【备战高考】被动语态(完整版)

【备战高考】英语被动语态经典习题(含答案)一、单项选择被动语态1．—Have you heard of yesterday's gas explosion?—Yes. Only two of the 35 miners at the scene ________ to have made it out safely.A． have thought B ． are thoughtC． had thought D ． were thought【答案】 B【分析】【详解】观察时态语态。

句意：——你听闻昨天的瓦斯爆炸了吗?——是的，在现场的35 名矿工中，只有两名被以为安全获救。

此处指此刻只有 2 个人被以为安全获救，用一般此刻时的被动语态，应选 B.2．________scores of times, but Derek still couldn’ t understand how to use past participle in a concrete situation.A． Having explained B．Having been explainedC． Though it was explained D． It was explained【答案】D【分析】由于有连词but ，前方应是完好的句子，清除A,B; Though不可以和but同时使用，所以选D。

3．(桂林部分学校高三质量检测)The wet weather will continue tomorrow， when a coldfront________to arrive.A． will be expected C． expects B．is expecting D． is expected【答案】【分析】D观察动词的时态和语态。

句意为：估计将有一股冷锋到来，所以湿润的天气明日将会继续。

a cold front 与 expect 之间是逻辑上的动宾关系， expect 是发生在此刻的动作，要用一般此刻时，应选 D 项。

【备战高考】英语被动语态用法详解一、单项选择被动语态1．The old man was weak after the accident; so he ______ carefully by us.A． must be take care of B． must take care ofC． must look after D ． must be looked after【答案】 D【分析】【详解】考察含神态动词的被动语态。

句意：事故发生后，老人很衰弱；因此他一定由我们认真照顾。

固定词组： take care of/ looked after 照料“”；句子主语 he 和谓语动词之间是被动关系，因此这里是含神态动词的被动语态，“神态动词 +be +过去分词”。

应选 D。

2．—The manager has come back from his business trip. He is asking you for the report.— Oh， my god ! I haven’ t finished it yet. But he ________ back at the company tomorrow.A． was expected B．will expectC． expected D． will be expected【答案】 A【分析】试题剖析：考察时态和语态。

句意：——经理出差回来了。

他正在问你要报告。

——哦，天哪，我还没达成呢。

可是原来估计他明日回企业。

依据语境，是过去料想他明日会回来，并且经理是被估计，故用一般过去时的被动。

应选A。

【名师点睛】时态的考察要依据本句的句意，这句话必定要依据上下文判断动作发生的时间，要仔细领会语境。

还要注意时态语态。

考点：考察时态和语态3．—Will Uncle Peterson come to my birthday party tomorrow?—Pity he ______ to Zimbabwe as a volunteer teacher.A． was sent B． has been sentC． had been sent D． would be sent【答案】 B【分析】考察时态和语态。

考点11 动词的被动语态考点详解高考频度：★★★★★【命题解读】动词的语态是历年高考的重点，也是高考的必考点。

高考主要以语法填空、短文改错等形式对被动语态这一考点进行考查，动词的语态在语法填空和短文改错中是必考点。

【命题预测】预计2021年高考语态仍将是高考考查的重点和难点，考查形式仍以语法填空和短文改错题型为主，很可能会与动词的时态及其他的语法点结合起来进行考查。

【复习建议】1. 掌握被动语态的基本时态变化；2. 掌握被动语态的特殊结构形式；3. 掌握不能用被动语态的几种情况；4. 掌握主动形式表示被动意义的情况。

知识网络被动语态的构成序号被动语态的否定式是在第一个助动词或情态动词后加not，短语动词的被动态不可漏掉其中介副词。

固定结构be going to, used to, have to, had better变为被动态时，只需将其后的动词变为被动态。

如：Trees should not be planted in sum mer. 夏天不应该种树。

The boy was made fun of by his classmates.这个男孩被他的同学取笑。

Newspapers used to be sent here by the little girl. 报纸过去常被小女孩送到这里。

汉语有一类句子不出现主语，在英语中一般可用被动结构表示。

如：It is believed that…It is generally considered that…It is said that…It is well known that…It must be pointed out that…It is supposed that…It is reported that…It must be admitted that…It is hoped that…下面主动形式常表示被动意义：如：The window wants/needs/requires repairing. The book is worth reading twice.The door won’t shut. / The play won’t act.The clothes washes well. / The book sells well.The dish tastes delicious. / Water feels very cold.考向一被动语态的基本时态变化被动语态通常为十种时态的被动形式，被动语态由be＋过去分词构成，be随时态的变化而变化。

