Unit 2 Discovering Useful Structures 课件- 高一上学期英语人教版（2019）必修第二册.pptx

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1、Unit 2 Wildlife Protection,Discovering Useful Structures,Identify the present continuous passive voice to highlight its form and function;Understand and practise using present continuous passive voice in sentences and passages;Prepare a report applying the present continuous passive voice to share k

2、nowledge of local wildlife conservation, as well as opinions and solutions.,Enjoy the song: Love to be loved by you,Fill 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 you To fi

3、nd out the dream is true I _ to be lovedI need to be _ I love to be _ by you,love,blinded,love,loved,loved,Love 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马克特伦茨（Marc Terenzi）。2005年，Marc与德国歌手莎拉寇娜（Sarah Connor）结婚时，将这首歌作为爱的礼物献给妻子。,主动语态,被动语态,Warming up,What are they doing now?,A house is being built by t

4、he workers.,The workers are building a house.,A basketball is being played by Miki.,A book is being read by the girl.,Our fur is being used to make sweaters for people like you.,小结：Present Progressive Passive Voice 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。,2. 结构,1）肯定形式：am/

5、is/arebeing过去分词,The house is being painted.,2）否定形式: am/is/arenotbeing过去分词,The trees are not being watered.,3）疑问形式: Am/Is/Are主语being过去分词？,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?,1. The plan _ this month. 计划本月正在执行。2. Your computer _ now. 现

6、在没人修理你的电脑。3. _ these fields _ this week？ 这周有人在给这些地浇水吗？4. Where _ you _ now？ 现在你们在哪里接受面试？,is being carried out,is not being repaired,3. 主动语态变被动语态的原则,“三变”,例：They are building nine parks.,原句主语变为by短语宾语变为主语 谓语由主动变为被动,“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 built,

7、are being built,例：1. Mary _ (interview) now.2. Look! The baby _ (take care of) by her aunt.3. The disease _ (study) at present by scientist.,4. 现在进行时的被动语态基本用法：,（1）表示现在正在进行的被动动作。,is being taken care of,is being studied,is being interviewed,（2）少数及物动词的进行时表示按计划、安排将要承受某个动作。,例：1.今晚将要举办一场晚会。 An party _ (he

8、ld) tonight.2.下面将唱一首民歌。 Afolksong _(sing) next.3.据说下周日早上八点他将开飞机去。 Itissaid that a plane_(flow)byhimtoAmerica ateightnextSunday morning.,is being held,isbeingsung,is beingflown,(3)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。 小王, 过来,有你的电话。,(4)表示被动结构“

9、be+under/in等介词+名词” 结构可替换进行时被动语态。,isbeingattacked,例：1. 目前这个城市正受到进攻。,Thecityisunderattackatthemoment.,2. 桥梁正在建筑中。,Thebridgeisunderconstruction.,isbeingconstructed,1 Choose the suitable verb forms to complete the sentences.,1. Im (working/being worked) at home today because my office is (painted/being

10、painted).2. The alarming report is (written/being written). It will be 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 hunt

11、ed)?6. It is reported that living spaces for wildife are (reduced/being reduced) due to the cutting of trees.,2 Liu Tao would like to express his concern over the wetland in his hometown. Help him finish the passage with the present continuous passive voice of the verbs in brackets.,In the wetland o

12、f 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. That was an interesting place for all of us. But things have begun to change in recent

13、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 part_(cover) with new houses. You can see rubbish everywhere. The wetland _ (pollute) seriously every day. I am very woried abo

14、ut it. What can we do?,are being caught,are being sold,are being killed,is being destroyed,is being polluted,are being covered,In groups, discuss the questions below. Prepare to give a presentation of your ideas to the class.,1. What do you know is being done in your neighbourhood to protect animals

15、 and plants?,2. What suggestions do you have?,Sample Conversation,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 protected not only because they are very old but also because they are the nat

16、ural 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.,1.现在进行时的被动语态的基本结构,（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、安排将要承受某个动作。 (3)没有进行时的被动语态 (4)表示被动结构“be+unde

17、r/in等介词+名词”结构可替换进行时被动语态。,2.现在进行时的被动语态的基本用法,用所给动词的适当形式填空1 History is _ by the people. ( make)2 Some trees _ on the hill now. (plant)3 A new subway _ (build) next year.4 She _ (take) to the hospital already.5 Thousands of satellites _ (send) up into the space so far.6 Notes _( take)by you right now.7

18、Young trees should _(water) often.,made,will be built,has been taken,have been sent,are being taken,be watered,are being planted,1.关于在哪儿建厂的问题正在被讨论。The question about where is the factory going to be built _ now.2.正在设计一个保护自然资源的项目。A project about protecting the natural resources _3.受到攻击时应保持冷静。You shou

19、ld stay cool when you _4.我感到很迷惑，我们商店的商品老是被偷。I feel very puzzled that the goods in our shop _,is being discussed,is being designed,are being attacked,are always being stolen,1.Write more sentences describing what is happening while you visit a place or take part in an event and then share them with your classmates to let them guess what you did or where you have been.2. Prepare a report on what is being done in your neighborhood to protect animals and plants and the suggestions you have.,Bye-bye!,