现在完成时被动语态ppt课件

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1、冬天已经来冬天已经来了，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 away?away?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

2、和过去分词规则过去分词规则：1+ed2 e+d3 y i+ed 4 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+ed动词的过去式和动词的过去式和过去分不规则过去分不规则 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(simple present tense)的被动语态：的被动语态：S(主语）主语）+am/

3、is/are +done (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(simple past tense)的被动语态：的被动语态：S+was/were +done (过去分词过去分词)is sungare borrowedwas held复习各时态（复习各时态（tense)的被动语态的被动语态(passive voice)：Many buildings _(build)in my hometown in the future.4一般将一般将来时来时(future tense)的的被动语态：被动语

4、态：S +will be +donewill be built复习各时态（复习各时态（tense)的被动语态的被动语态(passive voice)：u现在完成时现在完成时(present perfect tense)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 have been changed quite a lot.2 First as a PC and then as a laptop I have been used in offices and homes since the 1970s.3 I never forg

5、et 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 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

6、语态：现在完成时的被动语态：the present perfect passive voiceS +have/has been+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.必须必须表示被动表示被动。I have been told about i

7、t many timesThe bridge has just been built1.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/has been+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 present perf

8、ect passive voice(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

9、by the new computer?How many buildings have been built in this school?The present perfect passive voice(疑问句）疑问句）: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by workersChange the sentences into the present perfect passive voice2 My friend has

10、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 sentences into the present perfect passive voiceThe buildings,destroy,earthquake The buildings have b

11、een destroyed by the earthquake.Exercise 2:Making up sentences using present perfect passive voice:machinereplacecomputer1The machine has been replaced by the computer.Making up sentences using present perfect passive voice:new bridge,build,in our city 2 A new bridge has been built in our city.many

12、trees,plant,along the road3 Many trees have been planted along the road4 My computer,just attack,an unknown virus.5 the problem,not,solve,we,yet6 the 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

13、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 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.

14、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 laughed atExercise 3:3.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 pri

15、ce 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 been brought downhas been translated 1.The floor in our classroom_(mop)every day2 Many accidents _(cause)by careless driving.3.I _(ask)to clean my room o

16、n 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 given with correct forms.is moppedare causedam askedwere takenwas boughtwas set up7 He _ (recognize)as

17、 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 the police?has been caught will be knocked downwill be recognizedwill be builtcomplete the sentences u

18、sing words given with correct forms.1 现在完成时的被动语态现在完成时的被动语态S+have/has been+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 +will be +done总总 结结Fill the word or expression for each of the following meanings fr

19、om 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 from place to place6 _ to work out the answer to a problem7 _to travel around an area to find o

20、ut about itcalculatemobilesolveexplore8 _ completely9 _ anyway10 _ activity of managing moneytotallyanyhowfinanceComplete the passage with the words below.artificial technology intelligent applications explore Web reality logicallyWhen my brother was in high school,he was very interested in computer

21、s 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 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