Unit 3 Dicovering useful structuresppt课件-（2019新教材）人教版高中英语必修第二册.pptx

1、The Present Perfect Passive Voice 被动语态现在完成时被动语态现在完成时 1. 被动语态被动语态现在完成时形式现在完成时形式 A. 陈述句：陈述句： 主语主语+ have/has (not) +been+done B. 疑问句：疑问句： (疑问词疑问词)+ have/has +主语主语+been+ done? 2. 被动语态被动语态现在完成时的用法现在完成时的用法 (1) 表示表示某一某一被动动作发生在过去被动动作发生在过去(现在说现在说 话前话前)，但与现在的情况有联系。常与下，但与现在的情况有联系。常与下 列时间状语连用：列时间状语连用：just, alre

2、ady, yet, before, recently, lately, so far等。等。 The door has been locked. 门已经被锁上了。门已经被锁上了。 （现在说话时门是锁着的）（现在说话时门是锁着的）Compare: The door was locked. 门当时是锁着的门当时是锁着的/被锁上了。被锁上了。 （与现在说话时门的状态无关，可能锁（与现在说话时门的状态无关，可能锁 上或重新打开了）。上或重新打开了）。 (2) 表示某一延续性的被动动作或状态从表示某一延续性的被动动作或状态从 过去某时一直延续到现在说话时，并有过去某时一直延续到现在说话时，并有 可能继续

3、下去。与可能继续下去。与since, for , all day, in/for/over/ during the past/last few years 等表示的时间状语连用。等表示的时间状语连用。 The bank has been closed since July/for several weeks. 自从七月以来银行一直关自从七月以来银行一直关 门门/已经关门好几个星期了。已经关门好几个星期了。 The child has been taken care of by Grandma Wang all these years. 这多些年来这孩子一直又王奶奶照看。这多些年来这孩子一直又王

4、奶奶照看。 (3) 用在时间和条件状语从句中用在时间和条件状语从句中, 表示将来表示将来 某时已完成的动作。如：某时已完成的动作。如： Well start out as soon as the work has been finished. 工作一完成我们将出发。工作一完成我们将出发。 注意：下来情况下用被动语态：注意：下来情况下用被动语态：1. 1. 强调强调 动作的承受者动作的承受者，即动作的承受者即动作的承受者是是谈话谈话 的中心的中心。2.2.不知道或不必要或不知道或不必要或为了委婉为了委婉 / /礼貌礼貌, , 不不便便说出动作说出动作的发出者。的发出者。3 3. . 当当 动作的

5、执行者带有较长的定语。动作的执行者带有较长的定语。 1. Complete the sentences according to the text. Nearly 500,000 high-quality digital photographs _ (produce) since the international project started in 1994. The Getty museum in Los Angeles _ even _(reproduce) a copy of the caves and paintings for people to admire in Americ

6、a. have been produced has reproduced Many people _ (help) by the club. The Boys and Girls Club which he started in Chicago_ (help) young people since 1996. The statues fill only one part of the emperors huge tomb, which still _ comletely _ (not unearth). Workers built shelters for survivors whose ho

7、mes _ (destroy). Hundreds of thousands of people _(help). have been helped has been helping has not been unearthed had been destroyed were helped Indian officials said as many as 1,900 _ (kill) along the southern coast. First as a PC and then as a laptop, I _ (use) in offices and homes since the 197

8、0s. Since the 1970s many new applications _ (find) for me. had been killed have been used have been found 2. Make choices 1. -_ the sports meet will be put off. A. Ive been told B. Ive told C. Im told D. I told 2. All the preparations for the task _, and were ready to start. A. completed B. complete

9、 C. had been completed D. have been completed 3. - How long _ at this job? - Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed 4. When and where to go for the on- salary holiday _ yet. A. are not decided B. have not been decided C. is not bei

10、ng decided D. has not been decided 5. Betty_ injured since last Saturday. A. has been B. was C. is D. has 6. Hi, Tom, you look tired. - Of course. I _ the living room all day. A. had painted B. painted C. have been painted D. have been painting 7. -Did you move into the new house? - No. The rooms _

