Unit 2 Period 3 Discovering Useful Sturucture（课件）英语人教版必修第二册

Unit 2 WILDLIFE PROTECTION 高中英语人教版必修第二册 Discovering Useful Sturucture Learning objectives Master the structure,function and usage of the present continuous passive voice(am/is/are + being done). Recognize differences between active & passive voice in present continuous tense. Use the tense to describe ongoing threats or protection actions for wild animals. Raise awareness of wildlife protection and learn to express concern for endangered species. Contents 1. Lead in 2. Presentation 3. Practice 4. Production 5. Summary 6. Assessment 7. Homework 01. Lead in Lead-in Lead in 1. People hunt African elephants. 2. African elephants are hunted by people. 3.People are hunting African elephants. 4.African elephants are being hunted. Translate and compare the following two sentences 人们猎杀非洲大象。 非洲大象被人们猎杀。 人们正在猎杀非洲大象。 非洲大象正在被人们猎杀。 Active Voice主动语态 主语是动作发出者 Passive Voice被动语态 主语是动作承受者 现在进行时：此时此刻正在进行的动作。 现在时的被动语态(Present Continuous Passive Voice)：此时此刻正在被进行的动作。 现在进行时：此时此刻正在进行的动作。 结构:am / is / are + doing I am teaching. / They are playing football. Compare Present Continuous Tense and Present Continuous Passive Voice 现在时的被动语态(Present Continuous Passive Voice) 结构:am/is/are + being done The classroom is being cleaned. 时态和语态结合，先体现时态，再体现语态。 Lead in 02.Presentation Compare Present Continuous Tense and Present Continuous Passive Voice 现在进行时主动 (Active Voice) 关注点：动作的发出者 结构 (Structure): sb / sth + am/is/are + doing 例句: Hunters are hunting elephants. (猎人正在猎杀大象) 现在进行时被动 (Passive Voice) 关注点：动作的承受者 结构 (Structure): sth + am/is/are + being done 例句: Elephants are being hunted (by hunters). (大象正遭到猎杀。) Presentation Learn the forms of Present Continuous Passive Voice For example: 1.Many species are being threatened.（肯定句） 结构：S（主语） + am/is/are + being done 2.The reserve is not being damaged. （否定句） 结构：S（主语） + am/is/are + not+being done 3. Are rare birds being protected? （一般疑问句） 结构：Am/Is/Are+S（主语）+ being done? 4. What action is being taken? （特殊疑问句） 结构：Wh-疑问词+Am/Is/Are+S（主语）+ being done? Presentation Lead-in Let's read and summary Group 1 1. African elephants are being hunted. 2. A new report on wildlife is being written. 3. The illegal trade is being investigated by the police. Report an ongoing event (报道正在发生的事件) Group 2 1. Most wildlife habitats are being reduced. 2. The river is being polluted by factory waste. 3. Rare species are being pushed to the brink of extinction. Express concern / worry (表达担忧) Group 3 1. New nature reserves are being built to help pandas survive. 2. More laws are being made to protect wildlife. 3. Injured animals are being treated by veterinarians. Describe ongoing protection work (描述正在进行的保护工作) Presentation Lead-in 1.表示说话时正在进行的被动动作，句中常有now, right now, look, at present, at the moment等时间状语 Rare plants are being destroyed now. Trees are being cut down now. Animals are being fed now. Presentation Lead-in 2.表示现阶段正在进行的被动动作（说话时不一定在进行），句中常用currently, recently, these days, these weeks等时间状语。 Laws are being made currently. Research is being done these days. Awareness is being raised recently. Presentation Lead-in 3.表示一种习惯性的被动动作（often, always, frequently, constantly），带有赞扬、羡慕、抱怨、讨厌等情感色彩。 Wildlife is being protected constantly(Praise). Animals are being hunted frequently(Blame). He is always being praised (Praise). Presentation 03. Practice Lead-in Practice Practice 1: Complete the sentences with the correct form of the verbs in brackets. 1. Right now, the elephant _______________ (hunt). 2. A new zoo _______________ (build) in our city. 3. Look! The birds _______________ (feed) by the zookeeper. 4. The old forest _______________ (destroy) for a new road. 5. The injured panda _______________ (take) care of. is being hunted is being built are being fed is being destroyed is being taken Lead-in Practice Practice 2: Change the following sentences into passive voice. 1.People are threatening many endangered species. → Many endangered species are being threatened. 2.Volunteers are protecting the habitat of wild birds. → The habitat of wild birds is being protected by volunteers. 3.The government is taking measures to stop illegal hunting. → Measures are being taken to stop illegal hunting. Lead-in Practice Practice 3: Read the passage and fill in the blanks with the correct form of the verbs in brackets. The world's wildlife _______________ (threaten) by human activities every day. In many places, forests _______________ (cut) down, which means animals' habitats _______________ (destroy). As a result, more and more species _______________ (push) towards extinction. However, there is hope. Many conservation projects _______________ (carry out) around the globe. New nature reserves _______________ (create) to provide safe homes for endangered animals. Scientists _______________ (study) ways to help these species recover. Also, public awareness _______________ (raise) through education and media. It is clear that efforts _______________ (make) to protect our planet's precious wildlife. is being threatened are being cut are being destroyed are being pushed are being carried out are being created are studying is being raised are being made 04. Production Lead-in Production Group Discussion & Presentation(Use Present Continuous Passive Voice) Topic: Protect animals and plants 1 What threats are wild animals facing? In our city,think about their survival situation. 2 What is being done to protect them? Discuss measures in our neighbourhood or city for wildlife and plants. 3 What more suggestions can we offer? Think creatively and share your own ideas. Lead-in Production Group Discussion & Presentation(Use Present Continuous Passive Voice) Topic: Protect animals and plants For example: "In our city, some wild animals' habitats are being destroyed due to urban development. However, positive actions are being taken. For example, more parks are being built to provide green spaces. Also, educational programs are being organized in schools to raise awareness. We suggest that stricter laws should be made to protect the local wildlife." Requirement: At least 4 sentences with the target grammar. 05. Summary Lead-in Summary 1.现在时的被动语态(Present Continuous Passive Voice) 结构:am/is/are + being done 2. 用法 1)表示说话时正在进行的被动动作，句中常有now, right now, look, at present, at the moment等时间状语; 2)表示现阶段正在进行的被动动作（说话时不一定在进行），句中常用currently, recently, these days, these weeks等时间状语; 3)表示一种习惯性的被动动作（often, always, frequently, constantly），带有赞扬、羡慕、抱怨、讨厌等情感色彩。 Lead-in Summary 3. 作用 1)Report an ongoing event(报道正在发生的事件) 2)Express concern / worry(表达担忧) 3)Describe ongoing protection work(描述正在进行的保护工作) 06. Asseesment Lead-in Assessment Learning Objectives Score(1-5) 1.After learning, I can master the structure and usage of the Present Continuous Passive Voice. 2.After learning, I can identify and use the target grammar in context. 3.After learning, I have raised my awareness of wildlife protection. 5-完全能；4-基本能；3-不确定；2不太能；1-完全不能 07. Homework Lead-in Homework 1. Copy the structure,functions,and 5 wildlife-related example sentences in your notebook. 2.Short writing(80–100 words) Topic:The situation of wild animals around us Requirements:Use at least 5 sentences of present continuous passive voice and try to use unit words. Thank you for your listening $