Unit 6 How long have you been collecting shells ?桦甸三中 丁仁凯See the worldLearn EnglishChina goes to the worldGrammar: sentence structurehave + been +v+ing现在完成进行hasEg: I have been learning English forfive years.Li Lei has been dancing since 2000.For two yearscollect v.collection n.collector n.Eg: Li Lei collects stamps.My collection is about stamps.I am a collector.skate v. skate n. skater n. Eg: I can skate. I need a pair of skate.I am a skater.shell n.shell vt.shell vi. Eg: I have a shell.I shell the peanut. The peanut is shelling.marathon n. A kind of sports which sportsmen have a long way to run. Id like to take part in marathon.pair n.a pair of Eg:I am near-sight. I want to buy a pair of glasses.Lets play a making-up sentence game1. marathon n.2. collect v. 3. pair n.4. shell n.5. skate v. 6. skate n.To make up some dialogues by using the present Perfect progressive tenseHomework:Thank you for cooperationGoodbye