1、英语24字整体教学Unit 2Wildlife ProtectionPeriod 4Discovering Useful Structures学习目标1.To have a good understanding of the structure of the present continuous passive voice and its function.2.To master the usage of the present continuous passive voice through self-study and practice.3.To use the present conti
2、nuous passive voice flexibly in the real context.课堂探究Part Observation and analysisPay attention to the underlined parts:the present continuous passive voice,change them into active voice and compare the differences in meaning.1.African elephants are being hunted.2.What is being done to help them?3.W
3、hat measures are being taken to help them?Differences:Part The structures and the functionsActivity 1Summarize the structures of the present continuous passive voice.肯定结构否定结构一般疑问结构特殊疑问结构Activity 2Observe the following sentences and figure out the functions of the present continuous passive voice.1.M
4、y sister is now being interviewed.Function:2.Many interesting experiments are being carried out these days.Function:3.He is always being praised by the leader.Function:4.A celebration is being held this weekend for his success.Function:被动语态的使用情境:不知道或者不需要提及动作的发出者;强调动作的承受者。Part ConsolidationActivity 1
5、Choose the suitable verb forms to complete the sentences.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
6、(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 2Rewrite the sentences using the present continuous pas
7、sive voice.(Workbook P68 Using Structures Exercise 2)1.The zoo is opening a new area for the two baby elephants.2.The doctors are not examining the patient.3.They are raising more funds for research into wildlife protection.4.The city is setting up a new nature reserve for endangered animals.5.Today
8、 we are completing our writing task online.Activity 3Liu Tao would like to express his concern over the wetland in his hometown.Help him finish the following passage with the present continuous passive voice of the verbs in brackets.In the wetland of my hometown,there are many different kinds of ani
9、mals,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 foo
10、d 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?Activity 4Complete the speech with the correct sentences
11、 or clauses.Then discuss possible solutions in groups.(Workbook P69 Using Structures Exercise 5)Hello,everyone! Ive just come back from a wonderful trip to Tibet.It was so beautiful there that .The scenery was so impressive and the air was so fresh and clean. However,.Cans, as they pass through Tibe
12、t.I worry about the effect this will have on the local wildlife.We should all think about this.A.Visitors are being told to pay more attention to protecting the environment.B.this beautiful countryside is being spoiled by careless visitorsC.paper and plastic bags are still being thrown away by many
13、tour groupsD.How can we make visitors more aware of the damage that is being done to the environment?E.I felt I was in a fairyland (仙境)Part Summary巧学助记主动语态变被动语态的原则:“三变”原则:原主变为by短语,原宾变为现主语,谓语主动变被动。“三不变”原则:原句意思不变,原句时态不变,原句主谓宾以外成分不变。核心素养专练.Complete the sentences with the correct forms of the given verb
14、s.(Workbook P68 Using Structures Exercise 1)1.A new library (build)in our school.It will open next year.2.Conservation programmes for wild animals (discuss)in Australia now.3.What (do) in your town to protect local wildlife?4.Dont worry.Measures (take) to stop such a thing from happening again.5.I (
15、tell) that my ID and password are not working.What should I do now?6.Mum,my computer (fix).Can I use yours for a while?7.It is believed that many plant species (threaten) with extinction.Read and complete the passage about wildlife protection with the correct verb forms in brackets.(Workbook P69 Usi
16、ng Structures Exercise 4)The balance of nature on our planet (threaten)as a large number of species (drive)to extinction.Some scientists predict that half of all our plants and animals will be extinct by 2100.The question is why these species (endanger).One of the main reasons is loss of habitat.Ani
17、mal habitats (destroy) as humans search for more natural resources to consume(消费).More land (also use) for growing crops or keeping livestock(家畜).In addition,massive amounts of waste (produce) by humans,which are polluting animal habitats.Harmful chemicals (create) by human activities are being rele
18、ased into the air,water,and soil.The whole of nature (affect) by human beings.However,much has been done and (still do) to save endangered species.Many programmes (design) to preserve the populations of endangered species.In my opinion,there is still hope that humans can live in harmony with all thi
19、ngs on the earth.Make small conversations with your classmates using the present continuous passive voice.参考答案课堂探究Part 1.Hunters are hunting African elephants.2.What are people doing to help them?3.What measures are people taking to help them?Differences:所强调的重点(主语)不同。Part Activity 1肯定结构be(am/is/are)
20、+being done否定结构be(am/is/are)+not+being done一般疑问结构be(am/is/are)+主语+being done特殊疑问结构特殊疑问词+be(am/is/are)+主语+being doneActivity 21.表示此时此刻正在进行的被动动作。2.表示现阶段正在进行的被动动作(该动作在说话的瞬间未必正在进行)。3.表示一种经常性的被动行为,常和always,constantly 等表示频度的副词连用,这种用法常常带有赞扬或厌恶的感情色彩。4.有时可表示按计划或安排将要进行的一个被动动作。Part Activity 11.working;being pa
21、inted2.being written3.being attacked4.being watched5.hunting;being hunted6.being reducedActivity 21.A new area is being opened for the two baby elephants (by the zoo).2.The patient is not being examined (by the doctors).3.More funds are being raised for research into wildlife protection.4.A new natu
22、re reserve is being set up for endangered animals in/by the city.5.Today our writing task is being completed online.Activity 3are being caught;are being sold;are being killed;is being destroyed;are being covered;is being pollutedActivity 4E;A;B;C;D核心素养专练.1.is being built2.are being discussed3.is being done4.are being taken5.am being told6.is being fixed7.are being threatened.is being threatened;are being driven;are being endangered;are being destroyed;is also being used;are being produced;created;is being affected;is still being done;are being designed- 5 -名师团队助你一臂之力
