Unit 3Is this your pencil,第四课时Section B (1a1e,1The _ is white. 2That is a nice _ 3The _ is not mine. 4I have a yellow _ 5This is my mothers _,baseball,watch,computer,notebook,ring,二、用方框中的单词填空,6I _ a good girl. 7Excuse me._ that your bag? 8These pens _ mine. 9This is _ computer game. 10Is that _ ID card? 11_ book is hers,not his,am,Is,are,a,an,The,三、单项选择。 ( )12._ that your baseball? AWhatBIsCWhats ( )13.Are _ keys yours? No,they are