Unit5 默写练习一 Starting out，Understanding ideas（课件PPT）-【步步高】2024-2025学年高二英语选择性必修第二册学习笔记（外研版）

该高中英语课件围绕Unit5“delicate world”主题，系统梳理重点单词（如habitat, chaos）、词形变化（如depart→departure）、核心短语（如fail to do..., take over）及应用练习。通过默写练习连接Starting out、Understanding ideas与Using language模块，搭建从词汇记忆到语言运用的学习支架，帮助学生巩固基础。 其亮点在于分层设计练习，从单词默写到词形转换填空（如“explode→explosion”），再到核心短语语境应用（如用“once and for all”完成句子），结合语言能力培养与思维品质提升。学生在练习中能深化词汇理解与运用，教师可借助结构化内容高效检测教学效果，助力提升课堂效率。

默写练习一 Starting out，Understanding ideas & Using language delicate world Unit5 1. n.栖息地 2. n.胃口，食欲 3. n.大混乱；紊乱 4. n.病毒 5. v.(使)减少，(使)变小 6. v.倒坍；塌下 7. adj.大量的，多的 Ⅰ.默写重点单词 habitat appetite chaos virus decrease collapse substantial 8. n.事件 9. adv.显著地 → adj.戏剧性的；突然的 → n.戏剧 10. adv.后来，随后 → adj.随后的，后来的 11. v.(使)大大增加，(使)倍增 → adj.多种多样的 incident dramatically dramatic drama subsequently subsequent multiply multiple 12. n.离开 → v.离开；出发 13. v.突然增加 → n.爆炸；激增 → adj.易爆炸的；突增的；激增的 14. n.干预，介入 → v.干预 15. n.生态 → adj.生态的 → n.生态学家 departure depart explode explosion explosive intervention intervene ecology ecological ecologist 1.We haven’t seen each other for years ever since the (depart). 2.When the rats heard the (explode)，they escaped in all directions. 3.To keep the balance of the island’s (ecologist)，we need government intervention. Ⅱ.词形变化填空 departure explosion ecology 4.It’s vital for us to take (multiply) measures to make our society prosperous. 5.Subsequently，the number of incidents caused by drunk driving dropped (dramatic). multiple dramatically 1. 未能做…… 2. 接管；控制 3. 依次；反过来 4. 失去控制 5. 结果是；证明是 6.die out _____ 7.develop an appetite for _______________ Ⅲ.默写核心短语 fail to do... take over in turn out of control turn out 灭绝 对……产生兴趣 8.in consequence ___________ 9.once and for all _______________ 10.owe...to... _________________________ 结果，因此 彻底地，最终地 把……归功于……；欠…… 从上面默写核心短语中选择合适的完成下列句子 1.To our surprise，his latest film to be an overnight success. 2.Unless solved ，the problem will one day explode as a bomb. 3.His departure was totally unexpected and ，no plans had been made for his replacement. Ⅳ.选词填空 turned out once and for all in consequence 4.These small animals quickly the island，which destroyed the whole harmonious atmosphere. 5.If we can’t set traps for cats here，the population of birds will decrease and they will some day. took over die out 本课结束 $