Unit 2 Discovering Useful Structures ppt课件 -（2019）新人教版高中英语必修第二册.pptx

1、Discoving Useful Structures P18 Unit 2 Wildlife Protection现在进行时的被动语态Present Continuous Passive VoiceLearning objectives：1. Identify the present continuous passive voice. 2. Master the present continuous passive voices structure and function.Enjoy a song: Love to be loved by youLove to be loved by yo

2、uLove To Be Loved By You 是一首旋律优美的英文歌曲，演唱者是美国流行歌手Marc Terenzi马克特伦茨。2005年，Marc与德国歌手Sarah Connor莎拉寇娜结婚时，将这首歌作为爱的礼物献给妻子。Lead inFill in the blank with the lyrics. Baby, tell me how can I tell youThat I _ you more than life Show me how can I show you That Im _ by your light When you touch me I can touch y

3、ou To find out the dream is true I _ to be lovedI need to be _ I love to be _ by youloveblindedlovelovedloved被动被动语态语态主动主动语态语态歌词歌词将下列被动句变为主动句：将下列被动句变为主动句：We gave the student some books. They awarded him the Nobel Prize. 1. The student was given some books. 2. The Nobel Prize was awarded（to）him. 3. He

4、 was bought a computer by his father last week.His father bought him a computer last week. Presentation将下列被动句变为主动句：将下列被动句变为主动句：Hunters are hunting African elephants.What are people doing to help them? 4. African elephants are being hunted.5. What is being done to help them? 6. What measures are bein

5、g taken to help them?What measures are people taking to help them?现在进行时的被动语态am/is/arebeing doneSummary现在进行时的被动语态1. 定义 表示“某人/事此时此刻正在被”，主语是动作的承受者, 表示说话时或现阶段某个被动的动作正在进行。Present Continuous Passive Voice2. 结构 1）肯定形式：am/is/arebeing doneThe house is being painted. 2）否定形式: am/is/arenotbeing doneThe trees ar

6、e not being watered.3）疑问形式: Am/Is/Are主语being done？Am I being watched over?4）特殊疑问句的形式: 把特殊疑问词放在一般疑问 句前面。How many bridges are being built in the village?2.现在进行时的被动语态的现在进行时的被动语态的基本结构基本结构肯定结构be (am/is/are) being done否定结构be (am/is/are) +not+being done一般疑问结构Be (am/is/are) +主语+being done?特殊疑问结构特殊疑问词+be(am/

7、is/are)+主语+being done?Summary3. 主动语态变被动语态的原则“三变三变”例：They are building nine parks.原句主语 by的宾语宾语 主语 谓语由主动 被动“三不变三不变”原句意思不变 原句时态不变 原句主谓宾以外成分不变Nine parks _ by them. How many parks _?are being builtare being built4. 现在进行时的被动语态基本用法：（1 1）表示现在）表示现在正在进行正在进行的的被动被动动作。动作。is being taken care ofis being studiedbei

8、ng interviewed例：1. Mary is _ (interview) now.2. Look! The baby _ (take care of) by her aunt.3. The disease _ (study) at present by scientists.（2 2）少数及物动词的进行时表示按）少数及物动词的进行时表示按计划计划、安安 排排将将要承受要承受某个动作。某个动作。1.今晚将要举办一场晚会。 An party _ (held) tonight.2.下面将唱一首民歌。 A folk song _ (sing) next. 3.据说下周日早上八点他将开飞机去。

9、It is said that a plane_ (flow)by him to America at eight next Sunday morning. is being heldis being sungis being flown(3)(3)没有进行时的被动语态没有进行时的被动语态一些表示状态、心理活动、拥有、存在等的动词(和主动语态一样)一般不用进行时被动语态, 常用一般现在时被动语态表示此时此刻或目前主语承受谓语动词的动作。 【练习】判断正误。Xiao Wang, come here. You are being wanted on the phone. Xiao Wang, co

10、me here. You are wanted on the phone. (4)(4)表示被动结构表示被动结构“be +under/ in等介词等介词+ +名词名词” 结构可结构可替换替换进行时被动语态。进行时被动语态。 is being attacked1. 目前这个城市正受到进攻。The city is under attack at the moment. 2. 桥梁正在建筑中。The bridge is under construction. is being constructedSummary（1）表示现在正在进行的被动动作。（2）少数及物动词的进行时表示按计划、安排将要承受某个

11、动作。 (3)没有进行时的被动语态 (4)表示被动结构“be +under/ in等介词+名词”结构可替换进行时被动语态。4.4.现在进行时的被动语态的基本用法现在进行时的被动语态的基本用法Choose the suitable verb forms to complete the sentences.1. Im (working/being worked) at home today because my office is (painted/being painted).2. The alarming report is (written/being written). It will b

12、e finished soon.3. What part of the city is (attacked /being attacked) now?4. Right now, the deer are (watched/being watched) over by many volunteers.5. Who is (hunting /being hunted) the kangaroos? Where are they (hunted/being hunted)?6. It is reported that living spaces for wildife are (reduced/be

13、ing reduced) due to the cutting of trees.Practice1. Look! A frog is swallowed by a snake over there. 2. These animals are hunting at such a speed that they will disappear soon.3. Will you go with me to see the film that is shown tonight? 4. The man has killed his wife. Now he is be wanted by the pol

14、ice. 5. Thousands of families are fleeing their homes because their country is under attacked.beingbeing huntedbeingbeingbeing1. A new cinema_ (build) here now.2. A lot of tall buildings _ (set) up, and people will move next year. 3. The disease _ (study) by scientists at present. 4. Water _ (boil)

15、at 100. 5. pandas _ (disappear) in our country year after year.6. The patient _ (examine) now. He will come out soon.is being builtare being setare being studiedboilsis being examinedare disappearingLiu Tao would like to express his concern over the wetland in his hometown. Help him finish the passa

16、ge with the present continuous passive voice of the verbs in brackets.In the wetland of my hometown, there are many different kinds of animals, including wild birds, fish, snakes, insects and so on. When I was in primary school, I often went there with my friends to watch the birds and study them. T

17、hat was an interesting place for all of us. But things have begun to change in recent years. Small birds _ (catch) with nets. Wild ducks _ (sell) at food markets. Fish and snakes _ (kill) for food in restaurants. And even worse, the wetland _ (destroy). Some parts _ _(cover) with new houses. You can

18、 see rubbish everywhere. The wetland _ (pollute) seriously every day. I am very woried about it. What can we do?are being caughtare being soldare being killedis being destroyedis being pollutedare being covered现在进行时的被动语态am/is/arebeing doneIn groups, discuss the questions below. Prepare to give a pre

19、sentation of your ideas to the class.1. What do you know is being done in your neighbourhood to protect animals and plants?2. What suggestions do you have?Production Useful Expressions: .is (are) being protected. It is good for. Its a wonderful habitat for. It makes our environment more .Sample Conv

20、ersation:A: What is being done in our neighbourhood to protect animals and plants?B: Well, the old trees in the park are being protected.A: Oh yes. They are being protectednot only because they are very old but also because they are the natural habitat for songbirds.D: Yes, that would certainly help make the air cleaner for them.C: Thats right. Perhaps they could help protect the birds by making the roads around the park free from cars.