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Directions: For this part, you are allowed 30 minutes to write an essay commenting on the remark "Necessity is the mother of invention." You can cite examples to illustrate your point. You should write at least 120 words but no more than 180 words.
  • 参考答案:Necessity Is the Mother of Invention
    A saying goes that necessity is the mother of invention and I cannot agree more. Every significant invention in the world, from the ancient time to the modern period, is the result of needs. The reasons why I say so are as follows.
    First and foremost, needs are the primary impetus behind any invention. For example, paper, one of the four great inventions of ancient China, was invented to meet the growing demands of materials for writing upon. Besides, the inventions that satisfy people's needs are full of vitality. Being created for fun, an invention may cause novelty and curiosity for a period, but it cannot last long and people will forget it soon. What's more, needs make inventions constantly improved and upgraded. We can learn it from the evolution of cell phones and computers, both of which are ceaselessly upgraded with the development of modern society.
    In short, necessity inspires men's creativity and encourages continuous improvement. Inventions with practical use should be based on practical necessity.
  • 系统解析:
    1.首段引出名言,提出论点:世界上任何一个重大发明都是需求的结果。
    2.中间段从三个方面论述发明是需求的结果。
    3.末段总结全文,提出有实际价值的发明应该建立在实际需求基础之上。
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