1、The dictionary is well kept.这本词典被保存完好(不需要说明是谁保存的) 。(2)当我们需要强调动作承受者,而不是动作的执行者。These books were found in the 1920s.这些书是在二十世纪二十年代发现的。 (强调书被发现而不是强调由谁发现) 3.被动语态的结构:被动语态由“助动词be+及物动词的过去分词”构成,助动词be有人称、数的变化,其变化规则与be作为连系动词时一样。总结:动词的过去分词变法规则动词的过去分词:1)一般情况在动词原形后加-ed2)以不发音e结尾的加-d3)以辅音加y结尾的,去y变i加-ed4)以重读闭音节结尾,末尾只
2、有一个辅音字母, 先双写该辅音字母,再加-edwatch-watched practice-practicedstudy-studied stop-stopped不规则动词的过去分词:am is are been havehas had do done write written go gone 4.主动变被动的方法:People speak English in the world.主 谓 宾English is spoken by people in the world. 总结:主动语态被动语态宾语 主语谓语 be + 过去分词主语 by + 宾语其他 抄下来6 .各种时态的被动语态一般现
3、在时:am/is/are + 过去分词 I am called Jimmy. Football is played all over the world. The car is made in China. Knives are used for cutting things.一般过去时:was/were + 过去分词 A bank was robbed yesterday. The kite was made by them. The clothes were washed by my mother. Many houses were washed away in the flood.一般将
4、来时:will/shall be + 过去分词am/is/are going to be + 过去分词 The work will be finished in 2 days. We shall be given a warm welcome. I am going to be sent to America. The painting is going to be sold to Canada Trees are going to be planted by them tomorrow.现在进行时:am/is/are being + 过去分词 I am being asked some qu
5、estions now. A speech is being given in the hall. The clothes are being washed by Jane. 过去进行时:was/were being +过去分词 A letter was being written by her at 2pm yesterday. The meal was being cooked by my mother this time yesterday. The men were being questioned by the policeman.现在完成时:have/has been + 过去分词
6、 The work has been finished by them. The house has been built. His sheep have been found. The books have been kept since last week.含情态动词的被动语态:情态动词 + be + 过去分词 The trees should be watered at once. The books can be kept for 2 weeks. Our environment must be protected well. The homework must be handed i
7、n .各种时态的被动语态 一般现在时:S+ am/is /are + done(过去分词) 一般过去时:S+ was/were + done(过去分词) 一般将来时:S+ will + be + done (过去分词) 情态动词 :S+can/may/must/should+be+done (过去分词) 现在进行时:S+ is/am/are + being+ done(过去分词) 过去进行时:S+was/were being +done(过去分词) 现在完成时:S+ have/has + been+ done(过去分词) 7.被动语态的几种特殊形式1. 一些特殊结构的被动结构:(1)hear/
8、see sb. do sth. sb. be heard/seen to do sth.(2)make/let/have sb. do sth. sb. be made/let/had to do sth.感官动词为see, hear, watch,notice等,使役动词make, let, have后+sb. + do sth. 时,变被动语态时要加上“to” .2 .带有双宾语的主动语态变被动语态时, sb.或sth.都可做主语,注意sth.做主语时,要加to或for. My mother bought me a new bike. =I was bought a new bike by
9、 my mother. =A new bike was bought for me by my mother. Jack has given Tom a book. =A book has been given to Tom by Jack. =Tom has been given a book by Jack.Bob sent Kate a letter last year.=Kate was sent a letter by Bob last year.=A letter was sent to Kate by Bob last year.( tell、ask、bring、write、gi
10、ve 、send 、show 、teach 、pass、lend )toMum made me a new dress.=I was made a new dress by Mum.=A new dress was made for me by Mum.( Make、buy、cook、read ) for练一练1. Miss Deng teaches us English. We are taught English by Miss Deng English is taught to us by Miss Deng2.They saw the boy play basketball yeste
11、rday.The boy was seen to play basketball yesterday.3. The teacher made Tom recite the text.Tom was made to recite the text by the teacher.3. 动词短语变被动语态时,千万不要遗漏介词或副词。1.John turned on the radio.The radio was turned on.2.Grandma takes care of my sister.My sister is taken care of by Grandma!动词短语的被动语态take
12、 care of be taken care ofcut down be cut downlaugh at be laughed atlook after be looked after8高频考点突破1.用所给动词的正确形式填空2.Be动词的正确形式填空3.句型转换:4.英汉互译(完成句子)实战演练用所给动词的正确形式填空1. Too much water is drunk by him every day. (drink)2. Five apples are eaten by Tom every day. (eat)3. I am often helped by her. (help)4.
13、She is often hit by me. ( hit)用be的正确形式填空1. Many trees are planted by us every year.2.1000 trees were planted by us last year. 3. A knife is used to cut apples.4. The students are asked to have breakfast. 观察: be动词有 时态, 人称 和 数的变化. 英汉互译:1.她是由我帮助的. She is helped by me.2.她受到了帮助. She was helped.3.南方种水稻. R
14、ice is grown in the south.4.每天要用很多水. A lot of water is used every day.5. 山上种了很多树. Many trees are planted on the hill.句型转换:1. We dont speak Japanese at school.(被动语态) Japanese isnt spoken by us at school. 2. The desk is made by Tom.(主动语 态) Tom makes the desk. 3. Its made in China, isnt it ?(反意疑问句)4. T
15、he thief was caught , wasnt he ?(同上)5.Tom, be, by, the model plane, make (连词成句) The model plane was made by Tom. 9.权威中考预测( B )1.The river smells terrible. People must _ dirty thing into it.(南京市中考题) A be stopped to throw B be stopped from throwing C stop to throw D stop from throwing ( C )2.This book
16、 _ often _from the library.(北京市中考题)A arent take away B taken awayC isnt taken away D be taken away3.He was told (tell) to return his books to the library yesterday. (黄冈市中考题)4. Another man-made satellite was sent up into space by them last week (济南市中考题)They sent up another man-made satellite into space last week.(变主动语态)5. People there planted many trees last year. Many Trees were planted by people there last year. (青岛市中考题)6. They grow vegetables on the farm. The vegetables are grown on the farm(上海市中考题)
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