Unit 3 Discovering Useful Structures 课件- 高中英语人教版（2019）选择性必修第三册.pptx

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1、普通高中教科书,英语English选择性必修第三册,Unit 3 Environmental protection,Discovering Useful Structures,Direct Speech&Indirect Speech,Look at the sentences from the reading passage,a.An expert said “ More heat energy is trapped in the atmosphere and causes Earths surface temperature to rise quickly.”b.Experts c

2、laimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before.c. Climate scientists have warned that if we do not take appropriate actions，this warming trend will probably continue and there will be a higher price to pay.,Exploration and Summarize the structur

3、e,Working in groups. Look at the following sentences and discuss the differences between each pair. Summaries the rules for changing direct speech into indirect speech.,1、The expert said,“From the position of its dead body, the bear appeared to have starved and died.”2、The reporter asked ,“Will pola

4、r bears die out because of climate change?” 3、The reporter asked ,“How can we save polar bears from extinction?”4、“Lets work together to stop climate change,”The expert said.,1.The expert said,“From the position of its dead body, the bear appeared to have starved and died.”(Direct speech)2.The repor

5、ter asked ,“Will polar bears die out because of climate change?”(Direct speech),1、The expert said that from the position of its dead body, the bear appeared to have starved and died.(Indirect speech)2、The reporter asked whether polar bears would die out because of climate change. (Indirect speech),E

6、xploration and Summarize the structure,3、The reporter asked ,“How can we save polar bears from extinction?”(Direct speech)4、The reporter asked ,“Will polar bears die out because of climate change?”(Direct speech),3、The reporter asked whether polar bears would die out because of climate change.(Indir

7、ect speech)4、The expert advised us to work together to stop climate change (Indirect speech),Exploration and Summarize the structure,Summarize the structure.,1、The expert said,“From the position of its dead body, the bear appeared to have starved and died.”(Direct speech)2、The reporter asked ,“Will

8、polar bears die out because of climate change?”(Direct speech),The expert said that from the position of its dead body, the bear appeared to have starved and died. (Indirect speech),The reporter asked whether polar bears would die out because of climate change. (Indirect speech),Summarize the struct

9、ure.,3The reporter asked ,“How can we save polar bears from extinction?”(Direct speech)4、“Lets work together to stop climate change,”The expert said. (Direct speech),The reporter asked whether polar bears would die out because of climate change. (Indirect speech),The expert advised us to work togeth

10、er to stop climate change. (Indirect speech),The difference between direct speech and indirect speech.,Direct speech:,Indirect speech:,1). To report what exactly has been said2). The words usually appear in quotation marks,1).To report what has been said without using the exact words2).No quotation

11、marks,1.Change personal pronouns，(一主、二宾、三不变”即第一人称按照主句中的主语变化，第二人称按照主句中的宾语变化，第三人称一般不需要变化。),2.直接引语中的时态转换规则：,1.直接引语中的时间状语转换规则：,注意：如果在当天转述，时间状语不必改变。,3.直接引语中的指示代词转换规则：,this that,these those,4.直接引语中地点状语here在间接引语中用there。,注意事项：1.直接引语是陈述句，变为间接引语时，常变成由that引导的宾语从句。在口语中，that可以省略。He said，“I was cooking when the e

12、arthquake happened.”He said (that) he was cooking when the earthquake happened. 2.直接引语是客观事实、真理、规律等，变成间接引语时，时态不变。The teacher told his students, “The earth goes round the sun. ”The teacher told his students that the earth goes round the sun.,注意事项：3.直接引语是一般疑问句、选择疑问句或反意疑问句时，间接引语中用whether(.or .或.or not)或

13、if引导。He said，“Are you interested in English？”He asked (me) if/whether I was interested in English.注意：如果主句中谓语动词是said，则将其改为asked。,注意事项：4.直接引语为特殊疑问句时，间接引语仍用原句中的特殊疑问词来引导，其余的变化遵照直接引语和间接引语之间的转换规则来进行。“Whats your name？” he asked me.He asked me what my name was.注意：疑问句的直接引语变间接引语时，要把疑问语序变成陈述语序。),Exercises:Here

14、 are some statements and questions by children who attended scientific lectures. Guess who they were talking to and then change the sentences into indirect speech.,1、Diane asked,“What made Hurricane Katrina unusual?”2、Diane asked,“Was it the worst natural disaster in American history?”3、Martha said,

15、“I want to become a scientist and help the world.”4、Martha said,“I am doing a project on behalf of my school about global warming.”5、Bob asked,“Why is nuclear power a sensitive topic ?”6、Bob asked,“Could you explain how the nuclear disaster happened?”7、Laura asked,“How many animals have disappeared

16、because of human hunting ?”8、Laura asked,“What can we do to help wild animals?”9、Vincent said,“I have never been to the Amazon Jungle.”10、Vincent said,“Will scientists discover new species there?”,Exercises:Here are some statements and questions by children who attended scientific lectures. Guess wh

17、o they were talking to and then change the sentences into indirect speech.,1、Diane asked,“What made Hurricane Katrina unusual?”2、Diane asked,“Was it the worst natural disaster in American history?”3、Martha said,“I want to become a scientist and help the world.”4、Martha said,“I am doing a project on

18、behalf of my school about global warming.”5、Bob asked,“Why is nuclear power a sensitive topic ?”,Diane asked what had made Hurricane Katrina unusual.,Diane asked (me) if/whether it had been the worst natural disaster in American history.,Martha said/told t me ( that) she wanted to become become a sc

19、ientist and help the world.,Martha said/told me (that) she was doing a project.on behalf of my school about global warming.,Bob asked why nuclear power was a sensitive topic.,Exercises:Here are some statements and questions by children who attended scientific lectures. Guess who they were talking to

20、 and then change the sentences into indirect speech.,6、Bob asked,“Could you explain how the nuclear disaster happened?”7、Laura asked,“How many animals have disappeared because of human hunting ?”8、Laura asked,“What can we do to help wild animals?”9、Vincent said,“I have never been to the Amazon Jungl

21、e.”10、Vincent said,“Will scientists discover new species there?”,Bob asked (me) if/whether they could explain how the nuclear disaster had happened.,Laura asked me how many animals had disappeared because of human hunting.,Laura asked what we could do to help wild animals.,Vincent said/told me that

22、he had never been to the Amazon Jungle.,Vincent said if/whether scientists would discover new species there.,Speaking and cooperating:Work 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 the class.,Michelle : I always use

23、my cloth bag when I go shopping, rather than use plastic bags.Jack: I often walk or ride a bike instead of taking a taxi.Sally: Dont print out documents unless really necessary.Joe: Would it be best to share books with others.,Speaking and cooperating:Work in groups. Do a survey on what your group m

24、embers are doing to help the environment and what else they can do. Then report to the class.,I asked my group members what they did to limit the amount of carbon dioxide produced in their daily lives. Michelle told me that she always used her cloth bag when she went shopping, rather than used plastic bags. Sally ordered not to print out documents unless really necessary.,Finish exercise 2 and exercise 3 on page 5.,Homework,Thanks!,The end,