Unit9 On and off 苏教牛津版三年级上册英语Let’s sing : Hello, how are you ?Hello! Hello! How are you?Hello! Hello! How are you?I’m fine, thank you. I’m fine, thank you. a door门the door. 关上Closethe door.打开Opena window窗户a box a basket篮子Open and closeOpen your books. Read and read.Close your books. Listen to me.Open the box. Please have a look.Close your eyes Think, think, think.Let’s chantopen and closeGoodbye !