内容导读：
Unit 12
You‘re supposed to shake hands.
Listen and check your answers.
Countries Customs
1. ____ Brazil a. bow
2. ____ the United States
3. ____ Japan b. shake hands
4. _____ Mexico
5. _____ Korea c. kiss
Language points：
You are supposed to shake hands.
be supposed to do… 应该……被期望做……，当句子的主语是人时， 它可以用来表示劝告， 建议， 义务， 责任等， 意思是 “to be expected to do sth， or to have to do sth.”
You’re supposed to ask the teacher first if you want to leave the classroom.
如果你要离开教室，应该先问问老师。
We are not supposed to play football on weekday.
不准我们在平日踢足球。
更多精彩内容不容错过！尽在......
