现在完成时被动语态.ppt

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1、冬天已经来了，春天还会远吗？,If winter has already come,can spring be far away?,1 help helped helped,V原形 过去式 过去分词,2 change changed changed,3 study studied studied,4 plan planned planned beg begged begged stop stopped stopped5 give gave given,动词的过去式和过去分词规则：1+ede+dy i+ed 重读闭音节，末尾只有一个辅音字母，双写辅音字母+ed动词的过去式和过去分不规则,复习：写

2、出下列动词的过去式和过去分词 help change study plan beg stop give,5,This song _ often _(sing)by childrenThese books _ often _(borrow)by girls.1 一般现在时(simple present tense)的被动语态：S(主语）+am/is/are+done(过去分词)The sports meeting _ _(hold)in our city last year.2一般过去时(simple past tense)的被动语态：S+was/were+done(过去分词),is sung,

3、are borrowed,was held,复习各时态（tense)的被动语态(passive voice)：,Many buildings _(build)in my hometown in the future.4一般将来时(future tense)的被动语态：,S+will be+done,will be built,复习各时态（tense)的被动语态(passive voice)：,现在完成时(present perfect tense)的被动语态：S+have/has+been+done(过去分词)1 Over time I have been changed quite a lo

4、t.2 First as a PC and then as a laptop I have been used in offices and homes since the 1970s.3 I never forget anything I have been told!4 Since the 1970s many new applications have been found for me.5 I have also been put into robots and used to make mobile phones6 I have even been put into space ro

5、ckets and sent to explore the Moon and Mars.,Discovering useful structures from the passage on p18:,现在完成时的被动语态：the present perfect passive voiceS+have/has been+done(过去分词),现在完成时的被动语态表达以下两个概念：1.说话时已经完成的动作或出现的结果，2.主语是行为动作的承受者。在使用现在完成时的被动语态时要注意以下两点：过去分词前有两个助动词 have/has 和 been。2.必须表示被动。I have been told a

6、bout it many timesThe bridge has just been built,1.现在完成时被动语态肯定句句型：主语+have/has been+过去分词 Her bike has been stolen.2.现在完成时被动语态否定句句型：主语+have/has+not+been+过去分词 The task has not been finished yet.Many skilled workers have not been trained in the company.,The present perfect passive voice(肯定句、否定句:,3.现在完成时

7、被动语态一般疑问句句型：Have/Has+主语+been+过去分词.?Has a new computer been bought?Have they been sent abroad to study English?4.现在完成时被动 语态特殊疑问句句型：疑问词+have/has+主语+been+过去分词.?Where has the car been repaired?Who have been helped by the new computer?How many buildings have been built in this school?,The present perfect

8、 passive voice(疑问句）:,Workers have built the house since two years ago.,since two years ago.,Exercise 1:Change the sentences into the present perfect passive voice,动作的执行者,动作的承受者,谓语动词,The house,has been built,by workers,1 We have received many letters since last week.,Many letters have been received(b

9、y us)since last week.,Change the sentences into the present perfect passive voice,2 My friend has bought a new personal computer.A new personal computer has been bought by my friend.3 The shop has repaired my computer very quickly.My computer has been repaired by the shop very quickly.,Change the se

10、ntences into the present perfect passive voice,The buildings,destroy,earthquake,The buildings have been destroyed by the earthquake.,Exercise 2:Making up sentences using present perfect passive voice:,machine,replace,computer,1The machine has been replaced by the computer.,Making up sentences using

11、present perfect passive voice:,new bridge,build,in our city,2 A new bridge has been built in our city.,many trees,plant,along the road,3 Many trees have been planted along the road,4 My computer,just attack,an unknown virus.5 the problem,not,solve,we,yet6 the computers,give away,to,a local school,th

12、e company,My computer has just been attacked by 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.,7 A kind of intelligent robot,develop,the scientists,A kind of intelligent robot has been developed by the scientists.,Mak

13、e up the sentences using the present perfect passive voice.,Put the Chinese into English to complete the sentences.1.How many workers _(send派遣)to build the railway?2.Why does Mary look so unhappy?She _(laugh at 嘲笑)by her classmates.,have been sent,has been laughed at,Exercise 3:,3.It is said that th

14、e house _ _(闯进了)by two thieves.4.The two pens _(未被拿走)by him.5.Where _ the television _(已经修理了)?6.The price of a color TV set _ _(降价了)again.7.What _(已被译成)into many foreign languages?,have not been taken away,has,been,repaired,broken into,has been,has,been brought down,has been translated,1.The floor i

15、n our classroom_(mop)every day2 Many accidents _(cause)by careless driving.3.I _(ask)to clean my room on Monday.4 We _(take)to that hospital by a taxi.5 A new coat _(buy)for me by my mother last week.6.Chinas first television station _(set up)by the workers in 1958,complete the sentences using words

16、 given with correct forms.,is mopped,are caused,am asked,were taken,was bought,was set up,7 He _(recognize)as soon as he arrives at this city8All those old buildings _(knock down)tomorrow.9A new village for the athletes and all the stadiums _(build)to the east of London.10.Do you know the thief _(ca

17、tch)by the police?,has been caught,will be knocked down,will be recognized,will be built,complete the sentences using words given with correct forms.,1 现在完成时的被动语态S+have/has been+done(过去分词)2 一般现在时的被动语态：S+am/is/are+done(过去分词)3一般过去时 的被动语态：S+was/were+done(过去分词)4 一般将来时的被动语态 S+will be+done,总 结,Learning ab

18、out language,Fill the word or expression for each of the following meanings from the text.,1 _ complete change in ways of thinking,working,etc2 _ connected computer system3 _ to make things easier,revolution,network,simplify,Learning about Laguage,4 _ to find the answer using numbers5 _able to be mo

19、ved easily from place to place6 _ to work out the answer to a problem7 _to travel around an area to find out about it,calculate,mobile,solve,explore,8 _ completely9 _ anyway10 _ activity of managing money,totally,anyhow,finance,Complete the passage with the words below.,artificial technology intelli

20、gent applications explore Web reality logically,When my brother was in high school,he 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 communicat

21、e with computer programmers all 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 go.,logically,applications,intelligent,reality,