Unit 3 The Internet 五步教学法语法聚焦：现在完成时被动语态 课件-2025-2026学年高中英语人教版必修第二册

Unit 3The Internet Passive voice in the present perfect tense 1.To review the present perfect tense 2.To learn the passive voice in the present perfect tense Learning aims Lead in Have you ever played this game? Honor of King An enemy has been slained. An ally has been slained. You have been slained. What do these sayings mean in Chinese? Step 1: Self-learning自主学习 1.We've known him since we were nine or ten/for 6 years. 2.In the past few years, he has made great progress. 3.I have recently read a very interesting book. 4.So far, I haven't met any problems. 5.He has been to the United States three times. 6.She has just had brunch. 7.They haven't decided where to go for vacation yet. Read these sentences. 've known has made have read have met has been has had have decided 现在完成时基本构成: have/has+ved(动词过去分词) 常与现在完成时连用的时间状语 already 已经(肯定句) yet 已经（否定句或者疑问句） recently/lately 最近 ever 曾经 just刚刚 ever since 自那以来 since +时间点 so far 迄今为止 for +时间段 by now/up to now 到现在为止 once/twice/three times in recent years 在最近几年里 in/during/over the past/last ...months/years在过去的....月/年里 in the past 10 years 在过去的十年间 /over the last decade Step 2: Exploring 探究新知 1.He has been known since we were nine or ten/for 6 years. 2.In the past few years,great progress has been made by him. 3.A very interesting book has been read recently . 4.So far, any problems haven't been met by me. 5.The United States has been visited three times by him. 6.Brunch has just been had . 7.Where to go for vacation hasn't been decided yet. 现在完成时被动语态构成: have/has+been +ved(动词过去分词) has been known has been made has been read have been met has been visited has been had has been decided Many houses (destroy) by the disaster already. have been destroyed Series of Harry Porter books (write) by J. K. Rowling up to now. have been written 用法1:被动动作发生在过去,已经完成; 或强调对现在 造成影响或产生结果。 Step 3: Focusing 精讲点拨 7 A new library (build) since two years ago. has been built Paper money (use) for over 1000 years. has been used 用法2:被动动作发生在过去,持续到现在,并有可能继续 持续下去。 8 肯定形式： His tasks have been completed. 否定形式： His tasks have not been completed. 一般疑问句: Have his tasks been completed yet? 特殊疑问句： How long have his tasks been completed? 主语+have/has been done... 主语+have/has not been done... have/has+主语+been done...? 疑问词+have/has+主语+been done...? 现在完成时被动语态的结构形式 1. Paper money ____________ (use) for over a thousand years. 2. — _____ the watch ____________ (return) to Mr. Brown? — No. It’s still on the sofa. 3. Great changes ___________ (take) place in China and a lot of new roads ______________ (build) . has been used Has been returned have taken have been built 用括号内动词的正确形式填空。 Step 4: Practising有效训练 10 10 4. —How long _____________________ (lose) ? 你钥匙丢了多久？ —For at least 3 hours. 5. When and where to spend the three-day vacation __________________ (not, decide) yet. 6. Our living conditions ______________ (improve) in the past 20 years. 7. All the preparations for the party __________________ (complete), and we’re ready to start. have been improved have been completed has not been decided have your keys been lost 1. More public transport _____________ (build) in China, making it easier for people to travel. 2. Despite the previous rounds of talks, no agreement ________________ (reach) so far by the two sides. 3. I ______________(show) around the Water Cube for many times since it was built. has been built 高考链接 has been reached have been shown Step 5: Reflecting反思升华 1. 圈主：原句动词的宾语变成被动句的主语； 2. 定数：根据新的主语确定用have还是has； 3. 成句：have/has与原句ved之间加been 如何将现在完成时句子变被动语态？ They have cleaned the room already. The room 单数 has cleaned been already by them. 用将下列句子改成被动语态。 1.We have built the new railway line by now. The new railway line has been built by now. 2. The little child has downloaded the software to help us. The software has been downloaded to help us by the little child. 3. The car factory has produced many fine cars since last year. Many fine cars have been produced by the car factory since last year. 14 现在完成时的被动语态 含义 结构 表示过去发生的被动动作现在已经完 成或仍将持续, 强调对现在的影响 have/has been done 形式 肯定式 否定式 疑问式 have/has been done have/has not been done Have/Has+主语+been done? 特殊疑问词+have/has+主语+been done? 用法 表示已经完成的被动动作 表示过去开始的被动动作一直持续到现在 表示某被动动作对现在造成的影响或结果 注意事项 动词短语不可分割也不可省略其中的介词和副词 不及物动词或词组无被动 Summary 提示现在完成时 的时间状语 Homework 1.Review the grammar. 2.Finish more exercise. Thank you! $