Unit 3 Section Ⅰ Reading and Thinking(学案)-【成才之路】2023-2024学年高中新教材英语选择性必修第四册同步学习指导(人教版2019)

UNIT 3　 SEA EXPLORATION 单元核心素养 单元话题导读 　 　 背景介绍 海洋升温和酸化对海洋生物和陆地都有负 面影响,生物多样性的现状也同样令人忧虑。 鉴于目前这样的局面,联合国“海洋科学促进可 持续发展十年”计划即将启动,教科文组织总干 事奥德蕾·阿祖莱(Audrey Azoulay)在 2020 年 世界海洋日致辞,呼吁全世界的人为保护海洋 行动起来。 The oceans occupy most of the Earth􀆳s surface—about 70% —to the point of giving our planet its unmistakable colour. As such, they can tell the state of the Earth􀆳s health: to observe them is to know where we stand. In terms of climate, the warming and acidification of the oceans have harmful consequences for marine life and for land; there is of course the rise in water levels which threatens communities settling along the coasts. There is also a risk that is even more worrying since the oceans are no longer able to perform the climate regulation function that they have long fulfilled. As far as biodiversity ( 生 物 多 样 性) is concerned, the diagnosis is even more alarming. We are well aware of these interacting crises, in particular thanks to the work of the Intergovernmental Oceanographic Commission of UNESCO. We also know where we must act. However, we still have to reflect matters and cooperate widely in order to manage the unavoidable and prevent the uncorrectable. COVID-19 affords us this opportunity to come together and set up ambitious programmes of action. This is true for climate; it is true for biodiversity; it is also true for the oceans, as the United Nations Special Envoy for the Ocean, Peter Thomson, explained:“If there were ever a tide in human affairs that should be taken, this is it. ” It is indeed our responsibility to seize this moment. We must firstly learn more about the depths, which remain largely unknown to us and 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 􀪋 066 　 　 　 still hold many secrets that only we can reveal. Secondly, we must give free rein to imagination and innovation, which we need in order to deal with this worrying situation. This is why we have made i