Most people usually traveled by ship and train which are driven by steam engine. It played an important part in many kinds of vehicles several scores of years ago. Who invented steam engine and what units could be used to measure the power of engine?
The word “horse-power” was first used two hundred years ago. James Watt from a worker‟s family made the world first widely used steam engine. At first, he couldn‟t tell people how powerful it was, because there were no units at that time. Watt decided to find out how much work one strong horse could do in one minute. He named that unit one horse-power. In this way he could measure the work of his steam engine.
He discovered that a horse could lift a 3300-pound weight 10 feet into the air in one minute. His engine could lift a 3300-pound weight 100 feet in one minute. Because his engine did ten times as much work as the horse, Watt called it a ten horse-power engine.
31. The main idea of the passage is __B_.
A. James Watt invented the steam engine
B. James Watt first used horse-power as a unit of measure
C. how much power does a horse have
D. why Watt‟s engine is called a ten horse-power engine
32. The story says that Watt made the first __D__.
A. engine B. horse-power engine C. useful engine D. widely used steam engine
【阅读理解:Travel】相关文章:
★ 2017届高考英语一轮复习阅读理解解析版汇编:11(含解析)
★ 2016届广东省天河区高考英语二轮语法复习精讲精练:阅读理解14
★ 2017届《名师A计划》高考英语新人教版一轮复习配套练习:必修1 Unit 3《Travel journal》(含解析)
★ 2016届高考英语二轮复习阅读理解一百四十集选练:(64)
★ 2017届重庆市高考英语一轮复习阅读理解选编精练:32(含解析)
★ 2017高三英语二轮复习 江苏专用 完型填空+阅读理解25
★ 【创新设计】2017高考英语二轮复习限时测试:15(含解析)
★ 2017届四川省青川县高考英语一轮复习阅读理解基础选练:2(含答案)
★ 2016届高考英语二轮复习分项训练(通用版): 第1部分 专题1阅读理解1 专题针对训练(含答案)
最新
2016-10-27
2016-10-27
2016-09-22
2016-09-21
2016-09-21
2016-09-21