新编英语教程5unit4教学课件.ppt

Unit FourTEXT I The Invisible Poor III. Library Work 1. Broadly speaking, the middle class is the social group between the upper or the wealthy and working classes, including professional and business workers and their families. The middle class is sometimes divided into lower middle III. Library Work and upper middle classes --- a division based on occupational and educational differences. Since World War II, the middle class has been the largest class in the United States, where the middle class participate more in political and voluntary organizations than do the III. Library Work subordinate classes, that is, the lowest paid wage earners and the jobless poor. The middle class in the U.S. also has a higher rate of religious participation than any other class. 2. Dictionary definitions of slum and ghetto: Slum --- a thickly populated, squalid part of a city inhabited by the poorest people III. Library Work Ghetto --- In former times, in most European countries, a section of a city inhabited by Jews. In the U.S. today, a thickly populated slum area in a city inhabited predominantly by a minority group. In many cities in the U.S., particularly in the East and the Middle West, slums developed where unemployment led to great suffering and over-crowdedness; moreover, pauperism and crime are widespread. III. Library Work In the U.S., ghetto is a term used to describe segregated residential areas in the northern U.S. They are typically overcrowded, and have poor housing and high unemployment. They are largely a result of segregation. 3. The general purpose of unions has been to protect and advance the well-being of workers. Some participants in and observers of the U.S. labor movement have viewed unions as institutions with the potential to establish industrial democracy and socialism. Until the III. Library Work 1930s, U.S. labor unions suffered severe legal disadvantages. Before 1842 strikes were often prohibited by the courts. In 1932 anti