Unit 2 Wildlife Protection-Discovering Useful Structures课件 -2023-2024学年高中英语人教版(2019) 必修第二册

人教版（2019）必修二 Unit 2 Wildlife Protection Discovering Useful Structures Report an ongoing event By the end of this section, you will be able to: 1. identify the present continuous passive voice; 2. grasp the form and function of the present continuous passive voice; 3. correctly use the present continuous passive voice to complete related practices; 4. prepare a report applying the present continuous passive voice to share knowledge of local wildlife conservation, as well as opinions and solutions. Learning objectives Look, she is writing a report. The report is well written. The report is being written by one of the best students. Review and think. What is the tense and voice (时态和语态) is used in the following sentences? the present continuous tense (am/is/are + doing) the simple present passive voice (am/is are + done) am/is /are + being done the present continuous passive voice Lead-in I know that they are being hunted and their habitat is getting smaller... (P15) What measures are being taken? (P15) They are being hunted, illegally, for their valuable fur. (P16) Much is being done to protect wildlife ... (P16) These large animals are being killed ... (P17) Underline the present continuous passive voice in the sentences and discuss its function. And find more sentences with the same verb form in this unit. African elephants are being hunted. What is being done to help them? What measures are being taken to help them? Form: am/is/are + being done Presentation Choose the suitable verb forms to complete the sentences. 1. I’m (working / being worked) at home today because my office is (painted / being 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 hunted)? 6. It is reported that living spaces for wildlife are (reduced / being reduced) due to the cutting of trees. Presentation The Present Continuous Passive Voice 1. 定义：现在进行时的被动语态表示现在或现阶段正在进行或发生的被动 动作，强调主语是动作的承受者。 2. 结构： （1）肯定式：主语 + am/is/are + being done + 其他 Currently, about 35,000 works are being displayed in over 300 rooms in the Louvre, and it would take a lifetime to see everything. （2）否定式：主语+ am/is/are + not + being done + 其他 It is reported that the water in the lake is not being protected now. （3）一般疑问式：Am/Is/Are + 主语 + being done + 其他 Are the babies being looked after by this nurse? The Present Continuous Passive Voice （4）特殊疑问式：特殊疑问词 + am/is/are (+主语) + being done + 其他 Who is being trained for the coming English speech contest? 3. 用法： （1）表示说话时正在进行的被动动作。句中常有now，at the moment等时 间状语。 With the development of society, many traditional ideas are being changed now. （2）表示现阶段正在进行的被动动作（说话时不一定在进行）。 These animals are being hunted at such a high speed that they will disappear soon. The Present Continuous Passive Voice （3）表示按计划或安排将要进行的被动动作（此种用法仅限于少数及物动 词，如 hold，take等)。 A party is being held tonight. （4）常与 always，constantly，often等词连用，含有赞赏、羡慕、不满、 讨厌等感情色彩。 I feel very surprised that the window of our classroom is often being broken. Alan is always being praised by his English teacher. 4. 注意： （1）不可遗漏being。现在进行时的被动语态表示说话时正在进行的被动 动作，如果把being漏掉，即成为一般现在时的被动语态。 The Present Continuous Passive Voice Look! The children are being taken care of by their aunt. Children are taken good care of at school. （2）take care of，look after，talk about，think of等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。 What else is being thought of? （3）现在进行时的被动语态有时也可以转换为“be + 介词（under/in等）+ 名词”结构。 The problem is being discussed (= is under discussion) at the meeting. The telephone is being used ( = is in use) now. Complete the sentences with the correct forms of the given verbs. Workbook 1. A new library ___________ (build) in our school. It will open next year. 2. Conservation programmes for wild animals ________________ (discuss) in Australia now. 3. What ___________ (do) in your town to protect local wildlife? 4. Don’t worry. Measures _____________ (take) to stop such a thing from happening again. 5. I ____________ (tell) that my ID and password are not working. What should I do now? 6. Mum, my computer ____________ (fix). Can I use yours for a while? 7. It is believed that many plant species _________________ (threaten) with extinction. is being built are being discussed is being done are being taken am being told is being fixed are being threatened Presentation Rewrite the sentences using the present continuous passive voice. 1. The zoo is opening a new area for the two baby elephants. 2. The doctors are not examining the patient. 3. They are raising more funds for research into wildlife protection. 4. The city is setting up a new nature reserve for endangered animals. 5. Today we are completing our writing task online. A new area is being opened for the two baby elephants (by the zoo). More funds are being raised for research into wildlife protection. The patient is not being examined (by the doctors). A new nature reserve is being set up for endangered animals in/by the city. Today our writing task is being completed online. 