Unit1 ClassroomLesson 1on在在.上面上面in在在里面里面under在在下面下面Put your . on/in/under the .Lets doPut your schoolbag on the chair.Put your schoolbag under the chair.Lets playPut your . on/in/under the .Lets chant.On my desk,I can see,A book for you,A book for me.Under the chair,I can see,A schoolbag for you,A schoolbag for me.In my classroom,I can see,A blackboard for you,A blackboard for me.Lets chant.On my desk,I can see,A book for you,A book for me.Under the chair,I can see,A schoolbag for you,A schoolbag for me.In my classroom,I can see,A blackboard for you,A blackboard for me.Summaryblackboarddeskchairput your schoolbag under the chair.put your schoolbag on the chair.Homework1.看书认读本课新单词。2.和同学用英语谈论教室里物品的摆放。