Unit 2 Wildlife Protection Discovering Useful Structures(课件)-【上好课】高一英语同步高效课堂系列(人教版2019必修第二册)

高中英语人教版2019必修第二册 Unit 2 Wildlife Protection Discovering Useful Structures 1 Learning objectives Learning objectives By the end of this section, you will be able to: 1. learn the meaning of some new words and try to use them. 2. identify the present continuous passive voice; 3. grasp the form and function of the present continuous passive voice; 4. correctly use the present continuous passive voice to complete related practices; 5. prepare a report applying the present continuous passive voice to share knowledge of local wildlife conservation, as well as opinions and solutions. Langue points 1.reduce (1)vt.减少，缩小(尺寸、数量、价格等) reduce…to减少……到 reduce…by 以(比例)……减少 ★Costs have been reduced by 20% over the past year. 过去一年，成本已经减少了20%。 (2)vt.使沦为，使陷入(不好的境地) be reduced to (doing) sth.使陷入(更坏的)境地；使沦落；使陷入窘境 ★They were reduced to begging in the streets. 他们沦落到沿街乞讨。 ★The attentions of the media reduced her to tears. 媒体的关注把她弄哭了。 Langue points (3)vt.使简化为 reduce sth.to sth.将……概括成(或简化为)…… ★We can reduce the problem to two main issues. 我们可以将这个问题概括成两个要点。 (4)vi.节食，减肥(=on a diet) ★She has been reducing for the last few weeks. 最近几个星期她一直在节食。 Langue points 2. due (1)adj.应支付的；应有的，适当的 ★He got his due reward.他得到了应得的报酬。 ★We paid due attention to the problem.我们对此问题给予了应有的注意。 (2)adj.到期的 ★The bill will be due next Monday. 这张账单下星期一到期。 (3)adj.预定的，约定的 be due to do预定做…… ★The train is due to leave for Shanghai at 8 o’clock. 这趟列车定于8点出发去上海。 (4)due to由于 ★His success was due to the fact that he had been working hard. 他的成功是由于他一直勤奋地工作。 Langue points 3. in order to  in order to为了；以便,后接动词原形，表示目的。 in order (not) to do 为了(不)做…… ★In order to succeed,we must have a complete and thorough plan. 为了成功，我们必须要有一个周密的计划。 ★Talk quietly in the reading room in order not to disturb others. 在阅览室里，轻声说话，以免妨碍别人。 归纳拓展 in order整齐的，井然有序的 in order+that从句 为了；以便(引导目的状语从句) Langue points 4. search for  用法详解 search for搜索；查找 ★They searched for a spot where they could sit on the floor. 他们在地板上寻找一处能够坐下来的地方。 ★The villagers are searching for the missing child. 村民们正在搜寻那个失踪的孩子。 归纳拓展 search…for搜寻……以寻找 in search of=in the/one’s search for搜寻 look for寻找 Langue points 5. Concern  涉及，关系到，使担心，n；担忧，关心，关心的事 ★As for driverless cars, what is the author's major _______?(2018北京) 关于无人驾驶汽车，作者最关心的是什么？ ★If we could show concern __ others on need, the world would be a better place to live in.(2014浙江) 如果我们能关心他人的需求，世界将成为一个更美好的家园。 ★I voiced my biggest _______ to my mother. “How will I make friends?”(2019北京) 我向母亲表达了我最大的担忧：“我怎么交朋友？” ★The large color decisions in your rooms _______ the walls, ceilings, and floors.(2018全国I) 你房间里的主要颜色选择与墙壁、天花板和地板有关。 concern concern concern to Langue points 6. adapt 使适应 改编，适应 ★Ideally, the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an ecosystem back from the borderline. (2019天津) 理想情况下，该系统将告诉我们该何时____正在将生态系统推向崩溃的人类活动，甚至允许我们将生态系统从崩溃边缘拉回来。 ★After all, if we adapt in that way, we may avoid the need to change in so many others.(2017江苏) 毕竟，如果我们以这种方式适应，我们可能会避免改变许多其他方面的需要。 ★As with any film that is adapted from a novel, the movie often does not do the book justice. 与任何____自小说的电影一样，这部电影通常也不符合原著。 调整 改编 Langue points adapt to_____ ★Human beings will continue to adapt to the changing climate in both ordinary and astonishing ways.(2017江苏) 人类将继续以一般或惊人的方式_____气候变化。 ★Because our bodies adapt to everything we do to them. And as far as your body is concerned, it's "use it. or lose it"!(2013浙江) 因为我们的身体会_____我们对它们所做的一切。就你的身体而言，它就是“利用它，或失去它”！ _________n. 适应；改编；改编本 ★But the most sensible form of __________ is surely to adapt our energy systems to emit less carbon pollution.(2017江苏) 但最明智的适应方式无疑是调整我们的能源系统，以减少碳污染的排放。 adaptation adaptation 适应 适应 适应 Langue points 7. beauty 美，美人；美好的东西 ★Chinese models are the faces of beauty and fashion campaigns that sell dreams to women all over the world, which means Chinese women are not just consumers of fashion — they are central to its movement.(2019全国III) 中国模特是美容和时尚活动的代言人,她们向世界各地的女性推销梦想，这意味着中国女性不仅是时尚的消费者——她们是时尚运动的核心。 ★The ideals which have lighted my way, and time after time have given me new courage to face life cheerfully have been kindness, beauty and truth.(Albert Einstein) 有些理想曾为我们引过道路，并不断给我新的勇气以欣然面对人生，那些理想就是——真、善、美。 ★Real beauty comes from learning, growing, and loving in the ways of life. That is the Art of Life. 真正的美丽源于生命里的学习、成长和热爱。这就是生命的艺术。 ★Beauty without virtue is a rose without fragrance. 无德之美犹如没有香味的玫瑰，徒有其表。 