Unit 6 How long have you been collecting shells? I. Teaching aims and teaching demands: In this unit students learn to talk about how long you have been doing things. II. Teaching key and difficult points: Vocabulary collect, inline, marathon, skate, stamp, shell, globe, monster, particularly, run out of, be interested in last year, times, numbers, How long…? student, school, birthday, penguin, hobby, kite B. Target language How long have you been skating? I’ve been skating since..

课题 Unit 6 How long have you been collecting shells? period 1 （知识能力 品德） 教 学 目 标 Topic: Hobbies Functions: Talk about how long you have been doing things Structure: Present prefect progressive Simple past tense Present progressive tense Target language: How long have you been skating? （重点 难点） 教 材 分 析 Target language: How long have you been skating? I’ve been skating since nine o’clock. When did you start skating? I started sk..