【备战高考】英语语法被动语态归纳总结一、单项选择被动语态1．8 students and 2 teachers at Santa Fe High School by a 17-year-student armed with a shotgun and a pistol. This is one of the many gun-related tragedies that have happened in the last 2 years.A．killed B．were killedC．have killed D．have been killed【答案】B【解析】考查被动语态。

句意：在圣塔菲高中，一名17岁的学生手持猎枪和一把手枪，在圣塔菲高中杀害了8名学生和2名教师。

8 students and 2 teachers是句子主语，复数形式，和kill之间是被动关系，再根据in the last 2 years.可知这是最近两年发生的与枪有关的事故之一，可知这是在讲过去的事情，所以句子用一般过去时态的被动语态，故答案为B。

2．—Have you heard about that school bus accident?—Yes, fortunately all on board including the driver ________.A．were saved B．was savedC．have saved D．has been saved【答案】A【解析】考查动词时态和语态。

句意为：——你有没有听说那起校车事故？——嗯，幸运的是，车上所有的人包括司机都获救了。

由题干中的Have you heard...可知，事故发生在过去，且all 为主语，和save逻辑上构成被动关系，故用一般过去时的被动语态，故答案A符合语境。

3．—Are we about to having dinner?—Yes, it ________ in the dining room.A．serve B．is servingC．is being served D．has been serving【答案】C【解析】考查时态和语态。

（完整版）被动语态讲解及练习（附答案）被动语态讲解一、被动语态的构成形式1. 被动语态的基本时态变化被动语态通常为十种时态的被动形式, 被动语态由be＋过去分词构成，be随时态的变化而变化。

以do为例，各种时态的被动语态形式为：1) am/is/are +done (过去分词) 一般现在时例Visitors are requested not to touch the exhibits.2）has /have been done 现在完成时例All the preparations for the task have been completed, and we're ready to start.3）am/is /are being done 现在进行时例A new cinema is being built here．4）was/were done 一般过去时例I was given ten minutes to decide whether I should reject the offer.5）had been done 过去完成时例By the end of last year, another new gymnasium had been completed in Beijing.6）was/were being done 过去进行时例A meeting was being held when I was there.7）shall/will be done 一般将来时例Hundreds of jobs will be lost if the factory closes.8）should/would be done 过去将来时例The news would be sent to the soldier's mother as soon as it arrived.9）shall/will have been done 将来完成时（少用）例The project will have been completed before July.2. 被动语态的特殊结构形式1)带情态动词的被动结构。

【备战高考】被动语态分类详解一、单项选择被动语态1．More than one worker ______ dismissed.A． have been B． areC． has been D． has【答案】 C【分析】【详解】考察主谓一致和语态。

句意：不只一个工人被辞退了。

假如主语由"many a,more than one＋单数名词 " 组成，只管从意义上看是复数，但谓语动词仍用单数形式，故清除 A 和 B，“工人”和“辞退”之间是被动关系，用被动语态，应选C。

2．—Are we about to having dinner?—Yes, it ________ in the dining room.A． serve B． is servingC． is being served D． has been serving【答案】 C【分析】考察时态和语态。

句意：——我们准备去吃饭吗？——是的，饭菜正在餐厅被供应。

it 是指饭菜，和动作serve 之间是被动关系，且动作正在进行，四个选项中只有 C 项是此刻进行时的被动语态，应选C。

3．The affairs of each country should be by its own people.A． elected B． settledC． developed D．contained【答案】 Bsettle ，【分析】考察动词。

句意为：各国事务应由自己国家的人们解决。

由句意可知，选意为“解决”。

elect 选举； develop 发展； contain 包含，控制。

应选B。

4．—The window is dirty.—I know. It ________ for weeks.A． hasn ’ t cleaned B．didn’ t cleanC． wasn’ t cleaned D． hasn ’ t been cleaned【答案】D【分析】【详解】此题考察时态和语态。

【备战高考】被动语态考点易错点的总结一、单项选择被动语态1．Louis Cha (金庸) passed away. As for his achievement, there is such a comment, “He ______ the Nobel Prize for Literature with his written works translated into English.”A．could have been rewarded B．must have been rewardedC．should be rewarded D．need have been rewarded【答案】A【解析】【详解】考查情态动词+have done用法。

句意：金庸去世了，至于他的成就，有这样的评论：他本能获得诺贝尔文学奖用他的被翻译成了英语的著作。

A. could have been rewarded本可以被授予；B. must have been rewarded一定被授予；C. should be rewarded应该被授予；D. need have been rewarded本必要被授予。

