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：

★ 2016届高考英语二轮专题总复习精选综合能力专练：阅读理解5

★ 2016届高考英语一轮复习(外研版)考点规范训练：必修1 Module 3　My First Ride on a Train

★ 2017届高考英语一轮基础知识复习：Unit 2 The United Kingdom（新人教版必修5）

★ 2017届高考英语一轮复习跟踪检测：必修1 Module 4 A Social Survey-My Neighbourhood（外研版）

★ 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届高三英语一轮单元检测：必修1 Unit3《 Travel journal》

★ 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）

★ 【创新设计】2017高考英语二轮复习限时测试：15（含解析）

★ 2016届高三英语二轮复习课时训练：10 阅读理解＋完形填空＋语法填空＋书面表达

★ 2017高三英语二轮复习 江苏专用 完型填空+阅读理解33