Unit 3 A healthy life
step 1 warming up1.warming up by looking and talkingask the students to look at the following pictures and see what they are doing，then judge which are healthy activities while which are unhealthy ones.the students should be encouraged to de scribe the pictures in their own words.picture one：they are singing.(healthy)picture two：they are drinking alcohol.(unhealthy)picture three：they are doing taiji.(healthy)picture four：they are eating too much.(unhealthy)picture five：he is smoking.(unhealthy)picture six：they are playing basketball.(healthy)2.warming up by reading the following passage.nowadays，it is a fashion to eat healthy food，such as organically－grown food，and do exercises to keep healthy.in brief，people are trying to live a healthy life.but what should be done to live a healthy life？different people have different ideas.someone says to live a hea lthy life is to have a strong body.some people think keeping psychologically healthy is very important.in my view，it's essential to keep physically and psychologically healthy.to keep physically healthy，you should do sports like running，playing basketball，etc.today more and more people go to the fitness centers.there are some popular ways of fitness like yoga which is a sensation in many big cities today.i think it is very useful for us to do some exercises every day.in this way，we can have a strong body.more importantly，to keep psychologically healthy，you should have a good attitude towards people around you.we often say：“attitude is everything.” it means good attitude leads to a good mood.in this way we can keep psychologically healthy.it is more sensible to have positive attitude.when you meet with some hardship，you should not be sad.you should have confidence in yourself and do something for relaxation.you should say to yourself：“i can make it.i am one in a million.i am special in this world.” in this way，you definitely have a good mood and work efficiently.in a word，to live a healthy life is a comprehensive project in a way.we should keep healthy both psychologically and physically.in our daily life we should do some exercises and have a positive attitude towards life.we can also turn to some specialists for advice.only in this way can we live a healthy life.after reading the passage，let students answer a question：what's a healthy life?suggested answer：to be truly healthy，a person must be well in mind，body and spirit.step 2 pre－reading1.discussion：(1)why do you think some adolescents start smoking?