2. 外语
  3. Why does the idea of progress loom so large in the modern world? Surely because progress of a particular kind is actually【C1】___

Why does the idea of progress loom so large in the modern world? Surely because progress of a particular kind is actually【C1】___

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问题    Why does the idea of progress loom so large in the modern world? Surely because progress of a particular kind is actually【C1】______place around us and is becoming【C2】______manifest.
   【C3】______mankind has undergone no general improvement in intelligence or morality, it has made【C4】______progress in the accumulation of knowledge. Knowledge began【C5】______as soon as the thoughts of one individual could be communicated【C6】______another by【C7】______of speech.
   【C8】______the invention of writing, a great advance was made, for knowledge could then be not only communicated but also【C9】______Libraries made education【C10】______, and education in its turn added【C11】______libraries: the growth of knowledge followed a kind of compound interest law,【C12】______was greatly enhanced by the invention of【C13】______All this was comparatively slow until, with the coming of science, the tempo (速率)was suddenly【C14】______Then knowledge began to be accumulated according to a systematic plan. The trickle became a stream: the stream has now【C15】______a torrent. Moreover,【C16】______soon as new knowledge is acquired, it is now turned【C17】______practical account. What is called modern civilization is not the result of a【C18】______development of all men’ s nature,【C19】______of accumulated knowledge applied【C20】______practical life.
【C15】
选项 A、became
B、becoming
C、become
D、to become
答案C
解析 句中时态为现在完成时，所以要用become的过去分词become。故选C。
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