1、Section Discovering Useful Structures单元语法精析 现在进行时的被动语态语法点拨一、现在进行时的被动语态的基本结构肯定结构be (am/is/are) being done否定结构be (am/is/are)notbeing done一般疑问结构be (am/is/are)主语being done特殊疑问结构疑问词be (am/is/are)主语being doneA new library is being built now.一座新图书馆正在被修建。Some disabled children are not being looked after wel
2、l enough.目前一些残疾儿童没有受到足够好的照顾。Is the bridge being repaired now?现在那座桥在修吗？What is being done on the new medicine?目前正在针对这种新药物做什么？How many bridges are being built in the town?在这个镇里在建的桥有多少？巧学妙记主动语态变被动语态的原则“三变”原则：原主变为by短语，原宾变为现主语；谓语主动变被动“三不变”原则：原句意思不变；原句时态不变；原句主谓宾以外成分不变。即学即练单句语法填空The grammar which _is being
3、 learned_(learn) now is easy to master.Some animals _are being protected_(protect) well enough now.The sports meeting _is being held_(hold) in our school at present.(2018天津高考)My washing machine _is being repaired_(repair) this week, so I have to wash my clothes by hand.二、现在进行时的被动语态的基本用法1表示正在进行或发生的被动
4、动作，常与now，look等词连用。She is being examined by the doctor now.现在她正在被医生检查。2表示现阶段或目前这段时间正在进行的被动动作，但这一被动动作在此时不一定正在发生。The life of the panda is being studied at present.现在正在研究大熊猫的生活习性。3表示按计划、安排主语将要承受某个动作。Some rock music is being played by them next.下面将由他们演奏一些摇滚音乐。4表示一种经常性或习惯性的被动行为，常与always，forever，continuall
5、y，constantly等词连用，往往带有赞扬、责备、厌烦及埋怨等感情色彩。Tom is always being praised by the teacher.汤姆总是受到老师的表扬。即学即练单句语法填空(江苏高考)Now similar concerns _are being raised_(raise) by the giants that deal in data, the oil of the digital age.Look! She _is being criticized_(criticize) by the teacher in the office.The milu dee
6、r _is/are being studied_(study) at the research centre these days.A man has been arrested and _is being questioned_(question) now.三、使用现在进行时的被动语态应注意的问题1在现在进行时的被动语态中，be (am/is/are)为第一助动词，being为第二助动词，缺一不可，且位置不可互换。My computer is being repaired now.我的电脑现在正在被修理。(强调正在被进行)2像take care of，look after，talk abou
7、t，think of等动词与介词构成的短语动词用于现在进行时的被动语态时，其中的介词不可省略。Something is being talked about among those people.那些人正谈论着某件事情。3“be (am/is/are)under/inn.”有时可相当于现在进行时的被动语态。The school is still under construction now.The school is being built now.学校现在正在建设中。The new law is in use.The new law is being used.这项新法律正被使用。4有些动词
8、进行时的主动形式就可以表示被动的意思，常见的这些动词有：print，cook，fry，bake，burn，hang等。The house is burning.房子着火了。The meat is cooking.正在煮肉。5有些表“状态、心理活动、情感”等的动词，常用一般现在时的被动语态表示“正在进行”。You are wanted on the phone.有人打电话找你。MP3 is becoming more and more popular.In other words, it is loved by more and more people.MP3越来越受欢迎，换句话说，它越来越受人
9、们的喜爱。即学即练完成句子Our child _is being looked after_ by his teacher.我们的孩子正由他的老师照顾着。The poor old man _is being taken good care of_ by the volunteer.那位可怜的老人正由这名志愿者悉心照顾着。Jack, come here. You _are wanted_ on the phone.杰克，过来，有人打电话找你。The city _is under attack(is being attacked)_ at the moment.这个城市目前正在遭受袭击。The b
10、uilding _is under construction(is being constructed)_.这座建筑正在建设之中。专项练习.用所给词的适当形式填空1They are living with their parents for the moment because their own house _is being rebuilt_(rebuild)2Many interesting experiments _are being carried_(carry) out these days.3These children _are being looked_(look) afte
11、r by an old man now.4Wait a minute. The dishes for the dinner _are cooking_(cook) in the kitchen.5He _is being punished_(punish) for his mistakes at the moment.6The sports meeting _is being held_(hold) in our school now.7So many things _are being done_(do) here to prevent air pollution.8A bridge _is
12、 being built_(build) in the distance and its construction _will be finished_(finish) in a year.把下面的句子改成被动语态1The government is making great efforts to improve the living conditions of people.Great efforts _are being made_ to improve the living conditions of people by the government.2The farmers are c
13、utting down the jungles in this area so quickly that the wild animals may lose their homes in the near future.The jungles in this area _are being cut down_ by the farmers so quickly that the wild animals may lose their homes in the near future.3People are hunting too many animals these years in some
14、 places.Too many animals _are being hunted_ by people these years in some places.4The teacher is correcting the papers in her office.The papers _are being corrected_ by the teacher in her office.5Our headmaster is preparing a speech now.A speech _is being prepared_ by our headmaster now.6The family
15、are building a new house over there.A new house _is being built_ by the family over there.7The doctors are operating on his left leg.His left leg _is being operated on_ by the doctors.8The farmers are harvesting crops in the field with their faces covered with sweat.The crops in the field _are being
16、 harvested_ by the farmers with their faces covered with sweat.9They are discussing whether they will go for a picnic tomorrow.Whether they will go for a picnic tomorrow _is being discussed_ by them.10The government is protecting the tigers in the newlybuilt reserve.The tigers _are being protected_
17、in the newlybuilt reserve by the government.语法主题应用Dear Sir or Madam，Im writing to give some suggestions to protect the wildlife living in and around our city. As we know, many species of wildlife are in danger of extinction. This is because the environment that they are living in 1_is being destroye
18、d_(正在被毁坏) greatly.With the development of cities, water and air 2_are being seriously polluted_(正在被严重污染). Their living areas are becoming smaller and smaller. They not only have little to eat, but also 3_are being hunted_(正在被猎杀) by human beings. These species of wildlife are important part of our li
19、fe. Although measures 4_are being taken_(正在被采取) to protect them from being hurt, much more is needed. Firstly, more laws must be made to stop people from cutting down trees. Secondly, more reserves should be set up so that they can live safely.I hope my suggestions are helpful.Yours sincerely，Li Hua5
