Unit 3 Using Language 读写课 ppt课件-(2022新)人教版高中英语选择性必修第四册(1).pptx
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1、人教版(人教版(2019)选择性必修四)选择性必修四Unit 3 Sea ExplorationUsing LanguageExpress your opinions on sea explorationRead the first paragraph of the two texts and answer the questions.2 What are the three parts in argumentative essays?1 What is the text type of the two passages?Paragraph 1 (Text 1)When people talk
2、 of exploring the sea more, they usually mean exploiting it. Sea exploration has caused many problems and will continue to cause more.Paragraph 1 (Text 2)To truly understand our planet, we must explore the oceans which cover most of it. Opponents may be concerned, but sea exploration is important fo
3、r our future. For example, scientific research ships can help address important issues such as climate change. We need to understand what is happening to our planet so that we can take action. Therefore, more research is necessary.Argumentative essayArgument, evidence, restatement / recommendation /
4、 a call to actionText 1When people talk of exploring the sea more, they usually mean exploiting it. Sea exploration has caused many problems and will continue to cause more.More exploration means more pollution. The Deepwater Horizon spilled over 200 million gallons of oil into the sea in 2010. Plas
5、tic pollution is also bad, killing many birds and fish, and has even been found in our tap water.Read the two texts below and find the arguments and evidence in them.Mining for resources is very damaging, especially in the Arctic. Because of climate change, there is less ice now, which means we can
6、look for more fossil fuels further north. But if we burn these, the ice will melt more and this negative cycle will continue. Climate change is warning us that something is very wrong. Overfishing is another problem. Whales and dolphins are also hunted for their meat or for so-called research. Altho
7、ugh this was banned in 1982, some countries are still “murdering” these intelligent creatures without mercy.The sea is home to life, not human beings possessions. It is huge, but it is more sensitive than we think. If we do not protect it, future generations will not forgive us.Arguments1 Exploratio
8、n causes pollution.2 Mining for resources is damaging.3 Overfishing is an issue.l Deepwater Horizon oil spilll Plastic pollution l It hurts the Arctic.l Burning fossil fuels adds to climate change.l W h a l e s a n d dolphins are hunted.l Banned, but some countries still doing it.EvidencesText 2To t
9、ruly understand our planet, we must explore the oceans which cover most of it. Opponents may be concerned, but sea exploration is important for our future. For example, scientific research ships can help address important issues such as climate change. We need to understand what is happening to our
10、planet so that we can take action. Therefore, more research is necessary.Understanding more about the sea will also help us manage its resources better. Logging new species will improve our understanding of life on the earth. It may help us discover new medicines, as well as new sources of food and
11、energy. Accessing the deep ocean may also help us to predict events such as earthquakes.The population of the world is growing and we need new resources for future development. There are probably vast amounts of resources under the sea and ice, not just oil and gas but also valuable minerals.Of cour
12、se, there are still environmental risks. However, these should be balanced with economic needs. Hopefully, as technology improves, we may have more options for managing this balance.Arguments1 Sea exploration is important for our future.2 Understanding more about the sea will also help us manage its
13、 resources better.3 We need new resources for future development.l Scientific research s h i p s c a n h e l p address important issues like climate change.l New medicines, food resources and energy.l Predict events such as earthquakes.l Vast amounts of resources may be under the sea and ice.Evidenc
14、esLook at the two charts below and decide which one supports which text.8045361801020304050607080901970-19791980-19891990-19992000-2009Decline in oil spills1974 1979 1984 1989 1994 1999 2004 2009 2013Text 2Text 1Global trends in the state of world marine fish stocksIn groups, discuss the following q
15、uestions and take notes.1 What is your opinion about sea exploration? Do you agree with one argument more than the other?2 Has your opinion changed after reading the two texts? Why or why not?3 Are there any other aspects of sea exploration not mentioned that you think are important?In groups, discu
16、ss 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 world is always a good
17、 thing.In groups, discuss the following questions and take notes.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.In groups, dis
18、cuss the following questions and take notes.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
19、acidic, and how to fight these problems; Studying the ocean causes the creation of new technologies that 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.lWhat is the
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