Unit 2 Extended Reading 学案- 2022-2023学年高中英语牛津译林版(2020)选修第二册

高三英语 选修二 unit 2 Building the future Extended reading : Global warming：islands in hot water Step 1: Leading in Do you know any natural disasters? Step 2: Read for structure Introduction Para.1 Main body Para.2-3 Para.4-5 Conclusion Para.6 Step 3 Read for details How do you understand the title island in hot water? Para.1 1 Cloze test The Pacific Ocean c_____ almost a third of the Earth. ______ (分散的) across this ocean are thousands of islands. In recent years, the people of these islands have noticed tides _____ (get) higher and storms getting worse. And they wonder—is their world about to change? _____（可悲的是）, the fact is that the islands in the Pacific, especially _____ (低洼的) coral ones, are ___________________________(正在遭受全球变暖的影响). 2 重点短语句子背诵 1. 太平洋几乎覆盖了地球的三分之一。成千上万的岛屿分散在这片海洋上。 2. 近年来，这些岛屿上的人们注意到了潮汐越来越高，风暴越来越严重。 3. 遭受全球变暖的严重影响 Para.2 1 Questions: Why is sea level rising? What are the impacts of sea level rising? 2 Cloze test ___ global temperatures increase, _______ sea levels. A warm planet causes ice sheets and glaciers at the North and South Poles to melt, ______（release）additional water into the oceans. Warm water also __________(占据) more room than cooler water, so as the oceans warm, sea levels_________(进一步上升). Scientists e______ levels worldwide may rise ___ 0.6 to 1.1 metres or more by 2100 if the planet continues to warm. On the Pacific islands, the most obvious _____（迹象）of rising sea levels is _____at high tide, water reaches further inland to __________(流入) houses and over roads. In fact, beaches or even whole islands are disappearing: five of the Solomon Islands __________（已经消失）beneath the waves since 1947! Increasing sea levels also c__________ the islands’ ________(淡水供应). When ___(salt) seawater ________ （渗入）the groundwater wells, the water becomes _____(use) for drinking and _______(灌溉). Besides, growing sea levels ________ (干扰) the islands’ natural reshaping processes. Usually, waves gradually remove sand from