根据语境，A选项正确。

【点睛】could have done可用于肯定句、疑问句和否定句。

用于肯定句既可以表示过去能够做而实际未做，有惋惜、遗憾或委婉批评之意，通常译为“本来可以”“本来能”，也可以表示对过去动作的推测，常可译为“可能（已经)”。

本句表达金庸本能获得诺贝尔文学奖，但却没有获得的惋惜。

故A选项正确。

2．It is the third time so far that such a festival ________ in my hometown.A．is held B．has been heldC．will be held D．had been held【答案】B【解析】试题分析：考查句式用法。

This is the first (second, third…) time +that从句，这是第一（二，三…）次…。

（完整版）被动语态讲解及练习（附答案）.doc被动语态讲解一、被动语态的构成形式1.被动语态的基本时态变化被动语态通常为十种时态的被动形式, 被动语态由be＋过去分词构成，be 随时态的变化而变化。

以do 为例，各种时态的被动语态形式为：1) am/is/are +done (过去分词 ) 一般现在时例Visitors are requested not to touch the exhibits.2） has /have been done现在完成时例All the preparations for the task have been completed, and we're ready to start.3） am/is /are being done 现在进行时例A new cinema is being built here．4） was/were done 一般过去时例I was given ten minutes to decide whether I should reject the offer.5） had been done 过去完成时例By the end of last year, another new gymnasium had been completed in Beijing.6） was/were being done 过去进行时例A meeting was being held when I was there.7） shall/will be done 一般将来时例Hundreds of jobs will be lost if the factory closes.8） should/would be done 过去将来时例The news would be sent to the soldier's mother as soon as it arrived.9） shall/will have been done 将来完成时（少用）例The project will have been completed before July.2.被动语态的特殊结构形式1)带情态动词的被动结构。

高考必备英语被动语态技巧全解及练习题(含答案)一、单项选择被动语态1．It’s reported that China will not buy the Euro debt until some thorough research . A．has been done B．will have been doneC．will be done D．had been done【答案】A【解析】试题分析：考查时态及语态。

句意：据报道，直到一些彻底的调查研究被做出以后，中国才会买进欧盟债务，含有not ..until的状语从句，主句一般将来，从句表示已经做过研究之后，所以用完成时表示，研究与做之间又是被动关系，由此综合两者，A正确。

考点：考查时态及语态2．I intend to buy that kind of clothes because I ____ that they _____ well.A．have told; wash B．have been told; washC．was told; washed D．have been told; are washed【答案】B【解析】考察时态。

根据题意，我想买那种衣服，因为有人告诉过我他们洗起来不错。

可知从句内容为过去已经完成的动作，故用过去完成时态。

他们洗起来不错则是一个客观存在的事实，过去存在，现在及将来都会存在，故用一般现在时态。

选B。

3．To my ________， he was not a little ________ at the news that he had won the first prize in the English speech contest, for he thought that he didn't perform so well. A．astonishment；astonishingB．astonished；astonishingC．astonishment；astonishedD．astonish；astonishment【答案】C【解析】考查astonish相关短语的用法。

考点09被动语态（核心考点精讲精练）1. 高考真题考点分布考点题型谓语动词时态、被动语态、主谓一致语法填空年份试卷类型考点考向20242024·新课标I卷____60_walks___ (walk) 一般现在时与主谓一致2024·新课标II卷___38_were_(be);___41_be built__ (build)一般过去时与主谓一致；被动语态2024·全国乙卷__44_were__ (be)一般过去时与主谓一致2024·全国甲卷2024·年浙江1月__42_have started___(start)现在完成时与主谓一致20232023·新课标I卷/2023·新课标II卷I ___65_ wished__ (wish)一般过去时2023·全国乙卷was amazed;means;一般过去时与主谓一致，一般现在时与主谓一致2023·全国甲卷/2023·年北京卷11.would throw13. had arrivedhas established一般将来时；过去完成时；现在完成时与主谓一致2023·年浙江1月featured一般过去时20222022·新课标I卷were;is designed一般过去时与主谓一致；一般现在时被动语态与主谓一致2022·新课标II卷42.was fixing43. threw过去进行时与主谓一致；一般过去时2022·全国乙卷addressed一般过去时2022·全国甲卷has walked现在完成时与主谓一致2022·年北京卷caught;has;has increased一般过去时；一般现在时与主谓一致；现在完成时与主谓一致2022·年浙江1月is viewed或has beenviewedare；have promised一般现在时被动语态与主谓一致；主谓一致；现在完成时被动语态与主谓一致2. 命题规律及备考策略【命题规律】近3年新高考卷对于被动语态的考查共计3次，主要考查：1.一般现在时的被动语态；2.一般过去时的被动语态；3. 现在完成时的被动语态。

