Unit 2 Keeping HealthyTopic 1 You should brush your teeth twice a day.Section ATask 1Warming-upFree talkHow can we keep healthy?Eat healthy food.Do exercise.Go to bed early.Whats wrong with them?He has a backache.Pre-listeningExpressionsHe has a cold.He has a fever.He has a headache.Pre-listeningShe has a toothache.He has a cough.Listen and number the picturesWhile-listening4135762Ask and answer questions with your partner based on 1cWhile-listening4135762Example:A:Whats wrong with you?B:I have