Unit 3 Period 3 Discover useful structures ppt课件-（2022新）人教版高中英语选择性必修第三册.pptx

1、 Period 3 Discover useful structures Unit 3 Environmental protectionLead inLook at the sentences and discuss the differences between each pair.The expert said,From the position of its dead body, the bear appeared to havestarved and died.”The expert said that from the position of its dead body, the b

2、ear appeared to have starved and died.标点符号变化Lead inLook at the sentences and discuss the differences between each pair.The reporter asked,Will polar bears die out because of climate change?The reporter asked whether polar bears would die out because of climate change. 连词，时态，语序变化Lead inLook at the se

3、ntences and discuss the differences between each pair.The reporter asked, How can we save polar bears from extinction?”The reporter asked how we could save polar bears from extinction.时态，语序变化Lead inLook at the sentences and discuss the differences between each pair.“Lets work together to stop climat

4、e change, ”the expert said.The expert advised us to work together to stop climate change动词变化Task 1Fill in the blanks and summarise the rules for changing direct speech into indirect speech.1.“I dont want to set down a series of facts in a diary,” said Anne.Anne said that she to set down a series of

5、facts in a diary. 2.The boy said, “Im using a knife.”The boy said that he a knife.3.They said, We saw her in the street.”They said that they her in the street.didnt wantwas usinghad seen1.时态的变化直接引语向间接引语进行转化时，首先变化的是时态。通常是将宾语之中 的时态往后推一个时态，比如：一般现在时变为一般过去时,现在进行时变为过去进行时，一般过去时变为过去完成时。1.She said, “Did you

6、see him last night?” She asked me whether _ had seen him the night before. 2.“What do you want?” he asked me.He asked me what _ wanted.3.He said, “These books are mine.” He said that _ books were _.hisTask 1Fill in the blanks and summarise the rules for changing direct speech into indirect speech.It

7、hose2.代词的变化直接引语向间接引语的转换过程中有时候还会出现代词的变化，例如：指示代词this变为 that ； these变为those。物主代词以及人称代词也需要根据具体情况进行相应的改变。ITask 1Fill in the blanks and summarise the rules for changing direct speech into indirect speech.1.“I have lived here for two years,” she said . She said that she had lived for two years.there3.地点状语的

8、变化主要涉及的地点状语是here和there。直接引语变间接引语时，here变为there。如果已经是 there,则不变。thenTask 1Fill in the blanks and summarise the rules for changing direct speech into indirect speech.1.She said, It is nine oclock now. She said that it was nine oclock .2.Bob said, My sister was here three days ago.”Bob said that his sis

9、ter had been there three days _.3.She said, “I went there yesterday. She said that she had gone there _.before/earlierthe day before4.时间状语的变化now then, today that day, tonight that night, tomorrow the next day, yesterday the day before, this week (month, year .) 一 that week (month, year .), last week

10、 (month, year .) the week (month, year .) before, next week (month, year .) the next/following week (month, year .), two days (weeks, months, years .) ago two days (weeks, months, years .) before, so far by then1.The lawyer said, I will come this morning. The lawyer said that she would _that morning

11、.goTask 1Fill in the blanks and summarise the rules for changing direct speech into indirect speech.5.方向性动词的变化一般来说，come变为go, bring变为take,但不是必须的，要分场合分地点。如果场合和地 点没有发生变化，也可以不变。1.“Is everybody here?” The teacher asked. The teacher asked if/whether _ there.2.The teacher asked, “Where have you been? The t

12、eacher asked me where _ been.I hadeverybody wasTask 1Fill in the blanks and summarise the rules for changing direct speech into indirect speech.6.语序的变化一般疑问句和特殊疑问句的间接引语一般要用陈述句的语序。一般疑问句添加if/whether后 使用陈述语序，特殊疑问句则在疑问词后使用陈述语序。Task 2Match each word with each meaning.behalfnuclearsensitivejungleA.of or pe

13、rtaining to classified information or matters affecting national securityB.as the agent of or on someones partC.an area of tropical forest where trees and plants grow very thicklyD.using, producing or resulting from nuclear energyTask 3 Here are some statements and questions by children who attended

14、 scientific lectures. Guess who they were talking to and then change the sentences into indirect speech.NameStatements/QuestionsDianeDiane asked _ .Diane asked_.MarthaMartha said/told me _.Martha said/told me _.what had made Hurricane Katrina unusual if/whether it had been the worst natural disaster

15、 in American history that she wanted to become a scientist and help the world that she was doing a project on behalf of her school about global warmingTask 3 Here are some statements and questions by children who attended scientific lectures. Guess who they were talking to and then change the senten

16、ces into indirect speech.NameStatements/QuestionsBobBob asked _.Bob asked _.LauraLaura asked _.Laura asked _.VincentVincent said/told me_. Vincent asked_.why nuclear power was such a sensitive topic if/whether they could explain how the nuclear disaster had happened. how many animals had disappeared

17、 because of human hunting. what we could do to help wild animalsthat he had never been to the Amazon Jungle if/whether scientists would discover new species thereTask 4Work in groups.Do a survey on what your group members are doing to help the environment and what else they can do. Then report to th

