Unit 3 Sea Exploration Using language 写作-ppt课件--(2022)高中英语新人教版选择性必修第四册.pptx

1、UNIT 3 SEA EXPLORATIONUsing LanguageExpress your opinions on sea explorationanalyzes the arguments and evidence in the texts.express my opinions on sea exploration.learn to write an argumentative essay with the help of PEEL method.In this class,I willWhat are the advantages and disadvantages of sea

2、exploration?predict potential disastersdiscover new speciesdetect energy resourcesplastic wasteoverfishingoil leakingWhat are the advantages and disadvantages of sea exploration?Should the sea be explored?Should the sea be explored?benefits:1.new sources of food.2.We can get fossil fuels such as oil

3、,gas and coal.negative effects:1.Spilling oil into the sea causes pollution.2.plastic pollution Fast readingSkim the two texts and answer the questions below.1.What is the text type of the two texts?A.Narration(记叙文记叙文).B.Exposition(说明文说明文).C.Practical writing(应用文应用文).D.Argumentation(议论文议论文).2.What a

4、re the three parts in argumentative essay?argument论点论点;evidence论据论据;restatement重申重申/recommendation推荐推荐/a call to action号召号召1.What are the two authors opinions about the sea exploration?opposedsupportiveCareful readingcheck the arguments分论点分论点 and evidence论据论据 in text 1.1argument evidence21.Explorati

5、on causes pollution.Deepwater Horizon oil spill Plastic pollution2.Mining for resources is damaging.It hurts the Arctic.Burning fossil fuels adds to climate change.3.Overfishing is an issue.Whales and dolphins are hunted.Banned,but some countries still doing it.3P32 112Careful readingcheck the argum

6、ents and evidence in Text2.argument evidence1.Sea exploration is important for our future.Scientific research ships can help address important issues like climate change.2.Understanding more about the sea will also help us manage its resources better.New medicines,food resources and energy.Predict e

7、vents such as earthquakes.33.We need new resources for future development.Vast amounts of resources may be under the sea and ice.：Main structure Argumentative Essay Main Point(Para.1)Body(Para.2 4)Conclusion(Para.5)supporting ideasRead for the structure8045361801020304050607080901970-19791980-198919

8、90-19992000-2009Decline in oil spills1979 1984 1989 1994 1999 20042009Text 2Text 1Global trends in the state of world marine fish stocksCharts for the texts When people talk of exploring the sea more,they usually mean exploiting it.仿写：当人们谈到城市建设时，那就意味着要开发土地。Opponents may be concerned,but sea explorat

9、ion is important for our future.仿写：反对者有可能会对此很担心，但开发土地对我们的未来是非常重要的。when people talk of/when it comes to urban construction more,they usually mean exploiting the land.Opponents/Objectors may be concerned,but land exploration is important for our future.According to the sentences above,what is the text

10、 type?Appreciation of the languageDiscussion 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 if there are no immediate rewards for it,to e

11、xplore and find out more about our world is always a good thing.Group discussion2.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 sea drilling for example.Disc

12、ussion 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 fight these problems

13、;Studying the ocean causes the creation of new technologies that can help us in other areas.Discussion Pre-writing 4.Based on your note,write an argumentative essay on sea exploration,expressing your opinions with supporting facts.1)The following questions may help you.What is the purpose of sea exp

14、loration?How does sea exploration help us to protect the sea?How does sea exploration cause damage to the sea?Is there a good balance between protection and exploitation?Argument/Point What argument/point do you want to make?Evidence What facts and examples can you find to support your point?How rel

15、iable are the sources?Explanation Explain how the facts support your opinion and show other opinions to be incorrect.Link Connect this point to the next point,or back to the main point of the essay or paragraph.2)Use the PEEL method to help structure your argument.Pre-writing Group work Even though

16、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 and understand what is there.

17、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 clue that they even exist.Argu

18、mentLink Point Evidence ExplanationExplanationSample 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

19、 down.However,we need to 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.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

20、can also benefit us in 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.Link Link

21、 Point Point Evidence Evidence ExplanationExplanationSample 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.Link Point Evidence Sample 假定你是某校的

22、宣传委员李华，应邀为学校网站英文版写一假定你是某校的宣传委员李华，应邀为学校网站英文版写一篇有关海洋生物保护的文章，请根据以下要点写一篇短文。篇有关海洋生物保护的文章，请根据以下要点写一篇短文。1.海洋受污染的现状海洋受污染的现状;2.保护海洋的重要性。保护海洋的重要性。注意注意:1.词数词数100左右左右;2.可适当增加细节，以使文章连贯。可适当增加细节，以使文章连贯。The Importance of Protecting Our Oceans As we all know,there are varieties of resources under the sea.However,the

23、 past ten years has witnessed that some creatures have died out.Therefore,marine pollution has been greatly concerned by the whole world.On the one hand,we must make people realize the importance of protecting the ocean.As a matter of fact,to protect the ocean is to protect human beings.On the other hand,the government should take immediate measures to keep the balance of nature.In no way should we abandon protecting the environment.Only by raising peoples awareness of protecting the environment and making great efforts to prevent pollution can the problem be solved.