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1、被动语态小结及练习一、被动语态的用法： 主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者 1. 一般现在时的被动语态：is / am / are + 及物动词的过去分词 Our classroom is cleaned everyday. 2. 一般过去时的被动语态：was / were + 及物动词的过去分词 A new shop was built last year. 3. 现在完成时的被动语态：has / have + been + 及物动词的过去分词 This book has been translated into many languages. 4. 过去完成时的
2、被动语态: had been +及物动词的过去分词 The dish had been eaten up when I got there. 5. 一般将来时的被动语态：will+ be + 及物动词的过去分词 A new hospital will be built in our city. 6. 含有情态动词的被动语态：情态动词+ be + 及物动词的过去分词 Young trees must be watered often. 7. 现在进行时的被动语态：am / is / are + being + 及物动词的过去分词 Uncle Wang is mending my bike now
3、. My bike is being repaired by Tom now.8. 不定式的被动语态：to + be + 及物动词的过去分词 There are two books to be read. There are twenty more trees to be planted.二、怎样把主动语态改成被动语态? 把主动语态改为被动语态非常简单，可以遵循以下几个步骤： 1. 先找出谓语动词； 2. 再找出谓语动词后的宾语； 3. 把宾语用作被动语态中的主语； 4. 注意人称、时态和数的变化。 例：1. Bruce writes a letter every week. A letter
4、 is written by Bruce every week.三、使用被动语态应注意的几个问题： 1. 不及物动词无被动语态。What will happen in 100 years. 2. 有些动词用主动形式表示被动意义。 This pen writes well. His novel sells well. 他的小说畅销。 3. 感官动词或使役动词使用省略to的动词不定式，主动语态中不带to ，但变为被动语态时，须加上to 。 例：make somebody do something somebody+ be +made to do something4. 如果是接双宾语的动词改为被动
5、语态时，直接宾语(物)作主语，那么动词后要用介词，这个介词是由与其搭配的动词决定 He gave me a book. A book was given to me by him. 5. 一些动词短语用于被动语态时，动词短语应当看作一个整体，而不能丢掉其中的介词或副词。 We cant laugh at him. He cant be laugh at by us.注意: 一. 以下不及物动词或动词短语无被动语态： appear, die ,disappear, end, fail, happen, last, lie, remain, break out, come true, fall a
6、sleep, take place.比较：rise, fall, happen是不及物动词；raise, seat是及物动词。 (错) The price has been risen.(对) The price has risen.(错) The price has raised. (对) The price has been raised. 二、不能用于被动语态的及物动词或动词短语： fit, marry, own, wish, cost, agree with, arrive at / in, succeed in, happen to, take part in, belong to三
7、、系动词无被动语态： appear, be, become, fall, feel, get, grow, keep, look, remain, seem, smell, sound, stay, taste, turn1) It sounds good.2) The steel feels cold3) The method proved (to be) effective.四、带同源宾语的及物动词(dream, live, life)，反身代词(oneself)，相互代词(each other)，不能用于被动语态： She dreamed a bad dream last night.H
8、e lives ap五、当宾语是不定式时，很少用于被动语态。 (对) She likes to swim. (错) To swim is liked by her.六、“be+过去分词”并不一定都是被动语态，有时是系表结构。 当“be+过去分词”表示动作时为被动语态，be是助动词，be后面的过去分词是主要动词，动作的对象是主语；当“be +过去分词”表示主语所处的状态时为系表结构，be是连系动词。be后面的过去分词是表语，相当于形容词。其区分办法如下： 1如果强调动作或句中有介词by引导出动作的执行者，该句一般为被动语态，否则为系表结构。例如: The glass is broken 玻璃杯碎
9、了。（系表结构） The glass was broken by the boy玻璃杯被那男孩打碎了。（被动语态） 2. 如果句中有地点、频率或时间状语时，一般为被动语态。如： The magazine is published in Shanghai这家杂志出版于上海。（被动语态） The door is locked 门锁着。（系表结构） The door has already/just been locked门已经/刚刚被锁上。（被动语态） The shop is opened这家商店开门了。（系表结构） The shop is opened at 8 a.m. everyday这家商
10、店每天上午八点开门。（被动语态七、用某些不及物动词表示被动意义，如 carry,cut,drive,iron,keep,lock,open,pick,read,sell,shut,tear,wash,wear,write等等。这类动词既能作及物动词，也能作不及物动词。作不及物动词时，形式上虽为主动，却表示被动意义。例如： Meat cuts easily.肉容易切。 The car drove easily.这车很容易开。 Your pen writes quite smoothly.你的笔写起来很滑。 八、某些感觉动词的主动态表示被动意义。例如： This shirt feels much
