1．重点单词：custom，bow，kiss，greet
2．重点短语：shake hands，be supposed to，the wrong way，hold out
3．重点句式：
—What are you supposed to do when you meet someone for the first time?
—You are supposed to shake hands.
They are expected to shake hands.
As soon as I held out my hand, he bowed.
She kissed me on both sides of my face!
