现在完成进行时教案.doc

现在完成进行时教案 常德淮阳中学 肖祥法 Teaching aims：1. Review the grammar Continuous Tense2. Master the basic structure of the Present Perfect Continuous Tense3. Figure out the difference between Present Perfect Tense and Present Perfect Continuous TenseKnowledge aims:Teaching key point: Master the basic structure and the significance of Present Perfect Continuous TenseTeaching difficult point: How to distinguish the Present Perfect Tense and Present Perfect Continuous TenseTeaching Procedures:Step 1Greet the class as usualStep 2 Lead-inAsk some students the questions:What are you doing now? When did you begin to study English? Help the students answer: Were having an English class. We began to study English about 6 years ago. Youre studying English now. Youll go on studying English. So, we say:“You have been studying English for about 6 years”How long have you been studying English?引出现在完成进行时Step 3 New study1.The basic Structure of the Present Perfect Continuous Tense 现在完成进行时形式： 主语 + have/has + been + doing 划线识别题 Those cats have been screaming for two hours.We have been waiting for him for two hours.It has been raining all day. I have been living here since three years ago.He has been reading this book for a week.You have been singing all day. 2.the significance of Present Perfect Continuous Tense引例句：It began raining two hours ago.It is still raining now.通过以上两句引出：It has been raining for two hours.已经下了两小时的雨了。 现在完成进行时的意义 1）.过去发生 动作一直持续 常搭配时间状语： since + 时间点；for + 时间段；all day等。 例句 Tom began playing games at 8 oclock.He is still playing games now.Tom has been playing games since 8 oclock. 分析句子 It has been snowing all day.We have been waiting for you since 6 oclock.They have been chanting for three hours. 翻译 他已经睡了一整天了。 He has been sleeping all day.Lily 已经哭了一小时了。 Lily has been crying for an hour.你已经学了六年英语了。 You have been learning English for six years. 现在完成进行时的意义 2).表示在一段持续的时间内动作的多次重复，而这个重复的动作在说话时并不一定在进行。 例句 They have been building the bridge for two month.He has been playing basketball since he was ten.Maggie has been teaching English for ten years. 翻译 他已经踢了八年足球了。 He has been playing football for eight years.自从今年开始我一直坚持早起。 I have been getting early since this year. 从昨天晚上以来我就一直告诉他别去。 I have been telling him not to go since last night. 3. How to distinguish the Present Perfect Tense and Present Perfect Continuous Tense现在完成时与现在完成进行时的区别1).现在完成时强调动作的完成，而现在完成进行时强调动作的延续，因此，表示动作的完成，只能用现在完成时，而不能用现在完成进行时。如：He has changed his idea.他改变了想法。2).在表示动作的延续时，虽然既可用现在完成时，也可用现在完成进行时，但现在完成进行时强调动作的进行。因此在需要明确表示动作还要持续下去时，应用现在完成进行时。如：We have been studying here for two years.我们在这儿已经学习了两年了。相同点：1）谓语动词都是延续性的，如live，learn，study，wait,work,rain等。 2）都与“一段时间”连用。 例句 I have been learning/learned English for ten years.I have been living/lived here since three years ago. 不同点： 1）现在完成时结果，现在完成进行时过程。 2）现在完成进行时带有一定的感情色彩。 例句 He has sung for two hours.He has been singing for two hours. Step 4 PracticeI have got a headache.No wonder. You_in front of that computer too long.A. work B.are working C.have been working D.workedIm sure Andrew will win the first prize in the final.I think so. He_for it for months.A.is preparing B.was preparing C.had been preparing D.has been preparingExcuse me, Marcia, a reporter fromVanity Fair_all day. Could you speak to her now?A.phones B.has phoned C.has been phoning D.phoned翻译 我从昨天晚上就一直在给你打电话。 I have been calling you since last night。 他已经等了我两个小时了。 I have been waiting for you for two hours. 我已经工作一整天了。 I have been working all day。 Step5 Summary 本课内容重点：现在完成进行时的形式：主语 + have + been doing现在完成进行时的意义：1. 过去发生的动作一直持续到现在 2. 在一段持续的时间内动作的多次重复现在完成时与现在完成进行时的比较：相同点：1）谓语动词都是延续性的，如live，learn，study，wait,work,rain等。 2）都与“一段时间”连用。 不同点：1）现在完成时结果，现在完成进行时过程。 2）现在完成进行时带有一定的感情色彩。 Step 6 Homework 1. 复习课上所学知识点2. 完成现在完成进行时的相关练习。 1.Tom_in the library every night over the last three months.A.worksB.workedC.has been workingD.had been working2.Now that she is out of a job, Lucy_going back to school, but she hasnt decided yet.A.had consideredB.has been consideringC.consideredD.is going to consider3.I wont tell the student the answer to the math problem until he_on it for more than an hour.A.has been workingB.will have workedC.will have been workingD.had worked4.Cathy is taking notes of the grammatical rules in class atSunshineSchool, where she_English for a year.A.studiesB.studiedC.is studyingD.has been studying5.I have got a headache.No wonder. You_in front of that computer too long.A.workB.are workingC.have been workingD.worked6.Im sure Andrew will win the first prize in the final.I think so. He_for it for months.A.is preparingB.was preparingC.had been preparingD.has been preparing7.Excuse me, Marcia, a reporter fromVanity Fair_all day. Could you speak to her now?A.phonesB.has phonedC.has been phoningD.phoned8.Over the past decades, sea ice_in theArcticas a result of global warming.A.had decreasedB.decreasedC.has been decreasingD.is decreasing9.Why, Jack, you look so tired!Well,