Unit 2 Wild life Protection Discovering Useful Structures ppt课件-（2019）新人教版高中英语必修第二册.pptx

1、UNIT 2 WILDLIFE PROTECTIONDiscovering Useful StructuresLanguage points1核心词汇 1 reduce vt. 减少，缩小，降低同decrease v. 减少反increase v. 增加；增长 due to due to 由于，因为由于，因为 be due to do sth. be due to do sth. 预计要做某事预计要做某事 be due for be due for 应得到应得到 【词语辨析】【词语辨析】due todue to，owing toowing to，because ofbecause of与与 t

2、hanks to thanks to GrammarUnderline the present continuous passive voice in the sentences and Underline the present continuous passive voice in the sentences and discuss its function. discuss its function. African elephants are being hunted. African elephants are being hunted. What is being done to

3、help them? What is being done to help them? What measures are being taken to help them? What measures are being taken to help them? Find more sentences with the same verb form in this unit. Find more sentences with the same verb form in this unit. They are being huntedThey are being hunted，illegally

4、illegally，for their valuable fur. for their valuable fur. Much is being done to protect wildlife. Much is being done to protect wildlife. P18P18课后习题课后习题1 11 Im（working/being worked）at home today because my office is （painted/being painted）. 2The alarming report is（written/being written）. It will be

5、finished soon. 3What 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 wildlife are（reduced/ being reduced）

6、due to the cutting of trees. 课后习题课后习题2 2Choose the suitable verb forms to complete the sentences. Choose the suitable verb forms to complete the sentences. 据报道由于，因为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

7、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 e

8、ven 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? 课后习题课后习题 3 3Liu Tao would like to express his concern over the wetland in his Liu Tao would like to express his co

9、ncern over the wetland in his hometown. Help him finish the passage with the present continuous hometown. Help him finish the passage with the present continuous passive voice of the verbs in brackets. passive voice of the verbs in brackets. are being caughtare being soldare being killedis being des

10、troyedare being coveredis being polluted 1A new library_(build) in our school. It will open next year.1A new library_(build) in our school. It will open next year.2 Conservation programmes for wild animals_ (discuss) in Australia now.2 Conservation programmes for wild animals_ (discuss) in Australia

11、 now.3 What _(do) in your town to protect local wildlife?3 What _(do) in your town to protect local wildlife?4 Dont worry. Measures_(take) to stop such a thing from happening 4 Dont worry. Measures_(take) to stop such a thing from happening again.again.5 I _ (tell) that my ID and password are not wo

12、rking. What should I do 5 I _ (tell) that my ID and password are not working. What should I do now?now?6 Mum, my computer _ (fix). Can I use yours for a while?6 Mum, my computer _ (fix). Can I use yours for a while?7 It is believed that many plant species _ (threaten) with 7 It is believed that many

13、 plant species _ (threaten) with extinction.extinction.(WORKBOOK (WORKBOOK P68 P68 EX. 1EX. 1) )Complete the sentences with the correct forms of the given verbs.Complete the sentences with the correct forms of the given verbs.is being built are being discussed is being done are being taken am being

14、told is being fixed are being threatened 1 The zoo is opening a new area for the two baby elephants.1 The zoo is opening a new area for the two baby elephants.2 The doctors are not examining the patient.2 The doctors are not examining the patient.3 They are raising more funds for research into wildl

15、ife protection.3 They are raising more funds for research into wildlife protection.4 The city is setting up a new nature reserve for endangered animals.4 The city is setting up a new nature reserve for endangered animals.5 Today we are completing our writing task online.5 Today we are completing our

16、 writing task online.(WORKBOOK (WORKBOOK P68 P68 EX. EX. 2)2)Rewrite the sentences using the present continuous passive voice.Rewrite the sentences using the present continuous passive voice.A new area is being opened for the two baby elephants（by the zoo）. The patient is not being examined（by the d

17、octors）. More funds are being raised for research into wildlife protection. A new nature reserve is being set up for endangered animals in/by the city. Today our writing task is being completed online. The balance of nature on our planet_(threaten) as a large number of species_ (drive) to extinction

18、. 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. Animal habitats _(destroy) as humans search for more natural resources to consume (消费). More land_ (also use) for grow

19、ing 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(WORKBOOK (WORKBOOK P69 EXP69 EX. 4. 4) )Read and complete the passage about wildlife protection with Read and complete t

20、he passage about wildlife protection with the correct verb forms in brackets.the correct verb forms in brackets.is being threatenedare being drivenare being endangeredare being destroyedis also being usedare being producedcreatedare being released into the air, water, and soil. The whole of nature_

21、(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 things on the earth.(WORKBOOK (WORKBOOK P69 P69 EX.

22、 4EX. 4) )is being affectedis still being doneare being designed 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 Tibet. I worry about the ef

23、fect this will have on the local wildlife. _We should all think about this.(WORKBOOK (WORKBOOK P69 P69 EX. 5EX. 5) )Complete the speech with the correct sentences or clauses. Then Complete the speech with the correct sentences or clauses. Then discuss possible solutions in groups.discuss possible so

24、lutions in groups. A A Visitors are being told to pay more attention to protecting the environment.B B this beautiful countryside is being spoiled by careless visitorsC C paper and plastic bags are still being thrown away by many tour groupsD D How can we make visitors more aware of the damage that

25、is being done to the environment?E E I felt I was in a fairyland(仙境)EABCD现在进行时的被动语态1 构成肯定式：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? 2 2 用法用法（1 1）表示说话时正在进行的被动动作。）表示说话时正在进行的被动动作。She is being examined by the doct

