1、Is it a good idea to come to class late? You are late, again, Mary! Im sorry Im late. Youre not supposed to come to class late. You are supposed to come to class on time. 应当， 应该 You are supposed to You are not supposed to eat in class do homework every day ou You Youre supposed to raise your hand be
2、fore talking What do people do when they meet for the first time in different countries? Work in pairs and discuss the question. shake hands Sometimes its not polite to shake hands. kiss v. & n. 亲吻，接吻 bow v. & n. 鞠躬 Maybe theyre supposed to bow or kiss. In the United States what do the people do when they meet for the first time? In America, they are supposed to shake hands.
