B.More money and less time were spent in producing goods.
C.Manufactured goods decreased a lot because of mass production.
D.The invention of the heat engine resulted in the invention of electricity.
4.Which of the following can be inferred from the passage?()
A.The animal-powered transportation was slow but comfortable.
B.The heat engine is the greatest invention ever in the history of industry.
C.The car is a means of personal transportation that is based on the heat engine.
D.Before the invention of the heat engine,the animal was the only means of transportation.
语篇解读:本文讲述了一项重要发明“热力发动机”的重要性和为人类所做出的贡献。
答案及剖析:1.C 主旨大意题。由全文内容尤其是最后一段的In conclusion,heat engines proved to be one of the most important inventions...可知,本文主要是关于热力发动机自发明以来在很多方面所起的重要作用,故选C项。
2.A 词义猜测题。由第一段关于热力发动机的定义...the heat engine is a device that transforms heat energy into other forms of energy,such as mechanical and electrical energy可知,热力发动机就是把热能转化成如机械能和电能的一种设备,故选A项。
3.A 细节理解题。由第二段的Scientists developed machines,based on heat engines,which could increase the amount of goods produced,and at the same time,decrease the amount of time and money consumed...可知,机器的使用提高了产量,减少了生产时间和劳动成本,故A项正确。其他三项与文章内容不符。
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