Unit 2 Wildlife ProtectionDiscovering Useful Structure 【教材分析】The activity topic of this section is “report an ongoing event”, and the structure is the passive voice of present continuous tense. Rare wild animals are suffering from large-scale poaching, and species are on the brink of danger. Rescue operations are underway. “Being” and “suffering” are the meanings of the present progressive passive voice.The usage of present progressive passive voice is of great importance in writing a good discourse and appreciating some difficult language items, so it is vital to master it and use it flexibly in a context.【教學(xué)目標(biāo)】1. Motivate students to deepen the understanding of the usage of present progressive passive voice in a fixed context.2. Enable students to master the usage of present progressive passive voice and use it flexibly in a context.3. Lead students to construct sentences or appreciate sentences used master it and use it flexibly in a context.【教學(xué)重難點(diǎn)】1. Help students to appreciate the function of the usage of present progressive passive voice in a sentence.2. Instruct students to write essays using the proper usage of present progressive passive voice.【教學(xué)過(guò)程】[課前診斷]Look at the picture and tell me what workers are doing. What is the house being done?The workers are building a house.A house is being built by the workers.We’re being killed for the wool beneath our stomachs. And our fur is being used to make sweaters for people like you.We are being hunted for our ivories.Step 1: Read the sentences and sum up the meanings of the Present Continuous Passive Voice.1. Do you know any other endangered wildlife in China that is not being protected?2. We’re being killed for the wool beneath our stomachs.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：be being doneShe is being treated in China now.否定式：be not being doneMy computer is being repaired now.我的電腦正在修理中。一般疑問(wèn)式:Am/Is /Are+主語(yǔ)+ being + done…e.g.: Are these books being sent to Beijing?Is the wall being painted?特殊疑問(wèn)式：When   How  Where   Why  What  （Am/Is /Are+主語(yǔ)+ being + done…）Step II: When do we use the Present Progressive Passive Voice?①      表示說(shuō)話時(shí)正在進(jìn)行的被動(dòng)動(dòng)作。(now, at the moment)Actions are being taken to realize Chinese dream.②示現(xiàn)階段正在進(jìn)行的被動(dòng)動(dòng)作。    (說(shuō)話時(shí)不一定在進(jìn)行)The problem of food safety is being studied by scientists at present.③表示一種習(xí)慣的被動(dòng)行為(always, constantly )，帶有贊揚(yáng)、羨慕、討厭等感情色彩。Children of our neighbors are always being praised by our parents.④與某些情態(tài)動(dòng)詞連用表示對(duì)正在發(fā)生的動(dòng)作進(jìn)行推測(cè)。As a result of staying up late talking last night, Jimmy may be being scolded by his head teacher.Step 2. 難點(diǎn).1.像take care of, look after, talk about, think of等動(dòng)詞與介詞構(gòu)成的短語(yǔ)用于現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)時(shí), 其中的介詞不可省略。The ways to stop illegally hunting are being talked about. 阻止非法捕獵的方法正在研討中。2. “be (am/is/are)+under/in+n.” 有時(shí)可相當(dāng)于現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)。Many questions are under discussion. =Many questions are being discussed. 許多問(wèn)題正在被討論。3. 有時(shí)表“狀態(tài),心理活動(dòng),情感”等的動(dòng)詞,常用在一般現(xiàn)在時(shí)的被動(dòng)語(yǔ)態(tài)表示“正在進(jìn)行”。The runaway of the traffic accident is wanted by the police. 警方正在通緝交通事故的逃逸者。The plan is being discussed at the meeting now. 現(xiàn)在這個(gè)計(jì)劃正在討論過(guò)程中。A new law is being made to prevent endangered animals from extinction. 為了阻止瀕危動(dòng)物的滅絕新的法律正在制定中。Workers are cutting down some trees in the park. →Some trees are being cut down by workers in the park. (被動(dòng)語(yǔ)態(tài))→Where are some trees being cut down by workers? (特殊疑問(wèn)句)用現(xiàn)在進(jìn)行時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)改動(dòng)句子.現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)的基本結(jié)構(gòu)肯定結(jié)構(gòu) be(am/is/are)being done否定結(jié)構(gòu) be(am/is/are)+not+being done一般疑問(wèn)結(jié)構(gòu) be(am/is/are)+主語(yǔ)+being done特殊疑問(wèn)結(jié)構(gòu) 特殊疑問(wèn)詞+be(am/is/are)+主語(yǔ)+being done[課后鞏固]花式變換句式.They are building a modern school in his hometown.1. A modern school ______________ in his hometown. (改為被動(dòng)語(yǔ)態(tài))2. A modern school ______________ in his hometown. (把句①改為否定句) 3.__________________________ in his hometown? (把句①改為一般疑問(wèn)句)4.________________________________ (對(duì)句①就in his hometown進(jìn)行提問(wèn))【答案】1. is being built   2.isn’t being built   3.Is a modern school being built ?  4. What is a modern school being built? 

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