高中英语知识讲解 现在进行时态的被动语态
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现在进行时态的被动语态概念引入1．The sports meeting is being held in our school.我校正在举行运动会2．Another bridge is being built over the Changjiang river长江正在修建另一座大桥3. The environment in that country is being polluted so badly that all the people can't stand it.那个国家的环境正被严重地污染着，以至于所有的人都感到难以忍受。
4. That bridge is being built. I can't stand the noise.那座桥正在被建，我受不了这噪音。
上述句子的谓语的时态都是现在进行时，语态都是被动语态，现在进行时的被动语态的形式是易错点，是这个单元要学习的内容。
知识讲解【高清课堂：被动语态的概念】被动语态的概念1. 英语中有两种语态：主动语态和被动语态。
2. 主动语态表示主语是动作的执行者例如：Many people speak Chinese.3. 被动语态表示主语是动作的承受者例如：上句可变为Chinese is spoken by many people.为什么要用被动语态？1.当关注的是事情本身而不是动作的执行者，或者根本不知道动作的执行者时。
如:The meeting was put off.My car has been moved.2.动作的执行者很明确时或强调承受者时。
The ceremony was reported in the news last night.If you break the school rules, you will be punished.3.当动作的执行者是“people”或“one”时。
He is believed to have invented the puter.Advertisements are seen everywhere.4.修辞的需要，为了使句子更加简练、匀称现在进行时态的被动语态）is/ are/ am代替be（done ＋being＋be基本构成：1.My new house is being decorated. 我的新房子正在装修。
Money is being collected for the Hope Project. 正在为希望工程募捐。
(2016 高考全国III卷) Apple Days are being held at all sorts of places with an interest infruit，including stately gardens and mercial orchards.各地关注水果的地方都在举办苹果节，包括高雅的花园和商业果园。
2. 基本句型：(1)肯定式：主语＋be＋being＋及物动词的过去分词＋其他。
Another bridge is being built over the Changjiang River.长江上正在修建另一座大桥。
(2)否定式：主语＋be＋not＋being＋及物动词的过去分词＋其他。
The engineer is not being treated fairly.目前这位工程师没有受到公平的待遇。
(3)一般疑问式：Be＋主语＋being＋及物动词的过去分词＋其他？Is the life of pandas being studied by the scientists?科学家们正在研究熊猫的生活习惯吗？(4)特殊疑问式：特殊疑问词＋be＋主语＋being＋及物动词的过去分词＋其他？Where is the new science lab being built?新的科技馆正在哪里建造？拓展：过去进行时的被动语态构成：be＋being＋done （be代替was/were）When I arrived there that evening, the room was being cleaned.那天晚上我到那里时，房间正在打扫。
现在进行时态的被动语态的用法1. 表示此时此刻正在进行的被动的动作。
My sister is now being interviewed.我妹妹正在面试。
The American businessman is now being treated in China.那个美国商人正在中国接受治疗。
2. 表示现阶段正在进行的被动的动作。
(2015 四川高考) And it is not just robins that are being kept awake by artificial light.而且不仅是知更鸟正在受人工光影响而一直无法入睡。
Many interesting experiments are being carried out these days.这些天正在进行着许多有趣的实验。
(说话时，并不一定正在进行)It is reported that the tomb in Henan is still being dug.据报道河南的那个墓仍然正在挖掘中。
3. 表示反复进行的被动的动作。
always、frequently、constantly等和现在进行时的被动语态连用表示反复进行的被动的动作，这种动词形式常用来表示赞扬或厌恶的感情色彩。
I feel very surprised that the window of our classroom is frequently being broken.我感到很吃惊的是我们教室的那扇窗户经常被打破。
拓展：表示过去某一时间或某一阶段正在进行的被动的动作，应该用过去进行时的被动语态。
—Why didn't they drive there on time? 为什么他们没有准时开车到那儿?—Because the road was being mended. 因为那条路正在修理当中。
被动语态中常用的介词1．by表示动作的执行者或施加者By whom is the book written 这本书是谁写的？The children were driven indoors by the rain. 孩子们被雨赶进了室内。
注意：被动语态句子中的by短语并不总是表示动作执行者。
A policeman is known by the clothes he wears.警察可以通过他的服装辨认出来。
（by表示方式）He was much flattered by her asking him to dinner.她邀请他吃晚饭，他受宠若惊了。
（by表示原因）The snow was piled high by the gate.门口雪堆积得很高。
（by表示地点）2．with表示用某种工具The wolf was killed with a gun. 狼被枪打死了。
The field was spread with wild flowers. 田野里野花遍地。
3．from表示源于某种物质（看不出原材料）Good wine is made from grain. 好酒是粮食制成的。
4．of表示用某种材料制成（看得出原材料）The table is made of wood. 这张桌子是用木头做的。
5．其他介词You are wanted on the phone. 有电话找你。
He is known to everybody. 大家都认识他。
She was caught in the rain. 她遭雨淋了。
表示被动意义介词短语表示方位的介词与含动作意义的名词合用，常含被动之义，其意义相当于该名词相应动词的被动形式，名词前一般不用冠词。
1. “under +名词”结构，表示“某事在进行中”。
常见的有：under control 受控制under treatment 在治疗中under repair 在修理中under discussion 在讨论中under construction 在施工中The building is under construction ( is being constructed).这幢楼正在建设中。
常见的有：“出乎……胜过……、范围、限度”名词”结构，beyond+“．2．beyond belief令人难以置信beyond one's reach 够不到beyond one's control 无法控制beyond our hope 我们始料不及The rumour is beyond belief（=can't be believed）.这些谣言不可信。
3.“above+名词”结构, 表示“(品质、行为、能力等) 超过……、高于……”。
His honest character is above all praise．=His honest character cannot be praised enough.他诚实的性格让人赞叹不已。
4．“for+名词”结构，表示“适于……、为着……”。
如：for sale 出售for rent 出租That house is for sale. (= That house is to be sold). 那幢房子待售。
5．“in+名词”结构，表示“在……过程中或范围内”。
如：in print 在印刷中in sight 在视野范围内The book is not yet in print．(=is not yet printed) 这本书还没有付印。
6．“on+名词”结构, 表示“在从事……中”。
如：on sale 出售) on show 展出on trial 受审Today some treasures are on show in the museum (= are being showed).现在一些珍宝正在博物馆展览。
7．“out of+名词”结构；表示“超出……之外”，如：out of control 控制不了out of sight 超出视线之外out of one's reach 够不着out of fashion 不流行The plane was out of control (can't be controlled).飞机失控了。
8．“within+名词”结构，“在……内、不超过……”。
He took two days off within the teacher's permission．老师允许了他休了两天假。
