28.请认真阅读下列材料并按要求作答:
Guoguo:Hi,Mike.Why are you standing there?
Mike:Hi,Guoguo.l'm waiting for my dad's friend.
Guoguo:ls it a man or a woman?
Mike:A man.Look!Here he comes.
Guoguo:There are two men.Which one?What is hewearing?
Mike:lt's the taller man.He is wearing a blue suit with a silver tie.
Guoguo:Ah,yes.He is wearing a pair of black shoes.
Mike:Yes,he is Mr Brown He's a lawyer.
Guoguo:No wonder he looks so serious. I have to say good to you now.
Mike:Bye-bye!See you tomorrow,Guoguo!
(1)简要阐述对话教学的基本环节。
(2) 如指导小学生学习此对话内容试拟定相应的教学目标。
(3)依据拟定的教学目标,设计操练环节并说明理由。