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1、 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 beggedstop stopped stopped5 give gave given动词的过去式和 过去分词规则 ：1 +ed2 e+d3 y i+ed 4 重读闭音节， 末尾只有一个 辅音字母，双 写辅音字母 +ed5 动词的过去式 和过去分不规 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 Th
2、is song by children These books 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 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 often sung are often borrowedwas held复习各时态（tense)的被动语态(passive voice) ： This work easil
3、y .3情态动词(Modal verb)的被动语态： S+ can/may/must/should + be + done Many buildings in my hometown. 4一般将来时(future tense)的被动语态： S + will be + donewill be built复习各时态（tense)的被动语态(passive voice) ：can bedoneu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 quit
4、e 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 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 phones 6 I have even been put
5、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： 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： 1.过去分词前有两个助动词 have / has 和 been。 2
6、. 必须表示被动。 I have been told about it many times The bridge has just been built1.现在完成时被动语态肯定句句型：主语+ have / has been +过去分词 Her motorbike 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 prese
7、nt perfect passive voice(肯定句、否 定句: 3.现在完成时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 b
8、uildings have been built in this school? The present perfect passive voice(疑问句）: WorkersWorkers have builthave built the housethe house since two years ago. 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承受者
9、谓语动词The houseThe househashas beenbeen built built by workers1 We1 We have receivedhave received many lettersmany letters since last week. since last week.Many lettersMany letters have been receivedhave been received since last week.since last week.Change the sentences into the present perfect passiv
10、e voice2 My friend has bought a new personal computer.A new personal computer has been bought by my friends 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, eart
11、hquake The buildings have been destroyed in 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
12、 has been built in our city many 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.
13、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 been developed by the scientistsMake up the sentences using the present perfect passive voice.Put the Ch
14、inese into English to complete the sentences. 1. How many workers _ (已派遣) to build the railway? 2. Why does Mary look so unhappy? She _ (被嘲笑) by her classmates. have been senthas been laughed atExercise 3 :3. It is said that the 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 awayhasbeen repairedbroken intohas beenhas been brought downhas been tr
