课件9张PPT。Period 2Unit 12 Put it on the deskYes, mom.Jack, put your pen in your pencil box.Xiao xin, put your ball under the bed.OK, dad.Jane, put your bag on the desk.Yes, sister.Bob, put your car in the box.Ok, brother.History of writingDo the project.Homework: 回家整理你的房间,边整理边用今天学过的句子说给妈妈听。Thank You.