【备战高考】英语语法被动语态概括总结一、单项选择被动语态1．This is one of the highest buildings that _____ in our city recently.A． has been built B． buildC． have been built D ．have built【答案】 C【分析】【详解】观察此刻达成时态的被动语态。

句意：这是近来我们城市建设的众多最高的建筑中的一座。

此处the highest buildings 是先行词，指物，复数形式，且和build 之间是被动关系，再依据 recently 所以句子用此刻达成时态的被动语态，应选C。

2．Our teacher keeps telling us that the future to the well-educated.A． belonging B． belongs C． is belonging 【答案】 B【分析】观察短语： belong to 属于，没有进行时态没有被动语态。

故答案选D． is belonged B。

3．The two nurses ________ 100 ， 000 yuan by the police but donated it to victims of the explosion.A．rewarded B．would be rewardedC． have been rewarded D． had been rewarded【答案】 D【分析】试题剖析：句意：这两位护士被警方奖励100， 000 元，可是她们把钱捐给了爆炸事故的受害者。

依据“but donated it to victims of the explosion.，可知“她”们把钱捐给了爆炸事故的受害者”已经是发生在过去的事情，而“两位护士被警方奖励100，000 元”是发生在过去的过去，故用过去达成时，且“两位护士”和“奖励”是被动关系，故用被动语态，选D。

高考语法被动语态高考英语语法被动语态被动语态在英语中是一个重要的语法结构，也是高考中常考的一部分。

掌握被动语态的用法和构成规则对于提高写作和阅读理解的能力非常重要。

本文将为大家详细介绍高考英语语法被动语态的相关知识点，帮助大家更好地应对高考。

一、被动语态的构成规则被动语态由不及物动词和及物动词的宾语加上be动词的各种时态构成。

be动词的时态根据主语的时态来决定。

被动语态的构成公式为：be(各种时态)+过去分词。

1. 现在时态：am/is/are(被动语态) + 过去分词例如：The letter is written by Mary.（这封信是玛丽写的）2. 过去时态：was/were(被动语态) + 过去分词例如：The car was repaired by the mechanic.（这辆车是机修工修的）3. 现在完成时态：have/has(被动语态) + been + 过去分词例如：The book has been read by many people.（这本书已经被很多人读过了）4. 过去完成时态：had(被动语态) + been + 过去分词例如：The work had been finished when he arrived.（他到达时工作已经完成了）5. 将来时态：will be(被动语态) + 过去分词例如：The report will be presented tomorrow.（这份报告将于明天呈现）二、被动语态的用法被动语态主要用于以下几个方面：1. 强调行为的承受者例如：The concert was attended by thousands of people.（成千上万人参加了这场音乐会）2. 不知道或不提及行为的执行者例如：The bike was stolen last night.（这辆自行车昨晚被偷了）3. 对行为的执行者表示无关或不重要例如：The window was broken by accident.（窗户不小心被打破了）4. 当使用主动语态时没有行为的执行者例如：English is spoken all over the world.（英语在全世界使用）（注意：这个句法中没有明确的执行者，因为人们世界各地都在使用英语）三、被动语态的注意事项在使用被动语态时，我们需要注意以下几个问题：1. be动词的时态根据主语的情况来确定例如：The book is being read by students.（这本书正在被学生们读）2. 不及物动词无被动语态，无法构成被动语态的动词需要转换为及物动词或使用其他表达方式。

【备战高考】英语被动语态用法总结(完整)一、单项选择被动语态1．More than one worker ______ dismissed.A．have been B．areC．has been D．has【答案】C【解析】【详解】考查主谓一致和语态。

句意：不止一个工人被解雇了。

如果主语由"many a,more than one＋单数名词"构成，尽管从意义上看是复数，但谓语动词仍用单数形式，故排除A和B，“工人”和“解雇”之间是被动关系，用被动语态，故选C。

2．Quantities of soil ________ in the area, resulting in the increasing number of natural disasters. A．is washed away B．have washed awayC．have washed away D．have been washed away【答案】D【解析】考查时态和语态。

