Unit 2 Wildlife Protection Discovering useful structures 现在进行时的被动语态 课件-2024-2025学年高中英语人教版（2019) 必修第二册

Unit2 Wildlife Protection Discovering useful structures 1 What do you know about wildlife protection? Step 1. Lead in Our planet’s wildlife is dying out at an alarming rate. Between 150 and 200 species are becoming extinct every day. Wildlife is being hunted. What measures are being taken to help them? 2 Step 2. Presentation To report an ongoing event. What are the words in red used for? Our planet’s wildlife is dying out at an alarming rate. Between 150 and 200 species are becoming extinct every day. Wildlife is being hunted. What measures are being taken to help them? The Present Continuous Passive Voice 现在进行时 被动语态 2 1 现在进行时的被动语态 结构：am/is/are + doing 1. We are doing many things to protect the animals. 3. We are seeing the Tibetan antelopes next week. 2. We are observing the Tibetan antelopes these days. 一、present continuous tense 现在进行时 此时此刻正在进行的动作 表示现阶段在做的动作 表示即将发生的动作 5 结构：be + done 英语动词有两种语态： 主动语态 (the active voice) 被动语态 (the passive voice) 二、the passive voice 被动语态 A. 主动语态表示主语是动作的执行者 We planted the tree. B. 被动语态表示主语是动作的承受者 The tree was planted by us. 6 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…) 三、现在进行时的被动语态 1. 结构 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。 2. 定义 e.g.They are being hunted, illegally, for their valuable fur. (1) 肯定形式：主语 + be(am/is/are) ＋ being ＋ done The house is being painted. (2) 否定形式：主语 + be(am/is/are) ＋ not ＋ being ＋ done The trees are not being watered. (3) 一般疑问形式：be(Am/Is/Are) ＋ 主语 ＋ being ＋ done ？ Am I being watched over ? (4) 特殊疑问句形式：特殊疑问词 + be(am/is/are) + 主语 + being + done ？ 3. 基本结构 When is the wall being painted ? 8 【即时演练1】——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 e. g. Mary is being interviewed now. 4. 基本用法： ① 表示说话时正在进行的被动动作，句中常有now, right now, at the moment, at present 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) e. g. These animals are being hunted at such a high speed that they will disappear soon. 10 e. g.A party is being held tonight. ③ 现在进行时的被动语态有时可表示按计划或安排将要进行的一个被动动作(此种用法仅限于少数及物动词, 如: hold, take等)。 9 ④ 表示一种经常性的被动行为,常与always, constantly, frequently 等词连用,往往带有赞扬、羡慕、埋怨、讨厌等感情色彩。 e. g. Children of our neighbors are always being praised by our parents. 小试牛刀 1、They are living with their parents for the moment because their own house (rebuild). 2、I feel very surprised that the window of our classroom (often, break). 3、I'm going to a photographic exhibition which (hold) these days. 4、With the development of society, many traditional ideas (change) now. is being rebuilt is often being broken is being held are being changed e. g. Look！The children are being taken care of by their aunt. e. g. Children are taken good care of at school. 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一个被动的动作，如果我们把being漏掉，即成为一般现在时的被动语态或系表结构。 注意事项 (一般现在时的被动语态) 14 注意事项 2、许多 “不及物动词+副词或介词” 或“及物动词+宾语+介词”构成的短语动词，相当于及物动词，可以有被动语态。变被动语态时不可漏掉介词或副词: laugh at, operate on, look after, take care of, think of, talk about, hand in, catch sight of, make use of, pay attention to... e. g. My sister is being taken care by grandma. e. g. The patient is being operated now. of on 玛丽, 过来, 有你的电话。 Mary, come here. You are being wanted on the phone. Mary, come here. You are wanted on the phone. 3、没有进行时的被动语态： 一些表示状态、心理活动、拥有、存在等的动词，如have, want, need, like, realize等，一般不用于进行时的被动语态，而常用一般现在时的被动语态表示此时此刻或目前主语正在承受谓语动词表示的动作。 注意事项 10 4、“be + under / in + 名词”结构有时可相当于现在进行时的被动语态。  is being attacked  The city is under attack at the moment.  1、这个问题正在会议上讨论。 2、电话现在正在被使用。 注意事项 The problem is under discussion (= is being discussed) at the meeting. The telephone is in use (= is being used) now. 11 My computer is under repair.＝My computer is being repaired. Translation: 1、专家正在讨论停止非法狩猎的方法。（illegal） The ways to stop illegally hunting are being talked about by scientists. 2、本周末将举行一场庆祝他成功的活动。（celebrate） A celebration is being held this weekend for his success. 3、随着人口的增加，我们需要更多的土地。（population） With the population increasing，more land is needed. 4、我的电脑正在修理中（repair） 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 part__________________(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 Thanks 21 Simple（一般） Continuous（进行） Present （现在） do/does Tense is/am/are doing Perfect（完成） Perfect continuous（完成） Past （过去） Future （过去） The past future （过去将来） have/has done have/has been doing did was/were doing had done Had been doing will/shall do will/shall be doing will/shall have done will/shall have been doing should/would do should/would be doing should/would have done should/would have been doing $$