Unit 5 A Delicate World Starting out & Understanding ideas 课件-2024-2025学年高二英语外研版（2019）选择性必修第二册

Unit 5: A Delicate World！ starting out + understanding ideas 1 Look at the satellite images and answer ... Satellite Images of Aral Sea, Central Asia 1. What was happening to this area (the Aral Sea)? 2. What will happen to this area in 10 years? 3. What caused these changes? 1. What was happening to this area (the Aral Sea)? 1) The Aral Sea had been shrinking. (smaller) 2. What will possibly happen to this area in 10 years? 1) The Aral Sea will disappear from the earth. 3. What caused these changes? 1) climate change (hotter) 2) desertification (desert) 3) irrigation (irrigate) 4) ... The Aral Sea The Aral Sea is situated in Central Asia, between Kazakhstan to the north and Uzbekistan to the south. It was once the world’s fourth largest lake, and contained 10 grammes of salt per litre. The rivers flowing into the Aral Sea are the river Syr Darya from the north and the river Amu Darya from the south. In the 1960s, the two rivers were diverted away from the Aral Sea so that people could irrigate the surrounding desert region and focus on cotton production. As a result, the Aral Sea has been decreasing in size, and by 1997, it had shrunk to a tenth of its original size, splitting into four lakes. By 2009, the south - eastern lake had disappeared altogether, and the south - western lake had been reduced to a thin strip, with a salinity level of more than 110 grammes per litre. This shrinking of the Aral Sea became known as “one of the planet’s worst environmental disasters”; the decline of the once-thriving fishing industry brings unemployment and economic hardship to the surrounding region. ecosystem Take notes while watching the video. 1. How to explain the title “Connected Together”? 6 1. What makes up an ecosystem? -- plants, animals, different species, ... 2. What is the key to the health of an ecosystem? -- biodiversity (enough plants and animals) 3. Where does the biggest ecosystem exist? -- water (three fourths of the earth’s surface) 4. What does the title “Connected Together” mean? -- depend on each other (biodiversity) Connected Together understanding ideas: Macquarie Island: Chaos Conservation ◆ Politically, it is part of Tasmania (塔斯马尼亚岛), Australia since 1900. ◆ It became a Tasmanian State Reserve (塔斯马尼亚洲自然保护区) in 1978, and a World Heritage Site in 1997. long and thin ◆ Politically, it is part of Tasmania (塔斯马尼亚岛), Australia since 1900. ◆ It became a Tasmanian State Reserve (塔斯马尼亚洲自然保护区) in 1978, and a World Heritage Site in 1997. long and thin 1. What animals can you see in the picture? 2. Will changes will take place if cats, rats and rabbits are introduced to the island? eagle penguin Eagles look more fierce than rabbits. Only a few eagles can’t cause the extinction of penguins, but too many cats, rats and rabbits can. fast reading --- Macquarie Island: from Chaos to Conservation 1. This passage is made up of _____ parts. 2. What’s the main idea of each part? Part 1 Part 2 Part 3 Part 4 The main idea of each part Para ___ a brief descripton of _____________ Para ___ the ______ in the past Para ___ the process of ____________ Para ___ the author’s opinion achievements chaos conservation 1 2-3 4-5 6 confusing sentence / paragraph 1. The green grass and bare rock of its landscape contrast dramatically, giving it a wild and natural beauty. 