Unit 1 Business Unit 2 Marketing. Unit 3 IntemationalTrade Unit 4 Etiquette Unit 5 Banking Unit 6 Stocks Unit 7 Convention and Exhibition Unit 8 Insurance Unit 9 Environment Unit 10 Library Unit 11 Tourism Unit 12 Guiding Unit 13 VirtualCommunity Unit 14 TeachersandStudents Unit 15 WorkingTbroughCollege Unit 16 TheLastLecture Extensive Listening