Unit 2 Wildlife Protection Discovering Useful Structures （ppt课件）--2023新人教版（2019）《高中英语》必修第二册.pptx

1、 UNIT 2 WILDLIFE PROTECTION Period III Discovering Useful StructuresStep I 学习理解学习理解Observe the pictures and state what the persons are doing.Then change the sentences you said into passive voice.1.The workers are building the houses.The houses are being built by the workers.2.Someone is hunting an A

2、frican elephant.An African elephant is being hunted (by someone).3.He is feeding a Tibetan antelope.A Tibetan antelope is being fed(by him).4.People are protecting pandas in Wolong Natural Reserve.Pandas are being protected in Wolong Natural Reserve.1234Underline the present continuous passive voice

3、 in the sentences and discuss its function.African elephants are being hunted.What is being done to help them?What measures are being taken to help them?Find more sentences with the present continuous passive voice in this unit.Well,I know that theyre being hunted and their habitat is getting smalle

4、r.Much is being done to protect wildlife.These large animals are being killed.Read the sentences and 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

5、e finish 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 hunting)the kangaroos?Where are they (hunted/being hunted)?6.It is reported that living spaces for wildlife are(educed/being reduced)due

6、to the cutting of trees.Discuss the following question with a partner.What is the difference among the different verb forms?Verb forms时态、语态时态、语态be(am/is/are)being done现在进行时的被动语态现在进行时的被动语态Present Continuous Passive Voicebe(am/is/are)doing现在进行时的主动语态现在进行时的主动语态Present Continuous Active Voicebe(am/is/are

7、)done一般现在时的被动语态一般现在时的被动语态Simple Present Passive VoiceRead the sentences and sum up the sentence patterns of the Present Continuous Passive Voice.1.Rainforests are being cut and burnt at a speed that they will disappear from the earth in the near future.2.Do you know any other endangered wildlife in

8、China that is not being protected?3.Is their fur being used to make sweaters for people like you?4.What good things are being done here to save local wildlife?肯定式肯定式:be being done否定式否定式:be not being done一般疑问式一般疑问式:Am/Is/Are+主语主语+being+done.?特殊疑问式特殊疑问式:When/How/Where/Why/What(.)+am/is/are(.)+being +d

9、one.?Study the grammarThe Present Continuous Passive Voice.语法图解：语法图解：用法：用法：1.1.表示正在进行或发生的被动动作。表示正在进行或发生的被动动作。2.2.表示现阶段或目前这段时间正在进表示现阶段或目前这段时间正在进 行的或经常发生的被动动作行的或经常发生的被动动作,但这一但这一 被动动作在此时不一定正在发生。被动动作在此时不一定正在发生。3.3.表示按计划、安排主语将要承受某表示按计划、安排主语将要承受某 个动作。个动作。4.4.表示一种经常性或习惯性的被动行表示一种经常性或习惯性的被动行 为为,常与常与always、fo

10、rever、continually、constantly等词连用等词连用,往往带有赞扬、往往带有赞扬、责备、厌烦及埋怨等感情色彩。责备、厌烦及埋怨等感情色彩。Step II 应用实践应用实践用括号内所给动词的正确时态和语态填空。用括号内所给动词的正确时态和语态填空。1.The horses _(feed)by the keeper at the moment.2.The problem on how to protect deer _(debate)at the meeting now.3.Almost 50%of the population of red pandas can be fou

11、nd in the Eastern Himalayas.Their homes in the forest _ (clear)by human activities nowadays.With less than 10,000 of these creatures left in the wild,this is unacceptable.are being fedis being debatedare being cleared1.关于在哪儿建厂的问题正在被讨论。关于在哪儿建厂的问题正在被讨论。The question about where the factory is going to

12、be built _ now.2.正在设计一个保护自然资源的项目。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。受到攻击时应保持冷静。You should stay cool when _.4.我感到很迷惑，我们商店的商品老是被偷。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 _.完成句子。完成句子。is being discussedis being designedare being atta

13、ckedare always being stolenImagine that you are visiting a place or taking part in an event.And think about the various things that are being done.Write sentences using the present continuous passive voice to describe what is happening.现在进行时的被动语态的基本结构现在进行时的被动语态的基本结构1.现在进行时的被动语态的肯定式为现在进行时的被动语态的肯定式为:a

14、m/is/are+being+done2.现在进行时的被动语态的否定式为现在进行时的被动语态的否定式为:am/is/are+not+being+done3.现在进行时的被动语态的一般疑问句的句式为现在进行时的被动语态的一般疑问句的句式为:Am/Is/Are+主语主语+being+done?(回答用回答用yes或或no)4.现在进行时的被动语态的特殊疑问句的句式为现在进行时的被动语态的特殊疑问句的句式为:特殊疑问词特殊疑问词+am/is/are+(.)+being+done?Step III 迁移创新迁移创新 Liu Tao would like to express his concern o

15、ver the wetland in his hometown.Help him finish the passage 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 wi

16、th my friends to watch the birds and study them.That was an interesting place for all of us.But thing 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 restaurant.And even worse,the wetland _(destroy).Some parts _(

17、cover)with new houses.You can see rubbish everywhere.The wetland _(pollute)seriously every day.I am very worried about it.What can we do?are being caughtare being soldare being killedis being destroyedare beingis being pollutedcoveredDiscuss the following questions.What is happening to the small bir

18、ds in the wetland?What is happening to the wild ducks?What is happening to the fish and snakes?What is happening to the wetland?They are being caught with nets.They are being sold at food markets.They are being killed for food in restaurants.The wetland is being destroyed.Some parts are being covere

19、d with new houses.You can see rubbish everywhere.The wetland is being polluted seriously every day.Work in groups to discuss the questions below.Prepare to give a presentation of your ideas to the class.What do you know is being done in your neighbourhood to protect animals and plants?What suggestio

20、ns do you have?Sample:A:What is being done in our neighbourhood to protect animal 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 natural habitat for songbirds.C:Thats right.Perhaps they could help protect the birds by making the roads around the park free from cars.D:Yes,that would certainly help make the air cleaner for them.Students own answers