2. No visitor would think it surprsing that the island is a UNESCO World Herritage Site. 3. Nor would they fail to imagine how its native inhabitants, including royal penguis, king penguins, and elephant seals, existed in perfect harmony with their natural habitat. 4. This intervention is a long, much delayed ending to a sad story, but we humans owe it to the island to give it a happy ending. 1. The green grass and bare rock of its landscape contrast dramatically, giving it a wild and natural beauty. 1) contrast (n. v. 明显的对比、差异) - The green grass contrasts ___________ with the bare rock. - There is a ________ contrast ________ grass _____ rocks. - His white teeth and black skin contrast dramatically. - His _____ contrasts sharply / dramatically with his promise. dramatically sharply sharp dramatical between and action 2. No visitor would think it surprsing that the island is a UNESCO World Herritage Site. -- Why did visitors think it not surprising for the island to be on the UNESCO World Herritage list? 3. Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in perfect harmony with their natural habitat. 1) He failed _______ (pass) the test. 2) He failed _______ the test. 3) The results _____ him. ( ) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 4) 栖息地: _____________ 栖息于: ____________ 居民 栖息动物: _____________ 5) exist ____ harmony with ... to pass (in) 让某人失望、让人未做到 ... failed habitat (n.) inhabit (v.) inhabitant (participant / assistant) in 4. This intervention is a long, much delayed ending to a sad story, but we humans owe it to the island to give it a happy ending. 1) He owes me five dollars. (v. ) = He owes five dollars ____ me. 2) He owes an apology to me. (他欠我个道歉) He owes me a favor. (他得帮我个忙) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 3) I must owe this success ____ my parents. ( ) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 4) owing to ... = _________________________ 欠钱 亏欠 to to 归因于 归功于 thanks to ... // because of ... 5. The incident made it clear that he rat, mouse, and rabbit problem needed solving once and for all. 1) once and for all (一步到位 一劳永逸) 2) The rat problem needs ______________ (solve). 3) Your hair needs cutting / to be cut. wants requires to be solved solving Unit 5: A Delicate World！ starting out + understanding ideas language points 20 underline useful expressions 1. 一个脆弱的世界 2. 卫星图片 3. 由混乱到保护 4. 狂暴的大海 5. 雕刻成狭长的形状 6. 裸露的岩石风景 7. 对比很明显 8. 想象不到、无法想象 9. 当地栖息的动物 10. 与...相处很和谐 11. 自然栖息地 12. 悲惨的故事 13. 无意识地带来了老鼠 14. 主宰、接管这个小岛 15. 随后 接着 后来 16. 逐渐对...有了食欲 17. 食物来源 18. 快速地成倍增加 19. 当地的植物 20. 挖洞 21. 土壤侵蚀、风化、削弱 22. 爆炸式增长的数量 23. 给...提供大量的食物 24. 灭绝 消失 25. 官方自然保护区 26. 仍未被控制住 27. 想出方案 28. 把兔子从岛上清除掉 29. 释放病毒 30. 因此、结果 31. 正如俗话所说 32. 老鼠的离开 33. 逐渐有了对病毒的免疫 34. 倒塌 崩塌 35. 大量的 36. 事件、事情 37. 一步到位 39. 参加这个项目 40. 处理这个问题 41. 事关从直升飞机上洒毒药 42. 入侵物种 43. 介入、干预 44. 这个故事迟来的结束 45. 亏欠这个岛屿的 46. 没有害虫的岛屿 47. 在恢复的路上 1. 一个脆弱的世界 2. 卫星图片 3. 由混乱到保护 4. 狂暴的大海 5. 雕刻成狭长的形状 a delicate world a satellite image from chaos to conservation a stormy sea sculpt its long and thin shape 6. 裸露的岩石风景 7. 对比很明显 8. 想象不到、无法想象 9. 当地栖息的动物 10. 与...相处很和谐 the bare rock landscape contrast dramatically fail to imagine the native inhabitants exist in (perfect) harmony with ... 11. 自然栖息地 12. 