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1、 What is the Passive Voice?被动语态基本用法被动语态基本用法当句子的当句子的主语主语是动作的是动作的执行者执行者时，时，谓语的形式是谓语的形式是主动语态主动语态。当句子的。当句子的主语是动作的主语是动作的承受者承受者时，谓语要用时，谓语要用被动语态被动语态。被动语态由助动词。被动语态由助动词be+过去分词构成，时态通过过去分词构成，时态通过be表现出表现出来。来。 英语动词有两种语态： 主动语态 (the Active Voice) 被动语态(the Passive Voice)A. 主动语态表示主语是动作的主动语态表示主语是动作的执行者执行者。B. 被动语态表示主语
2、是动作的被动语态表示主语是动作的承受者承受者。We planted the tree.The tree was planted by us.WespeakEnglish.主语主语谓语谓语宾语宾语Englishisspokenbyus.主语主语谓语谓语宾语宾语主动语态主动语态被动语态被动语态Theycleanedtheclassroomyesterday.昨天我们打扫了教室。昨天我们打扫了教室。Theclassroomwascleanedbythemyesterday.昨天教室被我们打扫了。昨天教室被我们打扫了。 何时使用被动语态呢？何时使用被动语态呢？ 一、行为主体不明确，不必说出或者无法一、
3、行为主体不明确，不必说出或者无法说出动作的执行者时。例如：说出动作的执行者时。例如： Football is played all over the world 二、不易找到或根本就不可能找到动作的二、不易找到或根本就不可能找到动作的执行者时。例如：执行者时。例如： My bike was stolen我的自行车被盗了。我的自行车被盗了。 三、汉语中含有三、汉语中含有“据说据说”、“据悉据悉”、“有有人说人说”、“大家说大家说”等时。例如：等时。例如： It is said that one day he climbed to the top of a house and It was rep
4、orted that her mother died of SARS.众所周知众所周知 It is well known that 据推测说据推测说 It is supposed that 四、汉语中含有四、汉语中含有“被被”、“由由”等词时。等词时。例如：例如： Tina is asked to come by PaulTina是被是被Paul叫来的。叫来的。五、某些句子习惯上用被动语态。例如：五、某些句子习惯上用被动语态。例如： He was born in October，1989 the Structure is助动词助动词be+及物动词的过去分词及物动词的过去分词 (be+V.P.P
5、) 1.1.规则动词的过去分词：规则动词的过去分词：1)1)一般情况在动词原形后一般情况在动词原形后加加-ed-edwatch-watched2)2)以不发音以不发音e e结尾的加结尾的加-d-dpractice-practiced3)3)以辅音加以辅音加y y结尾的，去结尾的，去y y变变i i加加-ed-edstudy-studied4)4)以重读闭音节结尾，末尾只有一个辅音字母，以重读闭音节结尾，末尾只有一个辅音字母， 先双写该辅音字母，再加先双写该辅音字母，再加-ed-edstop-stopped2.2.不规则动词的过去分词不规则动词的过去分词：amisarebeenhavehasha
6、ddodonewritewrittengogone2)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。如：The desk is made of wood. The desks are made of wood.He is asked a question by the teacher.I was given a nice present by my friend yesterday.在改写中应注意：在改写中应注意：1.把把原原原原来的来的宾语宾语宾语宾语提到前面作被动语态的提到前面作被动语态的主语主语主语主语;
7、 ;2.把动词变成把动词变成“bebe+过去分词过去分词过去分词过去分词”;3.主动语态中的主动语态中的主语主语主语主语变为介词变为介词byby的的宾语宾语宾语宾语。典型题例典型题例例例1将下列句子改为被动语态。将下列句子改为被动语态。Wecleanourclassroomeveryday.Ourclassroomiscleaned(byus)everyday.主变被解题步骤主变被解题步骤:1.找宾语找宾语-即动作的承受即动作的承受者者Theymakeshoesinthatfactory.Shoes2.判断宾语的单复数判断宾语的单复数-即即be动词的单复数动词的单复数.arewere3.判断动
8、词的时态判断动词的时态-即即be动词的时态动词的时态.4.修改谓语的时态修改谓语的时态-即原句动词改为过去分即原句动词改为过去分词词made5.修改原句的主语修改原句的主语-即即by+主语主语.bythem.Tombrokethewindow.ThewindowwasbrokenbyTom.Tombrokethewindows.ThewindowswerebrokenbyTom.Hebrokethewindows.Thewindowswerebrokenbyhim.1.They make shoes in that factory.主语主语+及物动词及物动词+宾语宾语Shoes are mad
9、e (by them) in that factory.一般现在时：一般现在时：S(主语）主语）+am/is /are(not) +过去分词过去分词He rides the motorbike to his factory every day.The motorbike is ridden to his factory (by him) every day.We call the snowman Mr Strong.The snowman is called Mr Strong (by us).A computer is used in our class every day. compute
10、r, use, class2. They bought ten computers last year Ten computers were bought (by them) last year.一般过去时：一般过去时：S+was/were(not) +过去分词过去分词He bought his friend some fruits yesterday.His friend was bought some fruits (by him) yesterday.Some fruits were bought for his friend (by him) yesterday. bank, rob
11、yesterdayman-made satellite, send up, space, last yearA man-made satellite was sent up into space last year.The bank was robbed yesterday.3Amy can take good care of the cat The cat can be taken good care of by Amy.情态动词：情态动词：S+ can/may/must/should(not) + be+过去过去分词分词He can carry the basket easily.The
12、basket can be easily carried by him.They can sing some beautiful songs.Some beautiful songs can be sung by them.“We must put them in the fridge.”The dogs thought .“They must be put in the fridge (by us).”The dogs thought.4.They will finish the work in ten days.The work will be finished (by them)in t
13、en days.一般将来时：一般将来时：S+ will+ (not) be+过去分词过去分词They will have a show tomorrow.A show will be had (by them) tomorrow.send to, hospital, right now a talk, give , soonThey will be sent to the hospital right now.A talk will be given soon._ this house_(sell) by the King?The little girl is so prettythat sh
14、e _(admire) by all people when she grows up. Will be soldwill be admiredThe streets_(light) by electricity. I _(not invite)to tomorrows wedding. will be litwill/ shall not be invitedwill not be done 否定结构否定结构Dogs will not be allowed to enter your classroom. allowsmokingstadiumallowSmoking will not be
15、 allowed in the stadium.Rewrite the letter in future Passive Voicewill ( not) be doneThe Olympic Game will be held in London.Many things _(do) for the Game. 30 billion yuan _on the projects. An Olympic Village_for the athletes and some hotels_for the visitors to stay in. The roads _(make) wider and
16、better and trees and flowers _along the roads. The new Stadiums will be completed (complete) before 2012. Many volunteers_ (train) for the game. will be donewill be spentwill be builtwill be builtwill be madewill be plantedwill be trainedMany policemen _(send) keep order. During the 2012 Olympic Gam
17、e, the best athletes _(choose) to compete and they _(encourage) to do their best.will be sentwill be chosenwill be encourageddirty river polluted air (受污染的受污染的) crowded hospital(拥挤的）拥挤的） too many carstraffic jams (塞车）塞车）crowded classroom（拥挤的）拥挤的）few treesWhat will be done to make Ruian more beautiful and attractive (吸引人的）吸引人的）?will (not) be doneparking places, increasecars, decreasewater, cleantrees, plantschools, set uphospitals, buildroad, widen
