人教新课标高中英语必修2《Unit3 Learning about language》课件

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1、Fill the word or expression for each of the following meanings from the text.,1 _ complete change in ways ofthinking, working, etc 2 _ connected computer system 3 _ to make things easier,revolution,network,simplify,Learning about Laguage,Page 21,4 _ to find the answer using numbers 5 _can be moved e

2、asily from place to place 6 _ to work out the answer to aproblem 7 _to travel around an area tofind out about it,calculate,mobile,solve,explore,8 _ completely 9 _ anyway 10 _ activity of managing money,totally,anyhow,finance,Complete the passage with the words below.,artificial technology intelligen

3、t applications explore Web reality logically,My brother was very interested in computers and enjoyed writing programs of his own. He used to download information from the Internet and made,good use of it. He liked to _ the World Wide _ and used the Internet to communicate with computer programmers a

4、ll over the world. When he went to university he studied IT (information _)and developed a special in _,explore,Web,technology,artificial,intelligence. After developing special _of the computer, he hopes to design an _ robot which can think _ and look like human being, but in _ he was a long way to

5、go.,logically,applications,intelligent,reality,Grammar,The Present Perfect Passive Voice,Discovering useful structures,Page 21,3. Learning about passive voicean overview,4. Understanding the structure of the present perfect passive voice The structure of the present perfect passive voice is: have/ h

6、as beened,Learning about passive voicean overview,First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told! Since the 1970s many new applic

7、ations have been found for me.,Answer key for exercise 1 on page 21,I have also been put into robots and used to make mobile phones as well as help with medical operations. I have even been put into space rockets and sent to explore the Moon and Mars.,has/have been done,现在完成时,被动语态,现在完成时的被动语态,现在完成时的被

8、动语态表示动作发生在过去, 到现在已经完成或对现在仍有影响。,现在完成时的被动语态,Understanding the structure of the present perfect passive voice The structure of the present perfect passive voice is: have / has beened,注意:,副词的位置often, usually, always, never, hardly, seldom等副词置于have / has和been中间。如:误 Such a man has been hardly believed.正 S

9、uch a man has hardly been believed.,2. 并不是所有动词都有被动语态1) happen, take place, break out, belong to, cost, last等不及物动词或词组无被动语态。如：误 Great changes have been taken place in China since 1978.正 Great changes have taken place in China since 1978.,2) open, break, drop等不强调动作发出者时常用主动语态。,3. 短语动词不可分割或省略其中的介词或副词。如：

10、The patients have been taken good care of.,4. 一些特殊动词, 如borrow, finish, begin, buy, start, return, marry, open, join等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思， 则需改换动词或时态。如：,My brother has had (不能用has bought) this bike for almost four years. How long has this book been bought? How long ago was this book b

11、ought?,(1) 把主动语态的宾语变为被动语态的主语。 (2) 把谓语变成被动结构 (be过去分词)(根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式)。,主动语态变被动语态的方法,(3) 把主动语态中的主语放在介词by之后作宾语, 将主格改为宾格。例如：All the people laughed at him.He was laughed at by all people.They make the bikes in the factory.The bikes are made by them in the factory.,(4) 双宾语动词变被动

12、语态可将其中的一个宾语变为主语， 另一个保留不动。 主动：I have given him the key. 被动：He has been given the key. 被动：The key has been given (to) him.,(5) 带复合宾语的动词变被动语态时, 只能将宾语变为主语, 原来的宾补保留不动， 改称主语补足语。 主动：I have asked her to help you. 被动：She has been asked to help you.,1.现在完成时被动语态肯定句 主语+has/ have been +P.P.+.(P.P.=动词的过去分词形式) Her

13、 motorbike has been stolen. 她的摩托车被盗了。 All the offices have been linked by computer. 所有的售票处由计算机联网工作。,2.现在完成时被动语态否定句 主语+has/ have +not+ been+ P.P.+. The task has not been finished yet. 任务尚未完成。 Many skilled workers have not been trained in the company. 这家公司并没有培养多少熟练工人。,3.现在完成时被动语态一般疑问句 句型1Has he(she, i