11、yet. A. were being painted B. are painting C. have not painted D. have not been painted 8. Great changes _ in my hometown and a lot of factories _ in the past few years. A. have been taken place; are being set up B. have taken place; have been set up C. are taken place; had been set up D. took place

12、; will set up 9. Rowlings novels _ into many foreign languages so far A. had translated B. has translated C. were translated D. have been translated 10. You cant move in. The house _. A. is painting B. is being painted C. has painted D. has been painted 11. Millions of pounds worth of damage_ by a s

13、torm which swept across the north of England last night. A. has been caused B. had been caused C. will be caused D. were caused 3. Fill in each blank with each verb in the bracket in its proper form. Coca-Cola _ (enjoy) all over the world. 1.6 billion gallons _ (sell) every year, in over one hundred

14、 and sixty countries. The drink _ (invent) by Dr John Pemberton in Atlanta _a health drink on 8 May 1886, _ it _ (give) the name Coca-Cola by his partner, Frank Robinson, _ it _ originally _ (make) from the coca plant. In the first year, only nine drinks a day _ (sell). The business _ (buy) by a man

15、 called Asa Candler in 1888, and the first factory _ (open) in Dallas, Texas, in 1895. Coca-Cola _ still _ (make) there. Billions of bottles and cans _ _ (produce) since 1895, but the recipe _ still _ (keep) secret! Diet Coke _ (make) since 1982, and over the years many clever advertisements _ (use)

16、 to sell the product. It is certain _ Coca-Cola _ (drink) far into the twenty-first century. 3. Fill in each blank with each verb in the bracket in its proper form. Coca-Cola _ (enjoy) all over the world. 1.6 billion gallons _ (sell) every year, in over one hundred and sixty countries. The drink _ (

17、invent) by Dr John Pemberton in Atlanta _a health drink on 8 May 1886, _ is enjoyed are sold was invented as but it _ (give) the name Coca-Cola by his partner, Frank Robinson, _ it _ originally _ (make) from the coca plant. In the first year, only nine drinks a day _ (sell). The business _ (buy) by

18、a man called Asa Candler in 1888, and the first factory _ (open) in Dallas, Texas, in 1895. Coca-Cola was given becausewasmade were sold was bought was opened _ still _ (make) there. Billions of bottles and cans _ _ (produce) since 1895, but the recipe _ still _ (keep) secret! Diet Coke _ (make) sin

19、ce 1982, and over the years many clever advertisements _ (use) to sell the product. It is certain ismade have been produced iskept has been made have been used _ Coca-Cola _ (drink) far into the twenty-first century. will be drunk that Jans life has been greatly improved by the Internet. Much has be

20、en written about the wonders of the World Wide Web. Talk about somerthing that has been done 1.Read the pairs of sentences. Underline and compare the different verb forms. The Internet has greatly improved Jans life. People have written much about the wonders of the World Wide Web. Verb form How do

21、we from the present perfect passive voice? Fill the blank. Active have/has + done Passive_ have/has been + done 2. Change the sentences into the present perfect passive voice. Theyve built a kind of new PC with more functions. A kind of new PC with more functions has been built. EXAMPLE 1. I have do

22、wnloaded the software to help my phone battery last longer. 2. Someone has lost an identity card. The software has been downloaded to help my phone battery last longer. An identity card has been lost. 3. Have you confirmed the Wi-Fi password? 4. Have you pressed the button yet to copy the file? 5. H

23、as anyone made a comment about the online database? Has the Wi-Fi password been confirmed? Has the button been pressed yet to copy the file? Has a/any comment been made about the online database? Find out the differences in meaning and function between the active and passive forms. Read the poem. Lo

24、ok at the way your face has been washed Look at the way your teeth have been brushed Look at the way your shoes have been cleaned Youd better do them again. Look at the way the flowers have been planted Look at the way the grass has been cut Look at the way the paths have been swept I hope that youl

25、l come here again. Think of your own situation and write a similar poem. Pair work Share your poem with your partner! Pair work Look at the way the floor has been cleaned Look at the way the blackboard has been wiped Look at the way the way the desks and chairs have been arranged Youd better do them again. Sample Look at the way the topic has been chosen Look at the way the words have been used Look at the way the passage has been developed I hope you write it again. Sample