2021-2022学年高二下学期新人教版2019选必四Unit 3 Sea explorationUsing Language 2-ppt课件.pptx

1、Express your opinions on sea explorationHave you seen any films about sea exploration?Deep Sea Challenger 3DDeepwater HorizonThe Heart of SeaOcean World 3DHere is the trailer（预告片）of James Camerons Deep-sea Challenge 3D，a documentary film.Should the sea be explored?Read the two texts and answer the q

2、uestions.What is the text type of the two passages?What are the three parts in argumentative essay?Argumentative essay.Argument,evidence,restatement/conclusion/a call for action.An argumentative essay is a persuasive essay in which you will try and convince your readers to accept the argument that y

3、oure making and convince them to switch to your side.Read the two texts below and find the arguments and evidence in them.argument evidenceMore exploration causes more pollution.Mining for resources is damaging.Overfishing is an issue.Deepwater Horizon oil spill；plastic pollutionIt damages the Arcti

4、c.Burning fossil fuels adds to climate change.Whales and dolphins are hunted.Though Banned,some countries still doing it.Read argument evidenceSea exploration is important for our future.Understanding more about the sea will also help us manage its resources better.We need new resources for future d

5、evelopment.Scientific research ships can help address important issues like climate change.New medicines,food resources and energy;Predict events such as earthquakes.Vast amounts of resources may be under the sea and ice.Argument Evidence Evidence Evidence RestatementPoint 1 Point 2Point 3Read the t

6、wo texts again and analyze the structure of them.Evidence Evidence Restatement Point 1 Point 2Point 3Evidence Argument Post-read Look at the two charts below and decide which one supports which text.Text 1Text 2A good persuasive argument will use the most recent data and information from verified（已证

7、实的）sources.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 explore and find out more about our

8、 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 sea drilling for example.3.Are there any other aspects of sea exploration not m

9、entioned 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;studying the ocean causes the creation of new technologies t

10、hat can help us in other areas.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 exploration?How does sea exploration help us to protect the sea?How does sea exploration

11、cause damage to the sea?Is there a good balance between protection and exploitation?Point What point do you want to make?Evidence What facts and examples can you find to support your point?How reliable are the sources?Explanation Explain how the facts support your opinion and show other opinions to

12、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.Useful expressions1 Talk about importanceIt is neccessary/important/vital/essential/crucial that we(should)do sthWe cannot emphasize the im

13、portance of.too much.2 Talk about advantages or disadvantages.is beneficial/is of great benefit to.does us a lot of good.does us much harm if we.While.has many advantages,we should not ignore the problems it brings us.This video may help you better understand sea exploration.Even though the oceans m

14、ake up the majority of the earths surface,only a little has been explored by humans.While some people are opposed of the idea,it is neccesary that we should explore the ocean.First of all,sea exploration is beneficial to our future development.Through ocean exploration,we can discovermore resources,

15、such as new food,medicine,vaccines,energy,which is an urgent need due to the rapid growth of global population and the decrease of natural resources on land.Argument Point 1 Evidence All in all,exploration is key to increasing our understanding of the ocean,so we can more effectively manage,conserve

16、,regulate,and use ocean resources that are vital to our economy and to all of our lives.Whats more,information from ocean exploration can help us understand how we are affecting and being affected by changes in Earths environment.For instance,it helps us know about changes in weather and climate.Insights from ocean exploration can also help us better understand and respond to earthquakes,tsunamis,and other hazards.Point 2Evidence restatement Surf online to know about sea exploration and improve your writing.