导 t把..归咎于；责怪；指责n责备；指责 n.把手；拉手；柄t处理；搬动；操纵（车辆、动 物、工具等) 9. n.联系；纽带 t把.…连接起来；相关联 10. d未煮的；生的；未经处理的；原始的 11. ad.干净的；纯的；纯粹的 12. n.减少；降低；减少量 t&i(使大小、数量 等)减少；减小降低
导航 7. blame vt.把……归咎于;责怪;指责 n.责备;指责 8. handle n.把手;拉手;柄 vt.处理;搬动;操纵(车辆、动 物、工具等) 9. link n.联系;纽带 vt.把……连接起来;相关联 10. raw adj.未煮的;生的;未经处理的;原始的 11. pure adj.干净的;纯的;纯粹的 12. decrease n.减少;降低;减少量 vt.&vi.(使大小、数量 等)减少;减小;降低
导期 词汇拓展 l3.infect vt使感染；传染→ n.感染；传染 14.severe adj,极为恶劣的；十分严重的；严厉的→ d严厉地；严重地→ n.严重；严格；严厉 15.frustrated ad.懊恼的；沮丧的；失意的→ t挫 败（敌人）；阻挠；使懊恼→ n.挫折；沮丧 16.transform vt.使改观；使改变形态 vi改变；转变 n.变化；转变
导航 词汇拓展 13.infect vt.使感染;传染→ infection n.感染;传染 14.severe adj.极为恶劣的;十分严重的;严厉的→ severely adv.严厉地;严重地→ severity n.严重;严格;严厉 15.frustrated adj.懊恼的;沮丧的;失意的→ frustrate vt.挫 败(敌人);阻挠;使懊恼→ frustration n.挫折;沮丧 16.transform vt.使改观;使改变形态 vi.改变;转变 → transformation n.变化;转变
导航 重点短语 17. 最终地；彻底地 18. 同意；赞同 19. 幸亏；由于 20. 因.而死；死于… 21. 总之；总起来说
导航 重点短语 17. once and for all 最终地;彻底地 18. subscribe to 同意;赞同 19. thanks to 幸亏;由于 20. die from/of 因……而死;死于…… 21. in general 总之;总起来说
导航 阅读自测 Step 1 Fast Reading 一、 快速浏览课文，判断正(T)误(F) 1.John Snow knew that cholera was not able to be controlled until its cause was found.(T 2.The second theory suggested that people took cholera into their bodies with their food or water.(T
导航 阅 读 自 测 Step 1 Fast Reading 一、快速浏览课文,判断正(T)误(F) 1.John Snow knew that cholera was not able to be controlled until its cause was found.( ) 2.The second theory suggested that people took cholera into their bodies with their food or water.( ) T T
3.John Snow collected proofs by marking on a map the exact places where all those who died had lived.(T 4.A woman and her daughter had died of cholera before they moved away from Brood Street.(F 5.Cholera has been controlled completely at present in the world.(F
导航 3.John Snow collected proofs by marking on a map the exact places where all those who died had lived.( ) 4.A woman and her daughter had died of cholera before they moved away from Brood Street.( ) 5.Cholera has been controlled completely at present in the world.( ) T F F