Period ThreeTeaching Aims:Learn to talk about how often they do things to keep healthy.Teaching Difficulties:1.Words:junk food, milk, coffee, chips, cola, chocolate, drink, health, how many, interviewer.2.Phrases: how many, be good for, be bad for, every day.3.Sentence patterns: How often do you drink milk, Liu Feng?How many hours do you sleep every night?She says its good for my health.Teaching Aids: Tape recorder; Multi-Media.Teaching Procedures:Step 1 ：Greeting.来源:gkstk.ComStep 2 ：Warm-up 来源:gkstk.Com1.Enjoy an English song.2.Free talk. Talk with Ss about the following questions:Do you like fruit vegetables?Yes, I do.I love it/ them. Its/Theyre delicious. And its /theyre healthy food. Its/Theyre good for our health. Or No, I dont. Its awful. I cant stand it.来源:学优高考网gkstkAsk Ss: How often do you eat fruit vegetables?Step 3: Presentation1.Teach milk. Do you like milk? Do you drink milk every day? Why /Why not?来源:学优高考网2.Then teach chip /cola/chocolate/coffee in the same way. Dont forget to ask them Are they/Is it healthy food /drink? Theyre /Its healthy/unhealthy/ junk food. Dont eat /drink them /it too often.Step 4: Pair workSs make a similar conversation by themselves.A: How often do you eat? drink?B : I eat/drink every day/.A: Do you like it ?B: Yes, I do. Its good for my health.来源:学优高考网/No, I dont. But my mother wants me to eat/drink it.Step5 : PresentationThe teacher asks Ss other questions:How often do you exercise/watch TV/read English/play computer games?How many hours do you exercise/watch TV/read English/sleep/play computer games?Step 6: Pair workGet Ss to make a long conversation by themselves.Step 7: Listen (work on 2a)Get the Ss to listen and circle the answers to each question .Later check the answers.Step 8: Work on 2b Listen again and fill in the blanks in the survey. Then check the answers.Step 9 .Group workRole play. Student A is the interview. Student B is Katrina. Student C is Bill. Try to act the conversation out .They can use their own words.Step 10.Task Get the Ss to ask their classmates as many questions as they can about their lives. The questions above (2b) can help them. After that they can give a report in front of the class.Step 11. Homework :1. Finish the exercise in this period.2. Write the report in the exercise book.教学反思：