前言 第一部分 教程同步輔導(dǎo) UNIT 1 Schools and Education UNIT 2 Work and Life UNIT 3 Traffic and Accidents UNIT 4 Humanity and Environment UNIT 5 Social Problems UNIT 6 Science.Technology and Progress UNIT 7 Foreign Relations UNIT 8 Sports UNIT 9 Cities and Countryside UNIT 10 Culture and History UNIT 11 Travel and Sightseeing UNIT 12 Entertainment and Mass Media UNIT 13 Business and Negotiations UNIT 14 Trade and Investment UNIT 15 Economy and Development UNIT 16 Foreign Relations