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1、 高清视频学案 3 / 3初二下学期第七讲 Experiences北京四中 孙玲I. 现在完成时一、现在完成时构成1.肯定句:S (主语) + have / has + P.P.(过去分词)2. 否定句:S (主语) + have / has + not + P.P.(过去分词)3. 疑问句 Have / Has + S (主语) + P.P.(过去分词)? Yes, S + have / has. No, S + havent / hasnt. 特殊疑问词 + have / has done?二、现在完成时的意义1. I have already finished my homework.表
2、示过去发生或已经完成的某一动作对现在产生的影响或结果，常用时间状语：already、never、ever、just、yet2. I have learnt English for 5 years.表示过去已经开始，持续到现在的动作或状态，常用时间状语：today、these days、for two years、in the past / last few years、since 1984、since he came here3. I have watched the film Avatar 3 times. 表示经历经验，常用时间状语： once, twice, times Exercise
3、: Fill in the blanks:1. A：I _ always _ (want) to try scuba diving (潜水). B：Really? Not me. I _ always _ (be) afraid of deep water.2. A：I _ (not do) anything fun lately. B：Me neither. I _ (not have) any time.3. A：I _ (not see) the new Spider- Man movie. I really want to see it. B: We should go! All my
4、 friends _(see) it, and they loved it.4. A: I want to go to Europe. I _ never _ (be) to Paris. B: Me neither. My cousin lives there. He _ (invite) me several times, but I _ (not have) enough money to go. 参考答案：1. have; wanted; have; been2. havent done; dont have3. havent seen; have seen4. have; been;
5、 has invited; dont haveII. 现在完成时与一般过去时区别1. 一般过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作；现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响。 I have just been to London. I went there last month. 2. 一般过去时常与具体的时间状语连用，而现在完成时通常与模糊的时间状语连用，或无时间状语。 yesterday, ago, in1980, in October, last week recently，just, in the past few years, before,
6、 already, lately, for, since, so far, ever, never, yet, up to now3. 现在完成时可表示持续到现在的动作或状态，动词一般是延续性的，如：live, teach, learn, work, study, know一般过去时常用的非持续性动词有：come, go, leave, start, die, finish, become, get married等。 Exercise: Choose the best answers:1. He _ to draw horses already. When _ he learn it? La
7、st year.A. learnedhas B. learneddid C. has learnedhas D. has learneddid2. Tom _ up into the tree. Look, he _ high up there !A. has gotis B. has climbedwas C. got was D. climbedis3. _ you _ the text yet ? Yes, we _ it two hours ago.A. Didcopydid B. Havecopiedhave C. Havecopieddid D. Did copyhad参考答案：1
8、. D 2. A 3. CIII. A blog: the most exciting experienceRead the blogs and answer the questions:Flying above the rain forestLast summer, I went on the Sky Trek in the rain forest in Costa Rica. Im afraid of heights, so I almost didnt go. Fortunately, there were some great guides, and they really helpe
9、d me. Amazingly, it wasnt really scary. It was the most exciting experience Ive ever had! I didnt see a quetzal bird, unfortunately, so maybe Ill go back. LeonardIm in Athens!As for the island of Lesvos, well, its perfect absolutely perfect. I have been all around the world, and I think that it is t
10、he most beautiful place I have ever been. The sea is so crystal clear that you can see your shadow in water 10 meters deep. The beaches are incredible(难以置信的), and there are these amazing little towns nestled(隐藏于) in the mountains. Peter1. Why did Leonard want to go back to the rain forest?_2. What a
11、re the three reasons Peter thinks Lesvos is absolutely perfect?_参考答案：1. He didnt see a quetzal bird.2. The sea is so crystal clear that you can see your shadow in water 10 meters deep. The beaches are incredible(难以置信的), and there are these amazing little towns nestled(隐藏于) in the mountains.地址：北京市西城区新德街20号四层 邮编：100088 电话：82025511 传真：82079687
