Unit 2 Wildlife ProtectionPeriod 3 Discovering Useful Structures （ppt课件） -2023新人教版（2019）《高中英语》必修第二册.pptx

1、Unit 2Period 3 Discovering Useful Structures(英语英语 )ENGLISHENGLISH新 课 导 入Simple（一般）Continuous（进行）Present（现在）do/doesTenseis/am/are doingPerfect（完成）Past（过去）Future（将来）The past future（过去将来）have/has donedidwas/were doinghad donewill/shall dowill/shall be doingwill/shall have doneshould/would do should/wou

2、ld be doingshould/would have done新知讲授新知讲授课堂总结课堂总结学习目标学习目标1）能理解现在进行时的被动语态的结构及其用法；2）能用现在进行时的被动语态谈论野生动物保护。新知讲授新知讲授课堂总结课堂总结学习目标学习目标课 堂 学 习Underline the present continuous passive voice in the sentences and discuss its function.1.African elephants are being hunted.2.What is being done to help them?3.What

3、 measures are being taken to help them?Rewrite the three sentences to active sentences.Hunters are hunting African elephants.What are people doing to help them?What measures are people taking to help them?新知讲授新知讲授课堂总结课堂总结学习目标学习目标1.They are being hunted illegally for their valuable fur.2.Much is bein

4、g done to protect wildlife,but if we really want to save the planet,we must change our way of life.3.These large animals are being killed illegally for their body parts that are considered valuable.4.Billions of trees are being cut down every year to make paper for humans.Find more sentences with th

5、e same verb form in this unit.新知讲授新知讲授课堂总结课堂总结学习目标学习目标Learn the structures of present continuous passive voice.肯定句肯定句否定句否定句一般疑问句一般疑问句特殊疑问句特殊疑问句Try to summarize the structures of present continuous passive voice.be(am/is/are)+being donebe(am/is/are)+not+being donebe(am/is/are)+主语+being done特殊疑问词+be(a

6、m/is/are)+主语+being done新知讲授新知讲授课堂总结课堂总结学习目标学习目标1.Im(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 wa

7、tched)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.Choose the suitable verb forms to complete the sentences.新知讲授新知讲授课堂总结课堂总结学习目标学习目标 表示说话时

8、正在进行的被动动作，句中常用now,at the moment等时间状语。Learn more about the present continuous passive voice.As far as I know,he is now being treated in China.据我所知，他现在正在中国接受治疗。表示现阶段正在进行的被动动作，但说话瞬间未必正在进行。Many experiments are being carried out these days.最近许多实验都在进行着。新知讲授新知讲授课堂总结课堂总结学习目标学习目标 表示一种经常性的被动行为，常与always，consta

9、ntly，frequently等副词连用，往往带有夸奖，羡慕，埋怨，讨厌等感情色彩，I feel very amazed that the glasses of our living room are frequently being broken.我感到非常吃惊的是我们起居室的玻璃杯经常被打破。The little boy has made rapid progress recently and is always being praised by the teachers.那个小男孩最近进步很快，总是被他的老师表扬。新知讲授新知讲授课堂总结课堂总结学习目标学习目标Key wordsredu

10、ce rdjus vt./vi.减少；降低；reduce to 减少到 reduce by 减少了 reduce from to 从减少到e.g.These sunglasses are designed to reduce glare.这些太阳镜是为减少刺眼的强光而设计的。Costs have been reduced by 20%over the past year.过去一年，各项费用已经减少了20%。The number of employees was reduced from 40 to 25.雇员人数从40人减少到了25人。The skirt was reduced to 10 i

11、n the sale.在大减价期间，这条裙子减价到10英镑。新知讲授新知讲授课堂总结课堂总结学习目标学习目标due dju adj.到期的；预期的；应付的；n.应付款；应得之物 due to 由于 be due to do sth 预定/计划做某事e.g.Her success was due in part to luck.她的成功在某种程度上是由于运气好。The final instalment on the loan is due next week.贷款的最后一期付款下个星期到期My essays due next Friday我的论文下周五必须交。新知讲授新知讲授课堂总结课堂总结学习

12、目标学习目标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.think about:wildlifehabitatenvironment pollution.新知讲授新知讲授课堂总结课堂总结学习目标学习目标In the wetland of my hometown,there are many differ

13、ent 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 duc

14、ks _(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 caughtare being soldare being

15、 killedis being destroyedare being coveredis being polluted新知讲授新知讲授课堂总结课堂总结学习目标学习目标Discuss with your partner,and give some suggestions for Liu Tao.2.What can we do?Encourage more people to join in.Improve awareness of environmental protectionMake people know more about wetland.Contact with the gover

16、nment.Establish a volunteer group.Advocate the meaning of protecting wetland.新知讲授新知讲授课堂总结课堂总结学习目标学习目标In groups,discuss the questions below.Prepare to give a presentation of your ideas to the class.A:What do you know is being done in your neighbourhood to protect animals and plants?B:Well,the old tre

17、es in the park are being protected.A:Oh yes.They are being protected not only because they are the natural habitat for birds.C:Thats 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 themFor example:What do you know is being done in your neighbourhood to protect animals and plants?What suggesttions do you have?新知讲授新知讲授课堂总结课堂总结学习目标学习目标Objectam/is/are beingpast participle(by+Subject)+The present continuous passive voice: