Unit 4 Is this a teddy?,泰迪熊,a box,盒子，箱子,a bag,包，袋,a puppy,a puppy 小狗,This is a -.,Is this a -? 这是一个什么吗？,Yes. 是的。 No. This is a -. 不，这是-。,Is this a -?,Is this a puppy? No, this is a teddy.,Is this a -?,Is this a box? Yes.,Hello, Yang Ling.,Hi, Su Yang,Is this a box?,Yes.,Hello, Yang Ling. Hi, Su Hai. Is this a box? Yes. Is this a bag? Yes. Is this a teddy? No. This is a teddy?,Is this a teddy?,
