现在完成时被动语态ppt课件

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1、冬冬天已经来天已经来了，春天还会远吗？了，春天还会远吗？If winter If winter has has already already comecome,can spring be far can spring be far awayaway?1 help helped helpedV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动词的过去式和动词的过去式和

2、过去分词规则过去分词规则：1+ed2e+d3yi+ed4重读闭音节，重读闭音节，末尾只有一个末尾只有一个辅音字母，双辅音字母，双写辅音字母写辅音字母+ed5动词的过去式动词的过去式和过去分不规和过去分不规则则 复习：写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.1一般现在时一般现在时(simplepresenttense)的被动语态：的被动语态：S(主语）主语）+am/is/are+d

3、one(过去分词过去分词)The sports meeting _ _(hold)in our city last year.2一般过去一般过去时时(simplepasttense)的被动语态：的被动语态：S+was/were+done(过去分词过去分词)is sungare borrowedwasheld复习各时态（复习各时态（tense)的被动语态的被动语态(passivevoice)：Many buildings _(build)in my hometown in the future.4一般将一般将来时来时(futuretense)的的被动语态：被动语态：S+willbe+donewi

4、llbebuilt复习各时态（复习各时态（tense)的被动语态的被动语态(passivevoice)：u现在完成时现在完成时(presentperfecttense)的被动语态：的被动语态：S+have/has+been+done(过去分词过去分词)1 Over time I havebeenchanged quite a lot.2 First as a PC and then as a laptop I havebeenused in offices and homes since the 1970s.3 I never forget anything I havebeentold!4

5、Since the 1970s many new applications havebeenfound for me.5 I have also beenput into robots and used to make mobile phones6 I have even beenput into space rockets and sent to explore the Moon and Mars.Discovering useful structures from the passage on p18:u现在完成时的被动语态：现在完成时的被动语态：thepresentperfectpass

6、ivevoiceS+have/hasbeen+done(过去分词过去分词)现在完成时现在完成时的的被动被动语态语态表达以下两个表达以下两个概念：概念：1.说话时说话时已经完成已经完成的动作或出现的结果，的动作或出现的结果，2.主语是行为动作的是行为动作的承受者承受者。在使用现在完成时的被动语态时要注意以下两点：在使用现在完成时的被动语态时要注意以下两点：1.过去分词前有两个助动词过去分词前有两个助动词have/has和和been。2.2.必须必须表示被动表示被动。I have been told about it many timesThe bridge has just been built

7、1.现在完成时被动语态肯定句现在完成时被动语态肯定句句型：句型：主语主语+have/hasbeen+过去分词过去分词Her bike has been stolen.2.现在完成时被动语态否定句现在完成时被动语态否定句句型：句型：主语主语+have/has+not+been+过去分词过去分词 The task has not been finished yet.Many skilled workers have not been trained in the company.The presentperfectpassivevoice(肯定句、否肯定句、否定句定句:3.现在完成时被动语态现在完

8、成时被动语态一般疑问句一般疑问句句型：句型：Have/Has+主语主语+been+过去分词过去分词.?Has a new computer been bought?Have they been sent abroad to study English?4.现在完成时被动现在完成时被动语态语态特殊疑问句特殊疑问句句型：句型：疑问词疑问词+have/has+主语主语+been+过去分词过去分词.?Where has the car been repaired?Who have been helped by the new computer?How many buildings have been

9、built in this school?The presentperfectpassivevoice(疑问句）疑问句）:Workers have built the house since two years ago.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执行者动作的承受者动作的承受者谓语动词谓语动词The houseThe househashas beenbeen built built by

10、workers1 We have received many letters since last week.Many letters have been received(by us)since last week.Change the sentences into the present perfect passive voice2 My friend has bought a new personal computer.A new personal computer has been bought by my friend.3 The shop has repaired my compu

11、ter very quickly.My computer has been repaired by the shop very quickly.Change the sentences into the present perfect passive voiceThe buildings,destroy,earthquake The buildings have been destroyedbythe earthquake.Exercise 2:Making up sentences using presentperfectpassivevoice:machinereplacecomputer

12、1The machine has been replaced by the computer.Making up sentences using presentperfectpassivevoice:newbridge,build,inourcity2Anewbridgehasbeenbuiltinourcity.manytrees,plant,alongtheroad3Manytreeshavebeenplantedalongtheroad4 My computer,just attack,an unknown virus.5 the problem,not,solve,we,yet6 th

13、e computers,give away,to,a local school,the companyMy 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 scientistsA kind of intelligent robot has

14、been developed by the scientists.Make up the sentences using the present perfect passive voice.Put the Chinese into English to complete the sentences.1.How many workers _ (send派遣派遣)to build the railway?2.Why does Mary look so unhappy?She _(laugh at 嘲笑嘲笑)by her classmates.have been senthas been laugh

15、ed atExercise3:3.It is said that the house _ _(闯进了闯进了)by two thieves.4.The two pens _ (未被拿走未被拿走)by him.5.Where _ the television _(已经修理了已经修理了)?6.The price of a color TV set _ _(降价了降价了)again.7.What _(已被译成已被译成)into many foreign languages?have not been taken awayhasbeen repairedbroken intohas beenhas be

16、en brought downhas been translated 1.The floor in our classroom_(mop)every day2Manyaccidents_(cause)bycarelessdriving.3.I _(ask)tocleanmyroomonMonday.4 We_(take)tothathospitalbyataxi.5Anewcoat_(buy)formebymymotherlastweek.6.Chinasfirsttelevisionstation_(setup)bytheworkersin1958 completethesentencesu

17、singwordsgivenwithcorrectforms.ismoppedarecausedamaskedweretakenwasboughtwassetup7 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 _(catch)by t

18、he police?hasbeencaughtwillbeknockeddownwill be recognizedwill be builtcompletethesentencesusingwordsgivenwithcorrectforms.1现在完成时的被动语态现在完成时的被动语态S+have/hasbeen+done(过去分词过去分词)2一般现在时的被动语态：一般现在时的被动语态：S+am/is/are+done(过去分词过去分词)3一般过去时一般过去时的被动语态：的被动语态：S+was/were+done(过去分词过去分词)4一般将来时的被动语态一般将来时的被动语态S+willbe+

19、done总总结结LearningaboutlanguageFill 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 easierrevolutionnetworksimplify4 _ to find the answer using numbers5 _able to be moved easily f

20、rom place to place6 _ to work out the answer to a problem7 _to travel around an area to find out about itcalculatemobilesolveexplore8 _ completely9 _ anyway10 _ activity of managing moneytotallyanyhowfinanceComplete the passage with the words below.artificial technology intelligent applications expl

21、ore Web reality logicallyWhen 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 communicate with computer programm

22、ers all over the world.When he went to university he studied IT(information _)and developed a special in _ exploreWebtechnologyartificialintelligence.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.logicallyapplicationsintelligentreality