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

Unit 2 Wildlife Protection Discovering useful structures The Present Continuous Passive Voice -- 现在进行时的被动语态 1 Part I Revision 重点词汇:1. 鹿 n ________ 2. 袋鼠 n ________ 3. 缩减；减少 v ________ 4. 预定的；预期的；应得的 adj _______ 5. 由于；因为 __________ 6. 昆虫；虫 n _________7. 网；球网；互联网 n _________ 8. 社区；街坊；（某特定的）地段 n __________ deer kangaroo reduce due due to insect net neigbourhood 被动语态的构成 1. The book was written by Lu Xun. 2. The classrooms are cleaned by students every day. 3. This maths problem can be worked out by little Tom. 被动语态的构成：主语+ be(am/is/was/are/were) +done Part II Lead-in (3) What measures are being taken to help them? (2) What is being done to help them? (1) African elephants are being hunted. Underline the present continuous passive voice in the sentences and discuss its function. Hunters are hunting African elephants. What are people doing to help them? What measures are people taking to help them? 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。 1. Part III Presentation 4 1. The plan _______________ this month. 计划本月正在执行。 2. Your computer __________________ now.现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 Are being watered are being interviewed 肯定形式：am/is/are＋being＋过去分词 否定形式: am/is/are＋not＋being＋过去分词 疑问形式: Am/Is/Are＋主语＋being＋过去分词？ 特殊疑问句的形式: 把特殊疑问词放在一般疑问句前面。 现在进行时的被动语态构成 形式 结构 肯定式 主语＋am/is/are＋being done. 否定式 主语＋am/is/are not＋being done. 一般疑问式 am/is/are＋主语＋being done？ 特殊疑问式 疑问词＋am/is/are＋主语+being done？ eg：They are building two stadiums. “三不变” Two stadiums ______________ by them. How many stadiums ____________? are being built are being built 3.主动语态变被动语态的原则 “三变” 原句主语 by的宾语 宾语 主语 谓语由主动 被动 原句意思不变 原句时态不变 原句主谓宾以外成分不变 ①表示说话时正在进行的被动动作,句中常用now, right now, at this moment, at present,these days(这些天来)等时间状语。 Some food is being eaten by the bear. ②表示现阶段正在进行的被动动作.(说话时不一定在进行) The problem of food safety is being studied by scientists at present. ③表示一种习惯的被动行为(always, constantly ),带有赞扬、羡慕、讨厌等感情色彩。 Children of our neighbors are always being praised by our parents. Practice (P18) 1 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 wildife are (reduced/being reduced) due to the cutting of trees. 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 woried about it. What can we do? are being caught are being sold are being killed is being destroyed is being polluted are being covered 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. 1. It is reported that many a new house __________ (build) at present in the disaster area. is being built 2. Traditional folk arts of Tianjin like paper cutting ___________ (exhibit) at the culture show of the 2010 Shanghai World Expo. are being exhibited 3. — Hi, Terry, can I use your computer for a while this afternoon? — Sorry. It __________ (repair). is being repaired 4. Would you please keep silent? The weather report __________ (broadcast)and I want to listen. is being broadcast Exercise Part IV Practice 用现在进行时的被动语态改写下列句子。 He is teaching the girl English. 2. Now she is making the boy water the tree. Now the boy is being made to water the tree (by her)． The girl is being taught English (by him)． 3. They are writing a report about the negative effects of cell phones in school． 4. She is making Tom a new coat． A report about the negative effects of cell phones in school is being written (by them)． A new coat is being made for Tom ． Exercises 1．The suggestion _________________(discuss) at the meeting now. 2．The ancient building whose roof was badly damaged in the rainstorm __________________(repair) now. 3．The sports meeting ________________(hold) now in our school. 4．The classroom ______________________(decorate) with balloons and flowers right now. 5．These birds ______________________(preserve) well here at the present time. is being discussed is being repaired is being held is being decorated are being preserved Great efforts are being made to enable human and wildlife live in harmony. When the buying stops, the killing can too. $$