Unit 5 Section Ⅰ Starting out & Understanding ideas—Comprehension（Word教参）-【优化指导】2023-2024学年新教材高中英语选择性必修第一册（外研版2019）

单元素养目标 文化、思维、学习能力目标 了解达尔文著作《物种起源》的写作背景，了解中西方科学家在研究动植物方面的贡献，以及中西方不同的动植物种类，培养热爱科学、热爱大自然以及物种多元的意识；全面地、批判性地探讨单元话题，学会运用创造性思维；科学、客观地认识大自然中的动植物品种 语言能力目标 核心单词 seed，distant，disgrace，sample，suspect，ancestor，generate，characteristic，decline，blame，primitive，detect，root，link，centimetre 重点词块 first choice，of all time，in question，be crowded with，adapt to，a variety of，tiny amounts of，drive ．．．away，be native to，come to exist，as well as，be similar to 单元语法 过去完成时 写作能力 写一篇观察日记 单元话题导入 [品读话题短文] As humans continue to pour greenhouse gases into① the atmosphere，oceans have tempered the effect．The world's seas have absorbed more than 90 percent of the heat from these gases，but it's taking a toll on our oceans: 2021 set a new record② for ocean heating． Rising seas is one of those climate change effects③．Average sea levels have swelled over 8 inches(about 23 cm) since 1880，with about three of those inches gained in the last 25 years．Every year，the sea rises another 0．13 inches(3．2 mm)．New research published on February 15，2022 shows that sea level rise is accelerating and projected to④ rise by a foot by 2050． That translates into⑤ as much sea level rise in the next 30 years as occurred over the last century，according to the National Oceanic and Atmospheric Administration's latest technical data，which update 2017 projections with the most precise estimates yet． Rick Spinrad，the NOAA administrator，called the findings “historic”， and warned that the projected rise will occur regardless，even if carbon emissions⑥ are drastically cut．In the United States，the most vulnerable populations live on⑦ the East and Gulf Coasts，where damaging flooding is predicted to⑧ occur 10 times more often in 2050 than it does today． When sea levels rise as rapidly as they have been，even a small increase can have devastating effects on⑨ coastal habitats farther inland，it can cause destructive erosion，wetland flooding，aquifer and agricultural soil contamination with salt，and lost habitat for fish，birds，