18、e class. Michelle I always use my cloth bag when I go shopping,rather than use plastic bags.JackI often wlk or ride a bike instead of taking a taxi. SallyDont print out documents unless really necessary.JoeWould it be best to share books with others?Task 4 I asked my group members what they did to l

19、imit the amount of carbon dioxide produced in their daily lives. Jack told me that he often walked or rode a bike instead of taking a taxi. Joe advises us to share books with others. Sally asked us Work in groups.Do a survey on what your group members are doing to help the environment and what else

20、they can do. Then report to the class. not to print out documents unless really necessary.Michelle said that she always used her cloth bag when she went shopping,rather than use plastic bags.Task 5 I heard over the radio that. The reporter said that. It was announced that. The authorities warned tha

21、t. The expert advised that. The researchers estimated that. The company claimed that. The police confirmed that.Work in pairs.Report a piece of news that you heard today to your partner .The following expressions may help you.Task 6 I heard over the radio that we could recycle old clothes at the loc

22、al school. The reporter said that many people had attended the meeting about local environmental issues. It was announced that a charge for plastic bags would be introduced next year.The authorities warned that there would be strict fines on anyone breaking the new environmental laws. The expert adv

23、ised that action would be necessary in the next 12 years to stop global temperatures rising too much.Show timeTask 6 The researchers estimated that the glacier had decreased in size since last year. The company claimed that they had cut their factory s emissions by over 50%.The police confirmed that

24、 the gang had been responsible for the illegal waste dumping.Show timeLanguage points1.sensitive 考查热度【热点品味】sensitive adj. 敏感的；善解人意的； 灵敏的【教材原句】 Why is nuclear power a sensitive topic? 为什么核能是一个敏感话题？【实例品读】 He is a sensitive friend of mine.他是我的一个善解人意的朋友。Compared with adults, children are more sensitive

25、to others feelings.与成人相比，孩子们对别人的感情更敏感。【热点归纳】be sensitive to 对敏感sensitively adv. 敏感地；易感知地Language points【考点精练】单句语法填空It is obvious that she is very sensitive _ what you said.Compared with his sister, Jerry is even _ (sensitive) to emotional and relationship problems.完成句子Donna _ strong smells.唐娜对强烈的气味很

26、敏感。Some plants _ pollution that they can only survive in a perfectly clean environment.有些植物对污染如此敏感，以至于它们只能在非常干净的环境里生存下去。tois sensitive tomore sensitiveare so sensitive toLanguage points2.on behalf of 考查热度【热点品味】on behalf of 代表；(代替)某人【教材原句】 Im doing a project on behalf of my school about global warmin

27、g. 我代表学校做一个关于全球变暖的项目。【实例品读】 Please accept my apology on behalf of the hotel.请接受我代表酒店向您道歉。They presented the Queen with a bouquet on behalf of the women students.她们代表女学生向女王献花。【热点归纳】 on behalf of sb. /on sb. s behalf 代表(或代替)某人；为帮助某人； 因为某人；为了某人 in behalf of sb. /in sb. s behalf 为帮助某人Language points【考点精

28、练】单句语法填空Im glad to put on a performance here on behalf _ our school.Dont trouble to do it on _ (we) behalf.ofourExercises变直接引语为间接引语1He said，“My brother doesnt want to go there. ”He told me _ brother _ want to go there.2He said to me, “Did you see him last night？”He asked me whether I had seen him _.

29、3Mary said to me，“Ill come again tomorrow. ”Mary _ me that _ come again _ _.didntthat histhe night beforetoldshe wouldthe next /following dayExercises变直接引语为间接引语4“Can you swim, John？” he asked.He asked John _ swim.5“Will Peter play basketball？”I wanted to know.I wanted to know _ Peter _ basketball.6“

30、Who has been to Beijing？” the teacher asked.The teacher asked _ been to Beijing.7“Come here, Tom，” Lucy asked Tom.Lucy asked Tom _.whether/ifif/whether he couldwould playwho hadto go thereExercises变直接引语为间接引语8“The earth goes around the sun，” the scientist said.The scientist said _ the earth _ around

31、the sun.9The teacher said to me, “Dont be late again. ”The teacher advised _.10Peter said，“ What a fine day it is！”Peter said _. /Peter said _.goesthatme not to be late againwhat a fine day it washow fine the day wasExercises单句语法填空1I asked him _ he would stay at home or go out for hiking.2Sorry, wha

32、t did you say just now?I asked _ I could get to the station.3The actor said he _ (be) born in 19844She asked me_ I had returned the books to the library, and I admitted that I hadnt.5Yesterday he told me that he had met his uncle two years _ (ago).howwhether waswhether/ifbeforeExercises单句语法填空6He tol

33、d us he _ (attend) a concert three days _ (ago).7The teacher said that practice _ (make) perfect.8Who called just now, Sam?Its Terry. He asked if Alice _ (be) in.9What did the teacher say?He told me not _ (late) again.10The teacher requested us not _ so much noise.beforehad attendmakeswasto be lateto makeHomework Do Exercises on P76of Workbook .