悲惨的故事 13. 无意识地带来了老鼠 14. 主宰、接管这个小岛 15. 随后 接着 后来 natural habitat a tragic story unknowningly bring rats and mice take over the island subsequently 16. 逐渐对...有了食欲 17. 食物来源 18. 快速地成倍增加 19. 当地的植物 20. 挖洞 develop an appetite for sth. a source of food multiply rapidly the native vegetation dig a hole 21. 土壤侵蚀、风化、削弱 22. 爆炸式增长的数量 23. 给...提供大量的食物 24. 灭绝 消失 25. 官方自然保护区 soil erosion exploding population provide plentiful food for sb. die out an official nature reserve 26. 仍未被控制住 27. 想出方案 28. 把兔子从岛上清除掉 29. 释放病毒 30. 因此、结果 remain out of control come up with a plan remove rabbits from the island release virus in consequence 31. 正如俗话所说 32. 老鼠的离开 33. 逐渐有了对病毒的免疫 34. 倒塌 崩塌 35. 大量的 As the saying goes, ... the departure of rats develop an immunity to the virus collapse a substantial number of penguins 36. 事件、事情 37. 一步到位 38. 参加这个项目 49. 处理这个问题 40. 事关从直升飞机上洒毒药 incident once for all participate in the program tackle this problem / issue involve poison being dropped ... 41. 入侵物种 42. 介入、干预 43. 这个故事迟来的结束 44. 亏欠这个岛屿的 45. 没有害虫的岛屿 46. 在恢复的路上 invading species intervention a delayed ending to the story owe it to the island a pest-free island on the road to recovery 1. 一个脆弱的世界 2. 卫星图片 3. 由混乱到保护 4. 狂暴的大海 5. 雕刻成狭长的形状 a delicate world a satellite image from chaos to conservation a stormy sea sculpt its long and thin shape (adj. ≈ fragile 脆弱的 易碎的 ) ( n. delicacy ) (conserve v. 保护 保留) (conservation n. ) 1. 一个脆弱的世界 2. 卫星图片 3. 由混乱到保护 4. 狂暴的大海 5. 雕刻成狭长的形状 a delicate world a satellite image from chaos to conservation a stormy sea sculpt its long and thin shape ( n. chaos; in chaos / mess / disorder ) ( storm -- stormy ) ( sculpt -- sculpture -- sculptor ) 6. 裸露的岩石风景 7. 对比很明显 8. 想象不到、无法想象 9. 当地栖息的动物 10. 与...相处很和谐 the bare rock landscape contrast dramatically fail to imagine the native inhabitants exist in (perfect) harmony with ... dramatic -- dramatically (戏剧般的，巨大、夸张的) dramatic + __________________ increase / decrease improvement / effect 11. 自然栖息地 12. 悲惨的故事 13. 无意识地带来了老鼠 14. 主宰、接管这个小岛 15. 随后 接着 后来 natural habitat a tragic story unknowningly bring rats and mice take over the island subsequently 老鼠：rat; mouse (复数: mice) 帽子：cap; hat 胡须：beard; moustache subsequently (adv.) then shortly (after that) ... 16. 逐渐对...有了食欲 17. 食物来源 18. 快速地成倍增加 19. 当地的植物 20. 挖洞 develop an appetite for sth. a source of food multiply rapidly the native vegetation dig a hole develop a good habit a serious illness appetite (n. 食欲 胃口 ) appetizer (n. ) appetizing (adj. ) 开胃的东西 让人有食欲的 16. 逐渐对...有了食欲 17. 食物来源 18. 快速地成倍增加 19. 当地的植物 20. 挖洞 develop an appetite for sth. a source of food multiply rapidly the native vegetation dig a hole multi- (单词前缀 表“多”) multi-cultural activities multiple (多种多样的) multiply (成倍增加 快速增长) -- Two multiplied by four matches 8. dig -- ____ -- ____ dug dug vegetation; vegetable; vegetarian (植物) (蔬菜) (素食者) 21. 土壤侵蚀、风化、削弱 22. 爆炸式增长的数量 23. 给...提供大量的食物 24. 灭绝 消失 25. 官方自然保护区 soil erosion exploding population provide plentiful food for sb. die out an official nature reserve erosion (n.) -- _______ (v.) erode explode (v.爆炸 猛长) ________ (n.) _________ (adj.爆炸的； n. 炸药) explosion plenty of ... plentiful (adj. = abundant) reserve (n. 保护区) (v. ) explosive 保持、保留； 预定 预留 26. 仍未被控制住 27. 想出方案 28. 把兔子从岛上清除掉 29. 释放病毒 30. 因此、结果 remain out of control come up with a plan remove rabbits from the island release virus in consequence remove ... ( v. ≈ get rid of ...) ________ (n.) removal 26. 