（闽教版）四年级英语下册教案 unit 4 Unit 4 Activities after Class Lesson 8 Teaching aims and demands: Knowledge aim： 1.To enable Ss to understand and speak the pattern： What is blue? The sky is blue. What is white? The clouds are white. What is green? The grass is green. What is red? The sun is red when it goes to bed. 2.To demand Ss to hear and speak these words correctly: cloud，grass. Ability aim：Can talk about the colors about something. Emotion aim：Improve the Ss’ abilities of communication and cooperation. Teaching materials: Teacher’s tape; some Cards Teaching steps: Step 1 Warm-up/ Review Sing the song together：Row Your Boat. Guessing riddles. Play Simon Says game. Step 2 Presentation To learn the sentences:Yellow and blue make green. Yellow and red make orange. White and red make pink.Learn to chant.1).Introduce the new sentences: What is bl