Hello, boys and girls, nice to see you again. How are you today? You are fine. You feel bad ! What’s wrong with you, Sarah? You looks pale. Oh, I am sorry to hear that. You’d better go to the see the doctor. You guys should look after yourselves well. Don’t catch cold. As we all know, we may go to doctor’s from time to time. In what condition will you go to see the doctor? Have a talk with your partner and get as much as possible conditions, Ok? Keep your outcome in mind, now let’s come to study Unit2 What’s the matter?