Unit 3 This is my sister. Period 1 I.Teaching Aims and Demands 1. Knowledge Objects Key vocabulary: sister , mother , father, parent , brother , grandmother , grandmother , friend , grandparent , those , are , thats=that is , these Target language: This is his friend. That is his sister. These are his parents. Those are his grandparents. 2. Ability Objects Train Ss listening skill. Train Ss communicative competence. 3. Moral Object A friend in deed is a friend