句意：在这个地区大量的土壤被冲走了，结果导致自然灾害数量增加。

句中soil和wash away是被动关系，此处指土壤已经被冲走并对现在造成影响，故要用现在完成时，要用现在完成时的被动语态，故选D。

3．When I got to his house, I found that the walls _____ .A．are being painted B．are paintingC．were being painted D．were painting【答案】C【解析】考查过去进行时态的被动语态。

句意：当我到达他家的时候，我发现墙正在被粉刷。

根据句意可知用过去进行时态的被动语态，故选C。

4．It’s r eported that China will not buy the Euro debt until some thorough research . A．has been done B．will have been doneC．will be done D．had been done【答案】A【解析】试题分析：考查时态及语态。

人教版高考被动语态(完整版)一、选择题1．—Hello, Helen!—Oh, Jim! What a surprise! I ___________you were still on business in Shanghai.A．told B．tell C．will be told D．was told2．一My father's office is in the east of the city. He spends two hours driving to and from work every day.一It will be easier for him when the road ________ next month.A．repairs B．is repaired C．will repair D．will be repaired 3．—Do you have any problems if you _________ this job?—Well, I'm thinking about the working day.A．offer B．are offered C．will offer D．will be offered 4．The superheroes, such as Spider Man and Iron Man, ________ by Stan Lee when he was alive. A．are created B．have been created C．will be created D．were created5．In Switzerland, things like glass and plastic ______ into different groups and then recycled. A．separate B．separated C．are separated D．is separated 6．—Excuse me, Mum. When can we have dinner?—Not until it ___________in half an hour.A．is prepared B．has been preparedC．will be prepared D．was prepared7．--Can Mr. King spare some time for the charity show?--If he ___, he will try his best to make it.A．will be invited B．is invitedC．invites D．invited8．The last team of medical workers ________ a warm welcome when returning to Nanjing from Wuhan this April.A．was giving B．was given C．has given D．gave9．At last, the girl was made _________ to music and began to do her homework.A．stop listening B．to stop to listenC．to stop listening D．stop to listen10．—My father works in Chengdu. It takes him much time to go home every month.—Don’t worry. It’ll be easier and quicker after Taizhou High-Speed Rail Station _______. A．builds B．is built C．will build D．will be built 11．—Are you going to Sam’s birthday party the day after tomorrow?—I’m not sure. I will go with you if I ______.A．will invite B．invite C．will be invited D．am invited 12．—Have you heard of the pop song Little Apple?—Yes. It________every evening when aged people do square dancing downstairs.A．plays B．is played C．was played D．played13．Many travel vouchers (旅游优惠券) ________ to attract more and more tourists next five months.A．will send B．will be sent C．are sent D．send 14．—Excuse me, sir. When can we drive on the highway? —Not until it ________next week. A．is built B．builds C．will build D．will be built 15．When the natural park _____ ，it will be a good place for people to play and relax. A．has completed B．will complete C．is completed D．will be completed 16．— Soccer first started in England in the 12th century, didn't it?— Yes, but now it ________all over the world.A．plays B．is played C．is playing D．has played 17．Last March, thousands of trees ______ along the street to make our city more beautiful. A．were planted B．were planting C．would plant D．planted18．—I saw several boxes of books at the gate of our school just now.—They ________ to children in poor areas.A．were sent B．are sent C．will be sent D．were being sent 19．—Excuse me, when can we play basketball in the playground?— Not until the playground ________ next week.A．repairs B．will be repaired C．is repaired D．will repair 20．— How is the case going on?—I’ve no idea. It at the meeting right away.A．discussed B．will discuss C．is discussed D．will be discussed 21．When waste from daily life ________, people won’t mix some resources with wet waste. A．separated B．is separated C．separates D．will be separated 22．It’s known that Chinese by more and more people in the world now. A．speak B．was spoken C．spoke D．is spoken 23．After the Chinese spacecraft’s landing on Mars ________ on May 16, 2021, we felt even prouder of our country.A．announces B．announced C．were announced D．was announced 24．It is reported that a total of 71,000 5G base stations ________ in Jiangsu Province in 2020. A．build B．built C．were built D．have built25．Some free health service_________for the elderly in the near future.A．provides B．is providedC．will provide D．will be provided26．With the development of 5G technology, more self-driving cars ________ in the near future. A．use B．are used C．will use D．will be used 27．— When shall we hand in our book review on The Kite Runner?— As soon as it ________.A．completes B．is completed C．will complete D．will be completed 28．—Great news! Zhurong has landed on Mars successfully.—It ________ into space by Long March 5 rocket on July 23, 2020.A．is sent B．was sent C．sent D．was sending29．Finally both sides have reached an agreement, but the details later.A．are discussing B．are discussed C．will discuss D．will be discussed 30．— Mum, may I watch TV for a while?— As soon as your homework _______ you can.A．finishes B．will finish C．is finished D．will be finished 31．—Mr Yang, when shall we leave school this afternoon?—Not until the classroom _______.A．has cleaned B．will clean C．will be cleaned D．is cleaned 32．The film Hi! Mom has received high praise since it ________ on screen on February 12. A．was put B．is put C．has been put D．will be put 33．— I hope to travel in space one day.—That’s not just a dream. It’s reported the first space hotel in the near future. A．builds B．is built C．will build D．will be built 34．When he went abroad for further study, his parents and children _______ by his wife. A．are well taken care of B．took good care ofC．were taken good care D．were taken good care of35．The 2nd Games of Qinhuai District ________ on March 28, 2021 to make more people realize the importance of health.A．held B．has held C．is held D．was held36．A great number of volunteers ________ for the 2022 Beijing Winter Olympic Games. A．will need B．are needed C．will be needed D．were needed 37．—A great deal of money ________ at the charity show!—Yes, but the cost of living ________ a lot, so we still need to do a lot for the children in poor areas.A．raised; rose B．raised; has risen C．was raised; rose D．was raised; has risen38．Now waste from daily life in the city of Suzhou ________ to be separated into four different groups.A．is requiring B．is required C．was required D．required39．On Jack's birthday, many gifts and love ________ to him.A．was given B．is given C．are given D．were given 40．Your order ________ if you fail to pay for it in 15 minutes on Meituan.A．cancels B．is cancelled C．will cancel D．will be cancelled 【参考答案】一、选择题1．D【详解】句意：——你好，海伦！——哦，吉姆！真是个惊喜！我听说你还在上海出差。

