第 4 课时授课时间Teaching contents:Play the puzzle and do some activities.Teaching Aims:desk,chair,window,door,board, How many, What colourImportant points:How many……are there?Difficult points:What colour……is/are……?【教学流程】【教学过程】【个性设计】Warming-up1. Greetings and free talk.2. Revie...