Unit One Overview���� Section l Background Section 2 Business Letters Introduction Section 3 Introduction to the Course Section 4 Features of Business Letters Section 5 Business Letters Categories Unit Two Basic Knowledge of Business Letters Writing�̄��ź��������A Section 1 Introduction Section 2 Purposes and Importance of Business Letters Section 3 How To Create Effective Business Letters Section 4 8 Cs of Business Letters Section 5 Tone of Business Letters Writing Section 6 Preparation Before Writing Section 7 Rules of Good Writing Unit Three Structures and Styles of Business Letters�̄��ź��ĽY���c��ʽ Section 1 Introduction Section 2 Structures of Business Letters Section 3 Principal Parts of Business Letters Section 4 Optional Elements of Business Letters Section 5 Styles of Business Letters Section 6 Spacing��Margin and Envelop Addressing Unit Four General Tips for Modern Business Writing �F���̄Ռ������� Section 1 General Tips Section 2 Grammar Focus Unit Five Establishing Business Relations �����Q���Pϵ Section 1 Introduction Section 2 Examples of Establishing Business Relations Letters Unit Six Inquiry and Quotation ԃ�P�c��P Section 1 Introduction Section 2 Examples of Inquiry and Replies Section 3 Examples of Quotation and Replies Unit Seven Counter Offer,Firm Offer and Non-Firm Offer ߀�P�����P�c̓�P Section 1 Introduction Section 2 Examples of Counter Offer Section 3 Examples of Firm Offer Section 4 Examples of Non-Firm Offer Unit Eight Orders and Acknowledgements ӆ���c���� Section 1 Introduction Section 2 Examples of Orders Section 3 Examples of Acknowledgements Section 4 Different Types of Orders and Replies Unit Nine Payment Option ֧����ʽ�x�� Section l Introduction Section 2 Examples of Letter of Credit Unit Ten Insurance ���U Section 1 Introduction Section 2 Examples of Insurance Letters Unit Eleven Packing and Shipping ���b�c�b�\ Section 1 Introduction Section 2 Examples of Packing Letters Unit Twelve Complaints and Claims ���V�c���r Section 1 Introduction Section 2 Examples of Complaints and Claims Unit Thirteen Agency ���� Section 1 Introduction Section 2 Examples of Agent Letters Unit Fourteen Contracts and Agreements ��ͬ�c�f�h Section 1 Introduction Section 2 Example of a Contract Section 3 Examples of Agreements Unit Fifteen Invitation for Bids and Advertisements �И˺͏V�� Section 1 Introduction Section 2 Examples of Invitation for Bids Section 3 Examples of Advertisements ���� ����1 ���Q��늳����~�R ����2 ���Q��늳�Ҋ�~�M���� ����3 �̄��Q������~�R������ ����4 �M���ژI�ճ�Ҋ���̼��~�R