UNIT 3 Section Ⅰ Reading and Thinking（Word教参）-【优化指导】2022-2023学年新教材高中英语选择性必修第四册（人教版2019）

单元素养目标 文化、思维、学习能力目标 了解海洋治理面临的挑战，加强海洋保护意识，增强海洋科研的探索精神；根据上下文判断作者的论点和论据，辩证地看待海洋开发；判断说明文和议论文的文体特点；正确理解和提炼图表所蕴含的信息和所支持的论点 语言能力目标 核心单词 tale，extend，negotiate，behold，royal，spice，withdraw，bond，politics，profession，mixture，applaud，manned，migration，meanwhile，exploit，murder，mercy，possession，opponent，log，arrest 重点词块 search for，set sail，centre around，lead to，in a league of one's own，under the command of，in return for，withdraw from，reach out across the sea，for the benefit of，in order to，in hand 单元语法 复习动词不定式 写作能力 写一篇关于海洋探索的议论文 单元话题导入 [品读话题短文] The Arctic，Atlantic，Indian and Pacific are the four oceans we learned about in the geography class.But now we have a new one.On World Oceans Day①，which was on June 8，2021，the US National Geographic Society announced it would recognize the Southern Ocean in Antarctica，bringing the global total to five. Unlike the Arctic，Atlantic，Indian and Pacific Oceans，which are defined by② the continents that bound them，the Southern Ocean is instead characterized by the currents circling Antarctica．According to National Geographic，the Southern Ocean includes most of the waters surrounding Antarctica out to 60 degrees south latitude③. “Surrounded by④ the swift currents，it is the only ocean to touch three other oceans and to completely embrace a continent rather than⑤being embraced by them，” Sylvia Earle，US marine biologist and oceanographer(海洋学家)，told The Daily Mail. “Anyone who has been there will struggle to explain what's so amazing about it，but they'll all agree that the glaciers are bluer，the air colder，the mountains more spectacular and the landscapes more appealing than anywhere else they can go，” Seth Sykora­Bodie，a marine scientist at the National Oceanic and Atmospheric Administration，told National Geographic． Due to⑥ the ecologically unique environment⑦ of the Southern Ocean，it's home to⑧ thousands of rare species.The ocean also has wider ecological effects.National Geographic hopes their revised maps will bring public awareness