《英语国家社会与文化入门》课程PPT教学课件（下册）The Society and Culture of Major English-Speaking Countries An Introduction Book 2 Unit 05 American Economy

Mass production of consumer goods helped to revolutionize the ways in which Americans lived Refrigerator in the 1920s

Mass production of consumer goods helped to revolutionize the ways in which Americans lived. Refrigerator in the 1920s

3.Application of new technologies to industries 。The1 9th century --textile industry switch to steam power --new inventions stimulated economic activity (eg.farm machinery,sewing machines,the telegraph,railroads, the telephone,the camera etc.) Bell and the invention of telephone

3. Application of new technologies to industries • The 19th century -- textile industry switch to steam power -- new inventions stimulated economic activity (eg. farm machinery, sewing machines, the telegraph, railroads, the telephone, the camera etc.) Bell and the invention of telephone