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英语被动语态

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/06/30 21:37:27
英语被动语态
基本信息
  例如:Many people speak Chinese.
  谓语:speak的动作是由主语many people来执行的.
  例如:Chinese is spoken by many people. 中文Chinese是动词speak的承受者. 被例如中文常说:我被他打,这就是一种被动.但有时由于句子结构上的需要也要用被动,例如It is not unusual for workers in that region to be paid more than a month it 在句中作形式主语.而不定式to be paid more than a month是句子的逻辑主语.结合选项全句的意思是:“那个地方的工人一个多月后才得到工资是常有的事”.
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构成
  英语被动语态的构成通常是:“Be+Passive”.但“Get+Passive”也可以构成被动语态,用这种结构的句子侧重于动作的结果而不是动作本身.如: The man got hurt on his way home. 那个男人在回家的路上受伤了. How did the glass get broken? 杯子怎么破了? 著名学者周海中教授在论文《Get-Passive研究》中指出:Get+过去分词的被动语态是一种新兴的被动语态形式;相对来说它的使用还没有Be+过去分词构成的被动语态那么广泛,一般限于口语和非正式书面语;但它却有着用得愈来愈多的趋势,是一种生气蓬勃的语言现象.
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注意事项
  当主动语态要被改成被动的时候,我们把原句的宾语提前,作为改句的主语,主语后置,作为宾语.因此有一点要注意,不及物动词由于不加宾语,没有被动形式,但不及物动词如果与某些介词构成介词短语,可以用被动.例如The fire had been put out before the fireman arrived. Put是不及物动词,但put out是及物动词.
各种时态和句型如下:
  ①一般时(一般现在,一般过去,一般将来):am, is, are, was, were, is going to be , will be+done . ie. Once environmental damage is done, it takes many years for the system to recover. 本句的意思是:“环境一旦遭到破坏,需要多年时间才能恢复过来.”do作为及物动词有“引起,产生”的含义,do damage的意思是“造成破坏”.主语damage是及物动词do的动作对象,谓语应当用被动语态.同样的,还有,I will mend the machine.相当于The machine will be mended (by me).
  ②进行时(现在进行、过去进行):be+being+P.P. ie.The classroom is being cleaned.
  ③ 完成时(现在完成、过去完成、将来完成):have/has been + P.P.:例如The machine will have been repaired by 3 o’clock this afternoon.再如:My homework has been finished.
  ④ 其他时态 以此类推,可得到结果.
  ⑤ 情态动词的被动语态:主语 + 情态动词 + be动词 + 动词过去分词,例如Your teeth must be brushed.
  ⑥ 不定式的被动语态:to be done例:The no-shows have to be considered when deciding the rate of overbooking.(确定超过接待能力的预定时必须考虑预定了房间却来不了的客人.)
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主动语态变为被动的几个特殊情况
  ① 有些动词在主动结构中,后面接不带to的不定式,但如果改为被动,则需把省略的to加上,这类动词有 [let, make, have,help]和感官动词[feel,see,hear,watch,look at,listen to],如:The boss made my grandfather work 10hours a day.改成My grandfather was made to work for 10 hours a day.
  ② 含有宾语从句的主动结构变为被动,通常用it作为被动结构的先行主语,从句放在句子后面/也可采用另一种形式,这类动词有:know, say, believe, find, think, report等
  ③ 不是所有的主动句都可以变换成被动句,更不是所有的被动句都可以自由变换成主动句.虽然语法原则上允许主动和被动句的互相转换,但有的句子转换后会变成不通顺或不地道的英语句子.因此,在某些题目里,这也成为判断应该用主动还是用被动的依据.
  例:At 5:05 p.m. on Saturday 19th July , there was an accident at the junction of the Main Street and Panda Road when a boy was knocked down off his bicycle by a delivery van. The boy was sent to St. Maria Hospital where he was treated for shock and a broken arm.
  在这段文章里,a boy was knocked down off his bicycle by a delivery van这句被动句强调出读到文章的人最关心的事故的受害者.The boy was sent to St. Maria Hospital这句话则说明了孩子被送到医院的事实,至于是由谁(某个过路人?或肇事司机?)送的不重要.he was treated for shock and a broken arm这句被动句无须说出treat这个动作的发出者,因为在医院,伤病员自然由医务人员处理,无须罗嗦.这样,这段文章就重点突出,条理清楚了.
