人教版英语九年级Unit3单元整体课件65458.ppt
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1、Unit3Unit3 Teenagers Teenagers should be allowed should be allowed to choose their own clothes.to choose their own clothes.Tuesday,Sep.13th,2005 Sunny by LilyPeriod 1-2English is spoken by many people.Da Changjin is watched on TV by many people.The tickets about heroes are sold out.Rice is planted i
2、n South China.He is said a good boy.Grammar被动语态被动语态 1.“语态语态”表示表示主语主语和和谓语动词谓语动词之间的关系。之间的关系。英语中有英语中有“两态两态”的说法,即的说法,即主动语态主动语态和和被被动语态动语态,本单元中反复出现的,本单元中反复出现的should be allowed 就是一个含有情态动词(就是一个含有情态动词(should)的)的被动语态。被动语态。先看几个基本概念先看几个基本概念 主语是动作的发出者为主语是动作的发出者为主动语态主动语态 主语是动作的接受者为主语是动作的接受者为被动语态被动语态 只有及物动词才有被动语态。
3、只有及物动词才有被动语态。2.被动语态的构成被动语态的构成 一般现在时的被动语态为:一般现在时的被动语态为:主主am/is/are(not)过去分词)过去分词 一般过去时的被动语态为:一般过去时的被动语态为:主主was/were 过去分词过去分词如:如:Butter is made from milk.This house was built 100 years ago.The office is cleaned every day.The office was cleaned yesterday.现在进行时被动语态的构成为现在进行时被动语态的构成为 主语主语is/am/are+being 过
4、去分词过去分词 再如:再如:My car is being repaired now.Some new houses are being built near the park.公园附近在建一些房子。公园附近在建一些房子。现在完成时被动语态的构成为现在完成时被动语态的构成为 主语主语have/has been 过去分词过去分词 如:如:My key has been stolen.My keys have been stolen.I am not going to the party,I havent been invited.含有情态动词的被动语态含有情态动词的被动语态 情态动词情态动词be
5、过去分词过去分词 A note had better be left to him.Teenagers should be allowed to wear their own clothes 这里我们列举了几个主要时态,那么其它时这里我们列举了几个主要时态,那么其它时态呢?态呢?一般将来时一般将来时 主语主语will be 过去分词过去分词 过去将来时过去将来时 主语主语would/should+be 过去分词过去分词 过去进行时过去进行时 主语主语was/were+being 过过去分词去分词 过去完成时过去完成时 主语主语had+been+过去分词过去分词 被动语态的被动语态的时态时态是由
6、是由be的时态决定的,的时态决定的,be是是什么时态,全句就是什么时态,什么时态,全句就是什么时态,be动词后面动词后面的过去分词不变。的过去分词不变。归纳:归纳:肯定句肯定句:主语:主语be+过去分词过去分词(by)否定句否定句:主语:主语be not 过去分词过去分词(by)一般疑问句一般疑问句:Be 主语过去分词主语过去分词(by)?特殊疑问句特殊疑问句:疑问词:疑问词be主语过去分主语过去分词词(by)3.被动语态的用法:被动语态的用法:(1)不知道或没有必要说明动作的执行者)不知道或没有必要说明动作的执行者是谁,不用是谁,不用by动作执行者短语动作执行者短语 Such books a
7、re written for children.这些书是为儿童写的。这些书是为儿童写的。I havent been told about it.没有人告诉我这件事没有人告诉我这件事(2)强调动作的承受者,这时应用)强调动作的承受者,这时应用by短语。短语。The cup was broken by David.(3)作客观说明时,常采用一种被动语态)作客观说明时,常采用一种被动语态句型句型 Its/was said/believed/reported/+that Its reported that about three hundred people were killed in this e
8、arthquake.据报道,这次地震中大约有三百人死亡。据报道,这次地震中大约有三百人死亡。4.主动语态变为被动语态主动语态变为被动语态 把主动语态的句子变为被动语态的方法是:把主动语态的句子变为被动语态的方法是:(1)把原句中的宾语变为主语)把原句中的宾语变为主语 (2)动词改为被动形式,即)动词改为被动形式,即be+过去分词过去分词 (3)原来的主语,如果需要的话,放在)原来的主语,如果需要的话,放在by后面,如果没必要,可省略。后面,如果没必要,可省略。注意事项:注意事项:主动语态变成被动语态应注意事项主动语态变成被动语态应注意事项 从主动语态到被动语态的过程中主语、谓从主动语态到被动语
