义务教育课程标准实验教科书 英语（新版) Grade 5 Lesson 26,Is this your schoolbag?,School: No.2 PrimaryClass: 90 Teacher: Li Yunchun,Lets sing,schoolbag,E,activity book,dictionary,Watch out!,Is this your eraser? 这是你的橡皮擦吗Yes, it is.是的。Is this your sharpener?这是你的削笔刀吗？No,it isnt.不，不是。Whose textbook is this?这是谁的课本？ Its mine.它是我的。,Bye bye!,
