Unit 1 My classroomB lets talkP7Open the door.打开Turn on the light.打开Close the window. 关上Put up the picture. 贴上,挂上 Clean the blackboard.打扫,擦U1ADO.SWFclean the blackboard/kli:n/ Let me 让我擦黑板吧。让我 Let me clean the window!让我擦窗户吧!Let meclean the teachers desk!Ok 好clean the door!Let meGood idea! 好主意!Let meclean the floor! Let meThank you. 谢谢你。help you! 让我帮助你吧!/help/ Let me .Lets clean the classroom!Ok 好lets =let us 让我们Lets clean theboardwindowteachers desk doorclassroomdesks and chairs点 拨 :Lets clean t