约6200字。

　　Unit 6  How long have you been collecting shells?
　　(全单元教案，共6课时）
　　Ⅰ.Analysis of the Teaching Material
　　1.Status and Function
　　The topic of this unit is about hobbies.In this unit students learn to talt How long you have been doing things.
　　The topic is very interesting and practical,so it is useful and helpful for students to raise the learning interests of them.
　　(1)In the first period Section A opens with a picture.The picture introduces the target language for students to practice the new language.
　　All activities in this period introduce the key vocabulary and the target language.Activity 1c provides guided oral practice.Students can improve their listening and speaking skills.
　　(2)In the second period all activities provide listening and speaking practice.Students can improve their listening and speaking skills by doing these activities.At the bottom of this page,there is a grammar focus box.It provides students with a clear revision of present perfect progressive and simple past tense.
　　(3)All activities in the third period provide reading,writing and speaking practice using the target language in this unit.Pairwork and groupwork present an opportunity for students to measure their vocabulary production against their comprehension and encourage students to use the names of the sports to discuss their own experiences.Students can improve their integrating skills.
　　(4)Section B introduces new vocabulary while recycling the target language presented in Section A.In the fourth period all activities give students a chance to remember more vocabulary words.And students can also have an oral practice using the target language.
　　(5)Students can improve their reading skill by doing Activity 3a in the fifth period.Activity 3b gives students a chance to practice writing an e-mail message using the target language.Activities 4a and 4b let students practice their speaking and listening skills in groups.
　　(6)Self Check section helps students review all key vocabulary as well as new grammar items.It ends with a cartoon using the target language in an amusing way.
　　(7)In the last period of this unit it deals with the reading.All the activities in this period encourage students to use the reading strategy for comprehension.This can help students improve their reading skill and ability of understanding.In this period students will learn about some different food cultures between China and Western countries.This helps students know about different cultures in different countries.
　　2.Teaching Aims and Demands
　　(1)Knowledge Object
　　In this unit students learn to talt how long you have been doing things.
　　(2)Ability Objects
　　To improve students’ ability of listening,speaking,reading and writing.
　　To improve students’ ability of communication.
　　To improve students’ ability of intergrating skills.
　　(3)Sensibility and Value
　　To enable to cooperate with other students,help each other and complete the tasks together.
　　To be able to learn about the food cultures in different countries.
　　3.Teaching Key Point
　　To be able to master the key vocabulary and the target language in this unit.
　　4.Teaching Difficulty
　　To train students how to use the target language correctly in speaking and writing.
　　5.Studying Ways
　　To teach students how to induce.
　　To teach students how to cooperate.
　　Ⅱ.Language Function
　　Talt how long you have been doing things.
　　Ⅲ.Target Language
　　How long have you been skating?
　　I have been skating since nice o’clock.