Unit 13 Healthy eating 教案

unit 13 healthy eating 教案
　　i. teaching aims:
　　reading the text and finish the exercises on the book.
　　understand the content of the text and learn some language points.
　　similar dialogue presentation with new words and expressions used within
　　ii. teaching aids: tape recorder, pictures 
　　step 1 lead- in
　　1. show some pictures (chocolate/ pears; hamburger/ banana; a soft drink/ fried chicken…ect), let ss speak out the name of them and decide which of the food give them the most energy.
　　t: if you eat too much junk food such as chocolate, hamburger, fast food, you will become fatter and fatter, just like this (show a picture of fat man or woman).
　　t: what is the healthy food in your mind?
　　ss: vegetable, fruit, milk…(teacher write down the name of food on the blackboard)
　　t: why do you think they are good for our health?
　　ss: because they contain lots of vitamins….
　　2. ask some questions to ss:
　　  how many meals do you eat every day?
　　  how much water do you drink every day?
　　  do you like milk? why?
　　  what kind of snacks do you eat?
　　step ii. reading
　　1. skimming   let ss read the passage carefully and answer the question:
　　  what does the word “green” mean in the text?
　　2. skipping  let ss read the passage again, and answer some questions:
　　  what about the word “fuel”? can you find any other words used in the same way?
　　  how have our eating habits changed? why?
　　3. listening   play the tape and let ss follow, paying attention to the intonation.
　　step iii  discussion
　　get ss work in pairs. discussion the following questions:
　　why do people go to fast food restaurants?
　　what do you think of the food of mcdonald’s or kfc?
　　why is it not good for you to eat too much sugar and fat?
　　why are crash diets and supplements so popular?
　　what can we do to keep a balanced diet?
　　step iv pair work
　　let ss imagine that they are in mcdonald’s or kfc for dinner/ breakfast/ supper, and write down what kind of food they like to eat. and let them decide which one is junk food or healthy food. try to think of as many reasons as possible.
　　step v. language points and useful expressions
　　too much
　　too many calories
　　keep up with
　　the high pace of modern life
　　make many choices
　　had better
　　keep sth well
　　base on
　　part of
　　either because… or because
　　eco-food
　　be harmful to
　　human beings
　　offer advice