Unit 1,Welcome back to school,Introduce,A: Good morning, boys and girls. Class, we have a new friend today. B: Hi, Im Mike. Im from Canada. A: A boy or a girl ? B: A boy. Good morning, Mr. Black ! A: Welcome,Words,UK,名词，意为“英国”。 完整形式：the United Kingdom,小练习：看图选词填空。 -Where are you from ? -Im from _,A. UK B. China,讲解】A,拓展】UK是the United kingdom的缩写，意为“联合王国”，简称“英国,A,Words,Canada,名词，意为“加拿大”。缩写形式：CAN,小练习：看图选词填空。 -Im from _. -Me too,A. China B. Canada,讲解】B,B,Words,USA,名词，意为“美国”。完整形式：the United
