题目内容：
设计任务：请阅读下面的学生信息和语言素材，设计20分钟的口语教学方案。教案没有固定格式，
但须包含下列要点：
·teachingobjectives
·teachingcontents
·keyand difficult points
·majorsteps and time allocation
·activitiesand justifications
教学时间：20分钟
学生概况：某城镇普通中学七年级(初中一年级)学生，班级人数40人。多数学生已经达到《义务教育英语课程标准(2011年版)》二级水平。学生课堂参与积极性一般。
语言素材：
Ms Li:Hello, my name is Li Fang. I'm your teacher and you are my students. I'mChinese. I'm from Wuhan. What's your name?
Lingling:My name is Wang Lingling.
Ms Li:Nice to meet you, Lingling. Where are you from?
Lingling:I'm from Beijing. I'm Chinese.
Ms Li:How old are you?
Lingling:I'm thirteen years old.
Ms Li:Good. Hello, what about you?
Daming:Hello, Ms Li, my name is Li Daming and I'm from Beijing, too. I'm twelve yearsold.
Ms Li:Thanks. Hello, are you from America?
Tony:No, I'm not. I'm from England. I'm Tony Smith.
Ms Li:Nice to meet you, Tony. Hi, are you English, too?
Betty:No, I'm not. I'm American and my name is Betty King.
Lingling:Tony and Betty are our friends.
Ms Li:Good! Welcome to Class 4 Grade 7!
参考答案：
答案解析：