  ④ 有些动词可以有两个宾语,在用于被动结构时,可以把主动结构中的一个宾语变为主语,另一个宾语仍然保留在谓语后面.多是把间接宾语变为主语.这样句子自然些.直接宾语变为主语时,间接宾语要变为某个介词的宾语,介词to可以省略.如His father left him this house.改为This house was left (to) him by his father.
  ⑤ 有些动词虽为及物,但宾语并非是动作承受者,不能转换,这些动词有have, hold(容纳),suit, fit, lack, become(适合)contain, cost, last, mean, suffice(足够)等.
  ⑥ 当直接宾语为反身代词、相互代词或宾语前有指代主语的物主代词时不用被动,如I shook my head.我摇摇头.
  ⑦ 当宾语为同源宾语(与主句指同一人),动名词,动词不定式或一个从句时不用被动.如John enjoyed seeing the fil,.
  ⑧ 在一些固定说法中,有些名词和动词结合的固定说法,不能改We Chinese always keep our word.
  ⑨ 某些从不及物动词转化来的及物动词,直接宾语在表示动作的方式或效果时,这些动词在意思上起状语的作用,没有被动The girl kissed her boyfriend good night=The girl said good night to her boyfriend by kissing him.(这个女孩说了晚安并且亲了他的男朋友)
  ⑩ 表地点\处所\组织\长度\大小\数量\程度\抽象名词的词做宾语时不用被动.
  ⑪ 某些“不及物动词+介词”短语,walk into, listen to, sleep in, agree with, shake hands with, belong to, take part in, keep up with不能用被动.
  ⑫ 某些词用主动表被动:sell, miss, build, grow, look, smell, taste, sound, feel等
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被动语态的用法
  1.一般现在时的被动语态构成:is / am / are + 及物动词的过去分词
  Our classroom is cleaned everyday.
  I am asked to study hard.
  Knives are used for cutting things.
  2.一般过去时的被动语态构成:was / were + 及物动词的过去分词
  A new shop was built last year.
  Dinosaur eggs were laid long long ago.
  3.现在完成时的被动语态构成:has / have + been + 及物动词的过去分词
  This book has been translated into many languages.
  Many man-made satellites have been sent up into space by many countries.
  4.一般将来时的被动语态构成:will+ be + 及物动词的过去分词
  A new hospital will be built in our city.
  Many more trees will be planted next year.
  5.含有情态动词的被动语态构成:情态动词+ be + 及物动词的过去分词
  Young trees must be watered often.
  Your mistakes should be corrected right now.
  The door may be locked inside.
  Your homework can be handed in tomorrow.
  6.现在进行时的被动语态构成:am / is / are + being + 及物动词的过去分词
  Uncle Wang is mending my bike now.→
  My bike is being repaired by Tom now.
  They are planting trees over there. →
  Trees are being planted over there by them.
  7.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.
  8.过去将来时的被动语态:would + be + 及物动词的过去分词
  He said he would finish the work soon.
  He said the work would be finished soon by him.
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主动语态改被动语态
  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 is written by Bruce every week.
  2. Li Lei mended the broken bike this morning.→The broken bike was mended by Li Lei this morning.
  3. He has written two novels so far.→Two novels have been written by him so far.
  4. They will plant ten trees tomorrow.→Ten trees will be planted by them tomorrow.
  5. Lucy is writing a letter now.→A letter is being written by Lucy now.
  6. You must lock the door when you leave.→the door must be locked when you leave.
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使用被动语态的注意问题
  1.不及物动词无被动语态.
  What will happen in 100 years.
  The dinosaurs disappeared about 65 million years ago.
  2.有些动词用主动形式表示被动意义.
  This pen writes well.
  This new book sells well.
  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 something
  see somebody do something→somebody +be +seen to do something
  A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by.
  The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss.
  His mother gave him a present for his birthday.→ He was given a present by his mother for his birthday.
  4.如果是接双宾语的动词改为被动语态时,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.
  He showed me a ticket.→A ticket was shown to me by him.
  My father bought me a new bike. →A new bike was bought for me by my father.
  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 can't laugh at him. →He can’t be laughed at by us.
  He listens to the radio every day. →The radio is listened to by him every day.
  The nurse is taking care of the sick man. →The sick man is being taken care of by the nurse.
  6.宾语补足语的被动语态
  They call him Bob./He is called Bob. 
  7.谓语补助语态
  He is a bad boy.