Unit 1 The Key to Success Is Education Online Libraries: Great News for Adult Students Intelligence Reading
Unit 2 Be the Most Popular College Freshman The Benefits of Living on Campus Loneliness... Building Relationships On Libraries, Bookshops and Netbars
Unit 3 Western European Wedding Traditions United States Tipping Etiquette Thanksgiving Easter in the U.K.
Unit 4 The American Revolution The Tragic Event Gold！ Thousands Went to Western Canada to Find It Industrial Revolution
Unit 5 Recession Brings New Attention to Domestic Violence Life in Somalia's Pirate Town Growing Drug Violence Shakes Mexico, Threatens to Spill Into U. S From Sydney to San Francisco: Lights Dim in Earth Hour
Unit 6 The Mystery of College Costs Hello, Girls World's Aging Population Challenges Societies Oil Prices Collapse on Falling Demand
Unit 7 Greener Diet Bringing Fish Back up to Size Farms Begin to Grow in Cities Reading a Mind's Memories
Unit 8 Your Amazing Brain The Secret Language of Dolphins Alternative Fuel――Is Green the New Black？ Renewable Energy Is Popular, but Coal Is Still King
Unit 9 Barack Obama Helen Keller David Beckham Bill Gates
Unit 10 How to Benefit From Walking Laid off Workers: Less Stressed Than Those still Employed？ The Charm of Perfume Why Are so Many People Getting Divorced？ Key to Comprehension Exercises
摘要
he Industrial Revolution began in Great Britain in the middle of the 18th century,and spread to Europe and America by the early 19th century. New ideas and inventionswere also taken up in mining, the working of metals, and in the transportation of goods. The most important new invention of the industrial revolution was the steam engine.Early steam engines were used in mines to pump out water and pump in air. This allowedthem to go deeper into the earth. The steam engine, invented by James Watt around 1776was used to power the factories and pump out the deeper mines. It was also used inrailway engines. The heat from burning coal became the main source of power. Some historians see the period called the Industrial Revolution as finishing about1820, but they agree this was only the start of change in the way we make things, whichcontinues right up to the present time.