14、t,单数名词)+been+P.P.+.? Has a new computer been bought? 买了一台新电脑吗? Have they been sent abroad to study Eng-lish? 他们已经被派往国外学英语了吗?,4.现在完成时被动语态特殊疑问句疑问词+have (has)+主语+been+ P.P.+.?What has been bought by Tom?汤姆已经买了什么东西?Who have been helped by the new computer?谁已经得到这种新计算机的帮助?How many buildings have been buil

15、t in this school?这所学校已经建造了多少座大楼?Where has the car been repaired?这辆小汽车已经在哪里修理好了?,Practice,Turn the following into the Passive Voice.1. We have planted some trees around the lake.Some trees have been planted around the lake .,2. My father has locked the door.The door has been locked.3. Someone has tur

16、ned off the light.The light has been turned off.,4. We will hold the Olympic Games in Beijing in the year 2008.The Olympic Games will be held in Beijing in the year 2008. 5. They have rebuilt the bridge.The bridge has been rebuilt.,试分析： 1) 误 Many new buildings been built since 2000,正 Many new buildi

17、ngs havebeen built since 2000,析 谓语部分结构不全,时态部分不完整。,2) 误 Something bad has been happened to him,析 被动语态误用。happen为不及物动词，不及物动词没有被动语态。,正 Something bad has happened to him.,正 The door has opened of itself,析 有些动词如open, break, drop 等既可作及物动词，又可作不及物动词，若不强调谁是动作发出者，我们通常用主动语态。of itself意思是“自动地”。因此, 此句不可用被动语态。,3) 误

18、 The door has been opened of itself,4) 误 I have introduced to Mr Li,析 introduce为及物动词, I 是 introduce的承受者。,正 I have been introduced to Mr Li (by Mr Wang),Exercises,1. Both my brother work at the power station that _ been set up in my hometown.,has,2. That book is said _ have been _ (translate) into at

19、 least 20 foreign languages.,to/that,translated,8. Hi, Tom, you look tired. - Of course. I have been _ (paint) the living room all day.,painting,9. -Did you move into the new house?- No. The rooms have not been _ (paint) yet.,painted,12. You cant move in .The house is _ (paint).,being painted,15. -H

20、ow long ago _ these eggs _ (hatch)?-Perhaps 15 days.,were,hatched,改错,1. A personal computer has bought by us.A personal computer has been bought by us. 2. Many problems has been found with our new computer.Many problems have been found with our new computer.,3. A PC has been builded the way we wante

21、d.A PC has been built the way we wanted. 4. Our computer just has been joined to the internet.Our computer has just been joined to the internet.,5. The computer was used every day since we bought it.The computer has been used every day since we bought it. 6. A lot of e-mails had written on the compu

22、ter in the past 5 years.A lot of e-mails have been written on the computer in the past 5 years.,Put the Chinese into English to complete the sentences.1. You can see the house _ _ (未油漆) for years.2. How many workers _ (已派遣) to build the railway?,has not been,painted,have been sent,3. Why does Mary l

23、ook so unhappy? She _ (被嘲 笑) by her classmates. 4. It is said that the house _ _ (闯进了) by two thieves.,has been laughed at,broken into,has been,5. _ his views _ (受 到批判) by them? 6. The two pens _ _ (未被拿走) by him. 7. Where _ the television _ _ (已经修理了) ?,Have,been criticized,have not been,taken away,h

24、as,been,repaired,8. The price of a color TV set _ _ (降价了) again. 9. What _ (已被 译成) into many foreign languages?,been brought down,has,has been translated,A new personal computer has been bought by my friend. My computer has been repaired by the shop very quickly. My computer has just been attacked b

25、y an unknown virus. The problem has not been solved by us yet. The computers have been given away to a local school by the company. A kind of intelligent robot has been developed by the scientists.,Answer key for exercise 2 on page 21,Answer key for exercise 3 on page 21,The way the flowers have bee

26、n planted The way the grass has been cut The way the paths have been swept,The way your face has been washed The way your hair has been combed The way your shoes have been cleaned,Look at the way the table has been told Look at the way the glasses have been placed Look at the way the food has been cooked Youd better do them again.,Look at the way your bed has been made Look at the way your carpet has been swept Look at the way your shoes have been tidied I hope that youll come here again.,Thank you!,