【备战高考】被动语态易错易混点一、单项选择被动语态1．—Have you heard of yesterday's gas explosion?—Yes. Only two of the 35 miners at the scene ________ to have made it out safely.A．have thought B．are thoughtC．had thought D．were thought【答案】B【解析】【详解】考查时态语态。

句意：——你听说昨天的瓦斯爆炸了吗?——是的，在现场的35名矿工中，只有两名被认为安全获救。

此处指现在只有2个人被认为安全获救，用一般现在时的被动语态，故选B.2．—Will Uncle Peterson come to my birthday party tomorrow?—Pity he ______ to Zimbabwe as a volunteer teacher.A．was sent B．has been sentC．had been sent D．would be sent【答案】B【解析】考查时态和语态。

句意：——Peterson叔叔明天会来参加我的生日聚会吗？——很可惜他已经被派到Zimbabwe去做志愿教师了。

由语境可知，Uncle Peterson被派到Zimbabwe这是发生在过去的事情，这个动作对现在产生了影响，故该空应用现在完成时态。

且主语he和send之间是被动关系，故该句要用被动语态。

综上，B选项正确。

3．Her own story ________ and this book is expected to come out next week.A．had been written B．has been writtenC．had written D．has written【答案】B【解析】句意：她自己的故事已经被写出来了，这部书有望下周出版。

高考英语考前冲刺精选语法资料被动语态用法： A. 当不知道动作的发出者时。

B. 当没必要指出动作的发出者时。

C. 强调动作的承受者。

D. 只有及物动词或动词短语才能构成被动语态。

1．一般现在时：主语 + be + p.p (过去分词)I am often asked to answer some questions.Such songs are usually sung by girls.English is spoken all over the world.2. 一般过去时：主语 + was / were +p.pThe bridge was built over the river in 2000.Was the novel written by him?Many new roads were built in Beijing last year.3. 一般将来时：主语 + shall / will + be + p.pThe room will be painted green.We shall be taught maths by Mr. Wang.He will be sent to Xinjiang after graduation.现在进行时：主语 + be + being + p.pThe car is being repaired now.Many high buildings are being built in Beijing.The test papers are being checked by the teacher.现在完成时：主语 + have / has + been + p.pFive big hospitals have been built in our city since 1980.Has the task been finished by them?His first novel has been translated into English.情态动词：主语 +情态动词 + be + p.pThe work can be done in this way.The patient must be operated on at once.be going to 结构：主语 + be going + to be + p.pThe plan is going to be carried out.The novel is going to be published at the end of this year.使用要点：1. 带双宾语的句子变被动时，直宾和间宾都可做被动语态的主语。