Unit 4 Business Relationship,In this unit you will learn: Language Skills Reading: Corporate Sponsorship Writing: Letters of Invitation Listening: Inviting Skills Speaking: Inviting Business Partners Translation: Business Relationships,Unit Goals,Grammar Focus The Usage of “It” Vocabulary Corporate Sponsorship Concept Business Communication Make an Oral Invitation,Unit 4 Business Relationship,Session 1 Lead in Reading: Corporate Sponsorship Session 2 Language focus Grammar focus: Usage of “it” Session 3 Business communication: Letters of invitation Listen and speak: Inviting Skills,Classroom Design,