Unit 2 Lesson 9 Open and Close,1. 2.3. 4.5. 6.7. 8.9. 10.11.,blackboard,door,desk,teacher,window,girl,boy,pencil box,pencil,chair,pen,kite,leg,mouth,nose,Open the window. 打开窗户。,Close the window. 关上窗户。,“开门”和“关门”？,Open the door.,Close the door.,Open the book.,Close the book.,thank you !,
