的;相对的;
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