Lead-in What kind of tense do the two dialogues use? Lead-in Read the three sentences and try to find the functions of present continuous passive voice. ·African elephants are being hunted. ·What is being done to help them? ·What measures are being taken to help them? Identifying Underline the present continuous passive voice in the sentences and discuss its functions. African elephants are being hunted. What is being done to help them? What measures are being taken to help them? am/is/are being done Identifying Finding more examples Find more sentences with the present continuous passive voice in this unit. I know that they are being hunted and their habitat is getting smaller... What measures are being taken? They are being hunted, illegally, for their valuable fur. Much is being done to protect wildlife. These large animals are being killed. Identifying 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 are being built Identifying 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 African 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. 1 2 3 4 Identifying 现在进行时的被动语态 （时态和语态结合，先体现时态，后体现语态） 表进行 表被动 结构 现在进行时：am/is/are + V-ing 被动语态： be + done (V过去分词) 现在进行时的被动语态：主语 + am/is/are + being + done + (by…) Identifying 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 1. 现在进行时的被动语态的肯定式为: am/is/are+being+done 2. 现在进行时的被动语态的否定式为: am/is/are+not+being+done 3. 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+ being + done? (回答用yes或no) 4. 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+ am/is/are + (...) + being + done? Identifying 现在进行时的被动语态的形式 句型转换 They are building a modern school in his hometown． ①A modern school __________________in his hometown. (改为被动语态) ②A modern school _________________in his hometown. (把句①改为否定句) ③___________________________in his hometown？(把句①改为一般疑问句) ④_______________________________ _(对句①就in his hometown进行提问) Where is a modern school being built？ Is a modern school being built isn’t being built is being built Identifying Basic usage 基本用法 1. 表示此刻正被进行的动作，句中常用now, right now, look, at present, at the moment等时间状语连用。 He is being examined by the doctor now. 她现在正在接受医生的检查。 Look! The children are being cared of by their aunt. 看！孩子们正由他们姑妈照顾。 Identifying The farmer is harvesting the crops at the moment. The crops are being harvested by the farmer at the moment. 表示现阶段正被进行的动作，但此动作在此时此刻不一定正在发生。 The snub—nosed monkeys are being protected now. Identifying The birthday party is being held this evening. 表示一种经常性的被动行为，常和always,frequently等表示频率的副词连用，这种用法常常带有说话者的赞扬或厌恶的感情色彩。 He is always helping others. The children are always being taken good care of. 表示按计划或安排主语将要承受谓语动词所表示的动作。 Identifying Study the grammar—The Present Continuous Passive Voice. 语法图解： 用法： 1.表示正在进行或发生的被动动作。 2.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,但这一被动动作在此时不一定正在发生。 3.表示按计划、安排主语将要承受某个动作。 4.表示一种经常性或习惯性的被动行 为,常与always、forever、continually、 constantly等词连用,往往带有赞扬、 责备、厌烦及埋怨等感情色彩。 Identifying Discuss the following question with a partner. What is the difference among the different verb forms? Verb forms 时态、语态 be (am/is/are) being done 现在进行时的被动语态 Present Continuous Passive Voice be (am/is/are) doing 现在进行时的主动语态 Present Continuous Active Voice be (am/is/are) done 一般现在时的被动语态 Simple Present Passive Voice Comparing 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. Activity 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 found 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 fed　 is being debated　 are being cleared Activity 1. 关于在哪儿建厂的问题正在被讨论。 The question about where the factory is 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 should stay cool when __________________. 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 Activity Imagine that you are visiting a place or taking part in an event. And think about the various things that are being done. Innovation 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 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 _____________ (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 Innovation Discuss the following questions. • What is happening to the small birds 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 covered with new houses. You can see rubbish everywhere. The wetland is being polluted seriously every day. Innovation 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 suggestions 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: 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... Students’ own answers Summary Homework 1.Review what we have learnt. 2.Do the homework on page 68-69. 选做： Make a dialogue about how to protect the wildlife by using the present continuous passive voice . Thank you for your listening [主干图解] $$