高中英语 Unit 6 Earth first（第1课时）Starting out Understanding ideas学案（含解析）外研版必修第二册-外研版高一必修第二册英语学案

Unit 6 Earth firstUnit 6Earth first ·Climate changeGlobal warming is causing the temperature of the earth to rise slowly, causing massive global changes to our natural environment.·Rising sea levelGlobal warming is rapidly melting glaciers around the globe, causing a rising sea level and possibly coastal flooding and other weather problems in the future.·Ecosystem changesGlobal warming is changing certain ecosystems throughout due to temperature fluctuations (波动). Animals and plants are being forced to adapt to this, and, as a result, are dying off.·Breakdown of the ozone (臭氧) layerGlobal warming is creating holes in the ozone layer, primarily from human use of products that emit (发出) poisonous chemicals. The ozone layer absorbs UV radiation from the sun. The holes are causing amounts of poisonous chemicals present in our breathing air to increase at a rapid rate. 你知道全球变暖会给人类的生活和环境带来哪些变化吗？[知识点击]1．due to 因为，由于2．adapt to 适应3．die off 相继死去4．at a rapid rate 以极快的速度模块核心素养导航主题语境：人与自我主题群：大自然语篇类型：记叙文文化意识语言能力(1)词汇知识：单词 scare, target, fortunately, extinction, attitude, devote, cruelty, presentation, establish, damage, affect, supply, adopt, reduce, release, infection, permission, majority, amount, remove, urge, contribute, average 的用法(2)语法知识：v.ing和 v.ed 形式作宾语补足语。正确了解自然与人的关系，增强保护生态环境的意识，并从身边的小事做起。第一课时 Starting out & Understanding ideasⅠ.词汇初探1．dive v. 潜水2．target v. 把……作为目标 n. 目标；靶；受批评的对象3．scare v. 恐吓；受惊吓→scared adj. 害怕的(修饰人)→scary adj. 恐怖的；吓人的(修饰物)4．fortune n．机会；运气；大笔的钱→fortunate adj. 幸运的→fortunately adv.幸运地→unfortunately adv.不幸地5．extinct adj. 灭绝的...