26、or now. She is being examined by the doctor now. 她现在正在接受医生的检查。她现在正在接受医生的检查。（2 2）表示现阶段正在进行的被动动作，说话时不一定在进行。）表示现阶段正在进行的被动动作，说话时不一定在进行。A new gallery is being built. A new gallery is being built. 一个新的画廊正在建造中。一个新的画廊正在建造中。（3 3）表示一种经常性的被动行为，常与）表示一种经常性的被动行为，常与 always always，constantlyconstantly，frequently fr

27、equently 等表示频度的等表示频度的副词连用，带有赞赏或厌恶等感情色彩。副词连用，带有赞赏或厌恶等感情色彩。The girl is always being praised by her teachers. The girl is always being praised by her teachers. 这个女孩总是受到老师的表扬。这个女孩总是受到老师的表扬。（4 4）表示按计划或安排将要发生的被动动作（仅限于少数及物动词）。）表示按计划或安排将要发生的被动动作（仅限于少数及物动词）。Some classical music is being played by them next.

28、Some classical music is being played by them next. 下面将由他们演奏一些古典音乐下面将由他们演奏一些古典音乐3 3 注意事项注意事项（1 1）一些表示状态、心理活动、拥有、存在等的动词，如）一些表示状态、心理活动、拥有、存在等的动词，如 have have，wantwant， need need，lovelove，realize realize 等，一般不用于进行时，因而也没有进行时的被动语态，而常用一般现在时的被动等，一般不用于进行时，因而也没有进行时的被动语态，而常用一般现在时的被动语态表示此刻或目前主语正承受谓语动词表示的动作。语态表示此

29、刻或目前主语正承受谓语动词表示的动作。MaryMary，come here. Youre being wanted on the phone. come here. Youre being wanted on the phone. （）（） MaryMary，come here. Youre wanted on the phone. come here. Youre wanted on the phone. （） 玛丽，过来，有你的电话。玛丽，过来，有你的电话。（2 2）少数动词用于现在进行时态，用主动形式表示被动含义，如）少数动词用于现在进行时态，用主动形式表示被动含义，如 print pr

30、int，cookcook，fryfry，hanghang，buildbuild，make make 等。等。The meat is cooking. The meat is cooking. 肉正煮着。肉正煮着。 （3）“be + in /on /under + 名词”常含被动意义，可代替现在进行时的被动语态。The problem is under discussion now. = The problem is being discussed now. 现在这个问题正在讨论中。（4）因为被动语态的基本结构为 be done，不少学生误将现在进行时 的被动语态结构“am/is/are + b

31、eing done”写成一般现在时的被动语态结构“am/is/are + done”。Look! The road is built.（） Look! The road is being built.（） 瞧，这条道路正在建设中。The dinner is prepared by Christina.（） The dinner is being prepared by Christina.（） 晚宴正由克里斯蒂娜准备着。【学法点拨】 现在进行时的被动语态与现在分词的被动式 being done 均可表示正在进行的被动动作，因此它们之间可以相互转换。The man who is being su

32、rrounded by crowds is a famous architect. =The man being surrounded by crowds is a famous architect. 被人群包围的那个人是一位著名的建筑师。词汇复现 【误区警示】 非谓语动词的被动形式，表达不同时间的被动意义，作用也不一样。 to be done 不定式的被动形式，表将来和被动 to have been done 不定式完成式的被动形式，表完成和被动 being done 现在分词的被动形式，表进行和被动 having been done 现在分词完成式的被动形式，表完成和被动 . . 单句语法

33、填空单句语法填空（1 1） Look! The baby Look! The baby （taketake）care of by her aunt. care of by her aunt. （2 2） A new house A new house （decoratedecorate）outside our school at present. outside our school at present. （3 3） Now Now，good measures good measures （taketake） to save the endangered to save the endang

34、ered animals by the government. animals by the government. （4 4） Hi Hi，Im Alice. Look at this photoa snowman Im Alice. Look at this photoa snowman （makemake）by me. by me. （5 5）At present a new statue At present a new statue （carvecarve）. . （6 6） Is the bridge Is the bridge （buildbuild）now? now? （7 7

35、）To our delightTo our delight，many endangered species many endangered species （protectprotect）by by the government now. the government now. is being taken is being decorated are being taken is being made is being carved being built are being protected（8）Many interesting experiments （carry）out these

36、days. （9）Since your bike （fix），you can use mine. （10）词汇复现Daisy has found that a lot of antelopes （hunt）and killed for the wool beneath their stomachs now. （11）The new generation of computers，with artificial intelligence， （develop） and perfected now. （12）I dont suppose the police know who did it. Wel

37、l，surprisingly they do. A man has been arrested and （question）now. （13）Have you handed in your schoolwork yet? Yes，I have. I guess it （grade） now. （14）Whats that noise? Oh，I forgot to tell you. The new machine （test）. are being carried is being fixed are being hunted are being developed is being que

38、stioned is being graded is being tested . . 完成句子完成句子 （1 1）The sports meeting The sports meeting （正在被举办）（正在被举办）in the new stadium. in the new stadium. （2 2）The giant machine The giant machine （被拆卸）（被拆卸）at the moment and it will be at the moment and it will be set up in the new workshop in the near fu

39、ture. set up in the new workshop in the near future. （3 3） The classroom The classroom （正被装饰）（正被装饰）with balloons and flowers right with balloons and flowers right now and the students are preparing for the New Year party. now and the students are preparing for the New Year party. （4 4） The window of

40、 our classroom The window of our classroom （经常被打破）（经常被打破）. . （5 5） The sum these computers will cost us The sum these computers will cost us （正在计算中）（正在计算中）. . （6 6）With the population increasingWith the population increasing，more land more land （需要）（需要）. . is being held is being taken apart is being decorated is frequently being broken is being calculated is neededTHE END