11、softer than that one.这件衬衫比那件衬衫摸起来柔软得多That book smells old.那本书有一股霉味。 These oranges taste nice.这些橙子味道很好。 以上这些动词都不能用进行时表示。若用进行时，则表示主动含义。比较：The child is smelling the paint.小孩正在闻油漆的气味。九、在need(want, require, deserve, etc.)doing句型中，动名词(doing)相当于动词不定式的被动式(to be done)，在意思上没有多大差别。例如： The garden needs watering
12、. The garden needs to be watered.花园需要浇水。 The problem requires studying with great care.The problem requires to be studied with great care.这个问题需要仔细研究。 These jobs want doing at once. These jobs want to be done at once.这些工作需要马上就做。 在某些性质形容词动词不定式的句型中，其动词不定式的主动形式表示被动意义。 (difficult, easy, hard, comfortable
13、, pleasant, fit, unfit, light , heavy, good, safe, dangerous) 例如： The question is easy to answer. 这问题容易回答。 That book is difficult to understand. 那本书难懂。 在这种句型结构中，动词不定式和主语的关系实际上是一种逻辑上的动宾关系，可以说是动词不定式作主语变换来的，相当于Its easy to answer the question.和Its difficult to understand that book.由于把动词宾语放在主语位置，所以和不定式的关
14、系构成一种被动关系。 被动语态考点揭秘. 被动语态的构成和用法【考点】被动语态的基本构成形式是“be+及物动词(短语)的过去分词”，其中be有人称、数和时态的变化。(巧记：被动语态be词变，过去分词跟后面)。其用法有以下几种：不知道或没有必要说明动作的执行者是谁；突出或强调动作的执行者；基于文章行文的需要。（巧记：谁做的动作不重要，说出谁做的没必要，动作承受者需强调，基于行文的需要，被动语态需用到）。【考例】1. More than two schools in the city next year. (2008年，广东汕头)A. are built B. were builtC. have
15、built D. will be built2. The watch I lost yesterday_ in the desk. (2008年，宁夏)A. has found B. found C. has been found D. is found【简析】1. D。schools与build存在动宾关系，应用被动语态，再根据时间状语next year可知选D。2. C。watch与find是动宾关系，应用被动语态，语境表达的是“找到了”的结果，用现在完成时的被动语态，选C。. 情态动词的被动语态【考点】含有情态动词的被动语态结构是“情态动词+be+及物动词(短语)的过去分词”。(巧记：情
16、态动词变被动，“情态动词+be+过分”需运用。)【考例】Do you believe there are aliens?Im afraid not. I dont think aliens in space. (2008年，湖北黄冈)A. can find B. can be found C. can be founded D. cant be found【简析】答案B。aliens与find是动宾关系，用被动语态，选B。同时应注意否定转移和found表示“建立”的含义。. 短语动词的被动语态【考点】短语动词是一个不可分割的整体，在变为被动语态时，不可丢掉构成短语动词的介词或副词。【考例】No
17、wadays the old should in our society. (2008年，甘肃兰州)A. be taken good care B. be taken good care ofC. be taken well care D. take good care of【简析】B。通过题干和句意分析可知老人是“被照顾”，应用被动语态，排除D；take good care of是固定短语，of不可省略，故选B。. 主动形式表达被动意义【考点】主动结构表达被动意义的情况有：1. open，lock，read，sell，clean，wash，cut，burn，drive等动词在强调主语的特点、
18、特征或性质时，常用主动形式表达被动意义，一般可以和well，easily等副词连用；2. look，sound，taste，feel, smell等系动词用主动形式表示被动意义；3. want/need/require +doing相当于want/need/require to be done，表不定式的被动结构；4. be worth doing中的doing表被动意义。【考例】1. Do you like this shirt?Yes. It very soft. (2008年，四川自贡)A. is feeling B. feels C. is felt2. Beef noodles in
19、 Lanzhou taste the best in China and . (2008年，甘肃兰州)A. are sold well B. sell well C. sell good D. are sold good【简析】1. B。feel是系动词，用形容词作表语，不用于被动语态，也不用于进行时。2. B。指某物卖得好不用被动语态，排除A，D；sell是动词，要用副词修饰，故选B。随学随练1. Will you go to Toms birthday party, Sally?Perhaps not. I . (2008年，山东威海)A. wasnt invited B. didnt i
20、nviteC. havent been invited yet D. hast invited2. Wont you go to the dinner tonight?I will if I .(2008年，福建漳州)A. will be invited B. have invitedC. am inviting D. am invited3. Old people must . (2008年，山东烟台)A. be spoken to politely B. speak to politeC. be spoken politely D. speak politeKey: 1. C 2. D 3. A