9、态的过程中主语、谓语动词、宾语都发生变化。语动词、宾语都发生变化。注意主格与宾格的变化形式。注意主格与宾格的变化形式。注意主语的人称及数的变化对注意主语的人称及数的变化对be动词带来动词带来的影响。的影响。注意注意be动词的时态形式取决于原主动语态动词的时态形式取决于原主动语态的动词时态形式。的动词时态形式。5.被动语态的几种类型被动语态的几种类型 (1)有两个宾语的句子的被动语态(直接宾语,)有两个宾语的句子的被动语态(直接宾语,间接宾语)间接宾语)常见的接双宾语的动词有常见的接双宾语的动词有 通常这种句子可以改为以通常这种句子可以改为以“人人”当主语;和以当主语;和以“物物”当作主语的两种
10、被动语态。当作主语的两种被动语态。如:如:He gave me a book.I was given a book by him.(以(以I做主语)做主语)A book was given to me by Tom.(以物(以物book作主语)作主语)He teaches us English.We are taught English by him.(以人当主语)(以人当主语)English is taught us by him.(以物作主语)(以物作主语)(2)含有宾语补足语的句子的被动语态)含有宾语补足语的句子的被动语态 keep,make 三类的动词常常有宾语补足语,三类的动词常常有
11、宾语补足语,在被动语态中,宾语补足语位置不变。在被动语态中,宾语补足语位置不变。We keep food fresh in the fridge.主主 谓谓 宾宾 宾补宾补 Food is kept fresh in the fridge.I saw him go into the office building.He was seen to go into the office building.英语中有英语中有“十大动词十大动词”的说法,即的说法,即feel,hear,listen,have,make,let,look,watch,see,notice,这些词在主动句中,其后的动词不,这些
12、词在主动句中,其后的动词不定式不加定式不加to,但变被动句时必须加,但变被动句时必须加to.(3)含有短语的主动语态变被动语态)含有短语的主动语态变被动语态 不及物动词没有宾语,因此没有被动语态。不及物动词没有宾语,因此没有被动语态。但有的不及物动词后面加上介词及其他一些但有的不及物动词后面加上介词及其他一些词类构成短语动词之后,其作用相当于及物词类构成短语动词之后,其作用相当于及物动词,可以接宾语,因而也可以变为被动语动词,可以接宾语,因而也可以变为被动语态。在变成被动语态时,不能去掉构态。在变成被动语态时,不能去掉构成短语动词的介词或副词成短语动词的介词或副词They take good
13、care of my child.My child is taken good care of.他们把我的孩子照顾得很好。他们把我的孩子照顾得很好。I turned off the radio.The radio was turned off(by me).附:动词短语的被动语态附:动词短语的被动语态 take care of be taken care of cut down be cut down laugh at be laughed at look afterbe looked after下列这些短语本身即是被动语态的形式,不下列这些短语本身即是被动语态的形式,不需再加需再加by be
14、 covered with 用用覆盖着覆盖着 be interested in 对对感兴趣感兴趣 be surprised at 对对感到惊奇感到惊奇 be made of(from)用)用制造的制造的(4)由情态动词形成的被动语态)由情态动词形成的被动语态 含有情态动词的句子在变为被动语态时,在情态含有情态动词的句子在变为被动语态时,在情态动词后面加上动词后面加上be动词即可,其句型如下:动词即可,其句型如下:肯定句肯定句:主语情态动词(:主语情态动词(can,may,must)+be+过去分词过去分词 否定句否定句:主语情态动词:主语情态动词not+be+过去分词过去分词 疑问句疑问句:情
15、态动词(:情态动词(Can,May,Must)主语)主语be过去分词过去分词.如:如:We should allow teenagers to surf the Internet.Teenagers should be allowed to surf the Internet.Can you use it?你会使用它吗?你会使用它吗?Can it be used?6.不能用于被动语态的几种情况不能用于被动语态的几种情况 (1)当主动结构中的宾语是反身代词和相)当主动结构中的宾语是反身代词和相互代词时,不能改为被动语态。互代词时,不能改为被动语态。We often help each other
16、.我们常常互相帮助。我们常常互相帮助。(2)当谓语是表状态的及物动词时(如)当谓语是表状态的及物动词时(如have,like,take place,belong to)如:如:I like these flowers.我喜欢这些花。我喜欢这些花。I will have a meeting.不说不说A meeting will be had.应说应说A meeting will be held.填空(完成被动语态填空)填空(完成被动语态填空)1.They often clean their classroom after school.(改为被动语态)(改为被动语态)Their classroo
17、m _ often _ by them after school.2.Li Lei gave Tom a new pen last week.(同上)(同上)A new pen _ _ _ Tom last week.iscleanedwas given by3.A lot of people in China can speak English now.(同上)(同上)English _ _ _ by a lot of people in China now.4.I have learned English for about two years.(同上)(同上)English _ _ _