仍未被控制住 27. 想出方案 28. 把兔子从岛上清除掉 29. 释放病毒 30. 因此、结果 remain out of control come up with a plan remove rabbits from the island release virus in consequence release (v. ) 释放，发行 ... 26. 仍未被控制住 27. 想出方案 28. 把兔子从岛上清除掉 29. 释放病毒 30. 因此、结果 remain out of control come up with a plan remove rabbits from the island release virus in consequence in consequence = _____________________ = _____________________ as a consequence / result consequently / accordingly (写作单词、短语) 31. 正如俗话所说 32. 老鼠的离开 33. 逐渐有了对病毒的免疫 34. 倒塌 崩塌 35. 大量的 As the saying goes, ... the departure of rats develop an immunity to the virus collapse a substantial number of penguins ________ (v.) -- departure (n.) arrive (v.) -- arrival (n.) immunity (n.) 免疫 _________ (adj.) be immune ____ sth. 对...免疫，不受影响 depart immune to 36. 事件、事情 37. 一步到位 38. 参加这个项目 49. 处理这个问题 40. 事关从直升飞机上洒毒药 incident once for all participate in the program tackle this problem / issue involve poison being dropped ... 41. 入侵物种 42. 介入、干预 43. 这个故事迟来的结束 44. 亏欠这个岛屿的 45. 没有害虫的岛屿 46. 在恢复的路上 invading species intervention a delayed ending to the story owe it to the island a pest-free island on the road to recovery invade (v. 入侵 侵入) _________ (n.) _______ delay = at once a _______ flight (推迟的) delay + ___________ (do) invasion without delayed doing delay / put off / postpone 41. 入侵物种 42. 介入、干预 43. 这个故事迟来的结束 44. 亏欠这个岛屿的; 岛屿因得的 45. 没有害虫的岛屿 46. 在恢复的路上 invading species intervention a delayed ending to the story owe it to the island a pest-free island on the road to recovery owe sth. to sb. / sth. 1) 2) pest (n. ) pestcide (n. ) ------------------------------------- pest-free; fat-free; lead-free duty-free; ... 害虫 害鸟 杀虫剂 亏欠 把 ... 归因、归功于 ... conserve conservation delicate delicacy inhabit inhabitant erode erodion explode explosion explosive invade invasion sculpt sculpture sculptor vegetation vegetarian consequence consequently appetitie appetizer plenty plentiful mouse mice storm stormy remove removal depart departure recover recovery pest pest-free ecosystem biodiversity chaos habitat bare rat owe reserve virus collapse incident tackle intervention grammar in the text 1. No visitor would think it surprising. Nor _____ they fail to imagine how these species existed in harmony. 2. In there ships, they ____________(unknown) brought rats ... 3. Unfortunately, the cats developed an appetite ____ birds. 4. Rabbits were introduced ___ the island ___ a source of food. 5. Loose on the island, they did _____ rabibits do best. 6. The exploding rabbits population provided plentiful food ____ the cats. 7. This ___ turn led to more cats _______ (hunt) the birds. would unknowningly for to as what for in hunting 8. Parakeets, once large ___ number and native ____ the island, died out in 1891. 9. The cats in consequence turned their attention - and their stomach - back ___ the native birds. 10. ___ the saying goes, while the cat is away, the mice will play. 11. ____ the _________ (depart) of cats _____ the island, the mouse population started to increase. 12. We owed ___to the island to give it a happy ending. 13. The incident made it clear that the rat, mouse, and rabbit problem needed ________ (solve) once and for all. in to to As With departure from it solving to be solved Lavf56.40.101 Tencent APD MTS $$