Unit 3 Sea Exploration Using language Reading for writing写作（ppt课件） -2024新人教版（2019）《高中英语》选择性必修第四册.pptx

1、B.新人教选择性必修4B.uTo analyze the arguments and evidence in the texts.uTo express your opinions on sea exploration.uTo learn to write an argumentative essay with the help of PEEL method.B.Part 1B.uWhy do people explore the sea?un?Generate electricityExploit resourcesdiscover new speciesB.Part 2B.The ocea

2、n is a treasure.Just as Xi Dada says,oceans provide a breeding ground for life,connect the world and the promote development.Despite regular discoveries about the ocean,much remains unknown.Scientists predict that 95%of the ocean is unmapped and unexplored.So human being is keeping on exploring the

3、ocean.However,there are arguments about sea exploration.B.Part 3B.Skim the two texts and answer the questions.123What is the content of the two passages about?What is the text type of the two passages?What are the three parts of an argumentative essay?Four types of essay 1.Narrative 2.Descriptive 3.

4、Expository 4.ArgumentativeB.Argumentative essay It is about the sea exploration.Three parts of an argumentative essayArgument,evidence,and restatement/a call to action.B.Argumentative essay It is about the sea exploration.Three parts of an argumentative essayArgument,evidence,and restatement/a call

5、to action.B.Skim Text 1 and divide it into three parts.Argument(part 1)Evidence(part 2)Restatement(part 3)Sea exploration caused problemsPollutionMiningOverfishingLess exploration&more protectionB.ArgumentEvidenceSea exploration is importantScientific researchResource managementThe survival of manki

6、ndRecommendationmanage the balance between sea protection and economic needsSkim Text 2 and divide it into three parts.B.ArgumentEvidenceArguments&EvidenceText 1Exploration causes pollution.Deepwater Horizon oil spillPlastic pollutionMining for resources is damaging.It hurts the Arctic.Burning fossi

7、l fuels adds to climate change.Overfishing is an issue.Whales and dolphins are hunted.Banned,but some countries still doing it.Find the arguments and evidence in the two texts.B.Text 2ArgumentEvidenceSea exploration is important for our future.Scientific research ships can helpaddress important issu

8、es like climate change.Understanding more about the sea will also help us manage its resources better.New medicines,food resources and energy.Predict events such as earthquakes.We need new resources for future development.Vast amounts of resouces may be under the sea and ice.Arguments&EvidenceB.Text

9、 _Look at the two charts below and decide which one supports which text.2Text _1B.Part 3B.In groups,discuss the following questions and take notes.1.What is your opinion about sea exploration?Do you agree with one argument more than the other?I think sea exploration is a wonderful idea,because even

10、if there are no immediate rewards for it,to explore and find out more about our world is always a good thing.2.Has your opinion changed after reading the two texts?Why or why not?Yes,my opinion has changed.Before reading Text 1,I did not know that sea exploration could add to sea pollution,via deep

11、sea drilling for example.B.3.Are there any other aspects of sea exploration not mentioned that you think are important?We do not know what we dont know;We need to explore the ocean so that we can better understand issues such as acidification which leads to seawater to become more acidic,and how to

12、fight these problems;Studying the ocean causes the creation of new technologies that can help us in other areas.B.Part 4B.Based on your note,write an argumentative essay on sea exploration,expressing your opinions with supporting facts.1)The following questions may help you.uWhat is the purpose of s

13、ea exploration?uHow does sea exploration help us to protect the sea?uHow does sea exploration cause damage to the sea?uIs there a good balance between protection and exploitation?B.1)The following questions may help you.sea exploration purpose?damage to the sea?protection to the sea exploitation how

14、 to balance?B.2)Use the PEEL method to help structure your argument.Point What point do you want to make?EvidenceWhat facts and examples can you find to support your point?How reliable are the sources?ExplanationExplain how the facts support your opinion and show other opinions to be incorrect.LinkC

15、onnect this point to the next point,or back to the main point of the essay or paragraph.B.3)Write your draft and exchange it with a partner.Use the checklist to help each other revise the drafts.YesNoIs the point clear enough?Are there any examples or facts that support the argument strongly?Is ther

16、e any explanation on how the evidence supports the opinion?Are there some connectives linking one point to another?B.Part 5Useful ExpressionsB.Many nations have been faced with the problem of.Recently the problem has been brought into focus.Recently the issue has aroused great concern among.Nowadays

17、 there is a growing concern over.Faced with.quite a few people argue that.According to a recent survey.Argument B.Some people think/believe that.,other argue/claim that.The opposite/reverse is.Obviously it has both advantages and disadvantages However,just as every coin has two sides,.has its disadv

18、antages It play(s)an important rolepart in.With the development of our economy and society，pollution is more and more seriousEvidenceB.From what has been discussed above,we can draw the conclusion that.It is high time that.We should take measures to control the rapidly increasing world population Th

19、e government decided to take strong measures against.It is necessary that steps should be taken to.There is no easy method,but.might be of some help.To solve the above-mentioned problem,we must.In summary,if we continue to ignore the above-mentioned issue,more problems will crop up.RestatementB.Part

20、 3Sample WritingB.Even though the oceans make up about 70%of the earths surface,more than 80%of the oceans remain unexplored.While some people say that we should not explore the oceans,their reasoning is not very sound.Exploring is not the same as exploiting.When we explore a place,we go just to see

21、 and understand what is there.We should explore the ocean,first and foremost,because we do not know what we do not know.We thought we knew many about the ocean,but we were wrong.There could be life forms in the ocean,for example,that fit none of the neat categories we have for life while we have no

22、clue that they even exist.B.This brings up the second point.We already know many things about the ocean,but we need to learn more.A good example is ocean acidification.We know that it is causing coral to die.We know that using less fossil fuel would cause the process to slow down.However,we need to

23、learn more to find out how to stop it.We need more research to see what is going on,and to come up with plans and solutions.B.Finally,to do this research,we have to enter an extreme environment not very friendly to humans.This requires the development of new technologies that can also benefit us in

24、other areas.For example,in many ways,the deep ocean resembles outer space.The technologies can benefit each other.For another instance,the technology of a mechanical arm to collect samples with has been used in factories and development of artificial limbs for humans.B.All in all,there are many good reasons to explore the oceans.If we care about science,about protecting our oceans,and about developing new technologies,we need to do all we can to support ocean exploration.