1. Nowadays more and more functions are adding to mobile phones. _______________ Read each sentence. If you find a mistake, underline it and write the correct form on the line. If the sentence is right, put a tick on the line. 2. Don’t call Mary. She is interviewed right now. _______________ 3. Are the right decisions being made? We have to wait and see. _______________ 4. Our speech is preparing. It will be ready in one or two hours. _______________ 5. Highway traffic is slowing down by the accident. _______________ 6. You can find online what new clothes are selling. _______________ 7. The park which is rebuilt will be open to tourists next month. _______________ 8. Where is the experiment being carried out by the students? _______________ being added being interviewed being prepared being slowed being sold being rebuilt Read and complete the passage about wildlife protection with the correct verb forms in brackets. The balance of nature on our planet ______________ (threaten) as a large number of species _____________ (drive) to extinction. Some scientists predict that half of all our plants and animals will be extinct by 2100. The question is why these species _________________ (endanger). One of the main reasons is loss of habitat. Animal habitats _________________ (destroy) as humans search for more natural resources to consume (消费). More land ______________ (also use) for growing crops or keeping livestock (家畜). In addition, massive amounts of waste ________________ (produce) by humans, which are polluting animal habitats. Harmful chemicals ______ by human activities are being released into the air, water, and soil. The whole of nature ______________ (affect) by human beings. However, much has been done and ______________ (still do) to save endangered species. Many programmes ________________ (design) to preserve the populations of endangered species. In my opinion, there is still hope that humans can live in harmony with all things on the earth. is being threatened are being driven are being endangered are being destroyed is also being used are being produced created is being affected is still being done are being designed 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 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. That 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 see rubbish everywhere. The wetland ______________ (pollute) seriously every day. I am very worried about it. What can we do? are being caught are being sold are being killed is being destroyed are being covered is being polluted Complete the speech with the correct sentences or clauses.Then discuss possible solutions in groups. Workbook Hello, everyone! I’ve just come back from a wonderful trip to Tibet. It was so beautiful there that ______. The scenery was so impressive and the air was so fresh and clean. ______ However, ______. Cans, _____ as they pass through Tibet. I worry about the effect this will have on the local wildlife. ____ We should all think about this. A Visitors are being told to pay more attention to protecting the environment. B this beautiful countryside is being spoiled by careless visitors C paper and plastic bags are still being thrown away by many tour groups D How can we make visitors more aware of the damage that is being done to the environment? E I felt I was in a fairyland (仙境) E A B C D Production In groups, 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 suggestions do you have? 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 natural habitat for songbirds. C: That’s 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 ... Sample Answer Words and Expressions It is reported that living spaces for wildlife are being reduced due to the cutting of trees. (P18) 据报道，由于树木被砍伐，野生动植物的生存空间正在缩减。 reduce /rɪ'djuːs/ vt. 减少 搭配 reduce ... to ... 把……减少到……（表示减少后的量) reduce ... by ... 把……减少……（表示减少的程度或幅度） reduce the risk of ... 减少……的风险 例句 This sort of diet could reduce the risk of certain cancers. 这种饮食方式会降低罹患某些癌症的风险。 It is reported that living spaces for wildlife are being reduced due to the cutting of trees. (P18) 据报道，由于树木被砍伐，野生动植物的生存空间正在缩减。 reduce /rɪ'djuːs/ vt. 减少 拓展 reduce ... to ... 使沦为，使陷入窘境（常用于被动语态） be reduced to tears 流下眼泪 be reduced to ruins 化为废墟 reduction n. [C，U]减少，缩小，降低 That old building has been reduced to ruins, smelly and dirty. 那个古老的建筑物已经化为废墟，又臭又脏。 Rising sea temperatures could lead to some reduction in marine species. 海水温度上升可能会造成海洋物种的减少。 It is reported that living spaces for wildlife are being reduced due to the cutting of trees. (P18) 据报道，由于树木被砍伐，野生动植物的生存空间正在缩减。 due to 由于；因为 例句 The captain of the ship was advised to turn back due to a sudden heavy storm. 由于突然来了一场狂风暴雨，有人建议船长返航。 拓展 due （1） adj. 预定，预期；到期。通常用作表语或后置定语。 be due to do sth. 预计/预期做某事（to为不定式符号） （2） adj. 应支付，应给予 be due to sb. 应付给某人；应给予某人（to为介词） Summarize the form and functions of the present continuous passive voice. Prepare a report on what is being done in your neighbourhood to protect animals and plants and on your suggestions. Homework $$