Unit 5 A Delicate World Understanding Ideas 知识清单-2023-2024学年高中英语外研版（2019）选择性必修第二册

Unit5 A delicate world Delicate 1) easily destroyed or broken= fragile 2) Fine 精致的 Maquarie Island: from chaos to conservation Chaos: 混乱 Conservation 保护（环境） 【sym】protection; preservation 词根V. conserve 节省；保护 conservative 保守的 Para.1 1. Sculpt -sculpture- sculptor 2. Heritage 1) The green grass and bare rock of its landscape contrast dramatically, giving it a wild and natural beauty. 2) Nor would they fail to imagine how its native inhabitants, including..., existed in perfect harmony with their natural habitat for thousands of years. natural habit 自然栖息地 Para.2 1. unknowingly 2. take over 拓展：Take in 吸收；欺骗；理解 Subsequently develop an appetite for… [sym]develop a taste for…; develop an interest in…; 拓展: develop the habit of… Para.3 1. Be introduced to 2. a source of food Loose (不受约束的) on the island, they did what rabbits do best – they multiplied rapidly(迅速繁殖) and began eating the native vegetation(植被) and digging (dig) holes, which caused soil erosion(土壤侵蚀). 在岛上自由自在，它们做了兔子最擅长的事——它们迅速繁殖，开始吃当地的植被，挖洞，这导致了土壤侵蚀。 3. Loose adj./v. 4. Multiply v. → multiple adj. 词缀： multi- 多 eg. Multimedia 5. Dig-dug-dug-digging 6. Erode v. → erosion 7. Explode→ explosion →explosive adj. 8. Provide plentiful food for; plentiful adj. → plenty n. 9. In turn 反过来 10. Be native to 11. Die out v. 拓展：adj. extinct Para.4 1. Official nature reserve 2. Remain out of control 保持失控状态 Experts felt it necessary to come up with a plan to remove all the rabbits from the island. With this goal in mind, a virus was released onto the island. 3. Decrease .... from...to 从...减少到 拓展：词缀de- 相反的 eg. Deforestation 4. In consequence结果 = as a result/consequently 5. Turn one’s attention back to 把注意力转回   Para.5 As the saying goes, “while the cat’s away, the mice will play.” 1. With the departure of 随着……的离开 Departure-depart =leave 拓展departure time 2. It turned out that ... He also saw hundreds of delighted students who had turned out to welcome him. ---The well changed the world. 3. de