18、for about two years.5.They will publish these story-books next month.(同上)(同上)These story-books _ _ _ next month.can be spokenhas been learnedwill be published三三.用所给单词完成句子用所给单词完成句子 1.(the office/clean/yesterday)The office was cleaned yesterday.2.(the house/paint/last month)The house _ 3.(three people
19、/injure/in the accident)_ 4.(my bicycle/steal/a few days ago)_ 5.(when/this bridge/build?)_ was painted last month.Three people were injured in the accident.My bicycle was stolen a few days ago.When was this bridge built.6.(you/invite/to the party last week?)_ 7.(how/these windows/break?)_ 8.(I/not/
20、wake up/by the noise)_Were you invited to the party last week?How were these windows broken?I wasnt woken up by the noise.一一.被动语态专项练习:被动语态专项练习:选择填空。选择填空。1.In some countries,tea _ with milk and sugar.A.is serving B.is served C.serves D.served 2.Great changes _ in my hometown since 1980.A.have been ta
21、ken place B.took place C.have taken place D.were taken place BC3.The new type of car is going to _ in three years.A.turn out B.be turned out C.has turned out D.have been turned out4.The woman murdered her friend and _ to _.A.was sentenced,death B.sentencing,die C.sentenced,death D.sentenced,dieBA 5.
22、Do you like the skirt?It _ soft.A.is feeling B.felt C.feels D.is felt 6.Are you still here?You were here an hour ago.Who _ for?A.are you waiting B.did you wait C.were you waiting D.do you wait CA7._ to know Professor Zhang.A.He said B.I said C.He is said D.It says 8.I want to sit at the table near t
23、he window.Sorry,_ already.A.it took B.it takes C.it is taking D.it has been takenCD 9.The letter _ three days ago and it _ yesterday.A.had post,had arrived B.was posted,arrived C.posted,arrived D.had been posted,was arrived 10.He told me that the final examination _ next Thursday.A.is given B.will b
24、e given C.would have given D.would be givenBD11.Water _ into ice.A.will changed B.must be changed C.should change D.can be changed 12.Plays _ twice a month in that theatre.A.put on B.are put on C.was put on D.often put on DB 13.The birds _ fly away last Saturday.A.let to B.is let to C.was let D.were
25、 let to 14.A strange sound _ yesterday evening.A.was heard B.hears C.heard D.is heard 15.A beautiful bike _ him by his classmates.A.sent to B.will sent to C.was sent to D.will be sent for DAC16.Miss Chen _ just _ to speak at the meeting.A.has been asked B.has been asked C.Have been asked D.have been
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