Unit 3 Using Language 课件-2022-2023学年高中英语人教版（2019）选择性必修第四册

Unit3 reading for writing 1 What are the advantages and disadvantages of sea exploration? discover new species detect energy resources predict potential disasters plastic waste overfishing oil leaking 2 fast reading 1. What’s the type of the essay? What are included in this kind of essay? 2. What is the writer’s attitude towards sea exploration in each essay? Can you find the topic sentences? argumentative essay (argument, evidence, restatement/recommendation/ a call to action) essay1: Sea exploration has caused many problems and will continue to cause more. (opposed) essay2: Sea exploration is important for our future. (supportative) 3 careful reading Read the first essay. Underline the argument and evidence and create a mind map. argument sea exploration caused problems evidence pollution mining overfishing restatement less exploration and more protection main point (para 1) body part (para2-4) conclusion(para 5) How did the evidence prove the points? 4 When 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. Plastic pollution is also bad, killing many birds and fish, and has even been found in our tap water. Mining for resources is very damaging, especially in the Arctic. Because of climate change, there is less ice now, which means we can 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. Although 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 sensiti