UNIT4 Section Ⅰ　Starting out & Understanding ideas 　 -【正禾一本通】2023-2024学年新教材高二英语选择性必修第二册同步课堂高效讲义教师用书（外研版2019）

　导学第一步——填一填·夯实基础知识 Ⅰ.重点单词 1．boundary 　　　 n．分界线；边界 2．statistic n．(一项)统计数据 3．tackle v．处理，对付(难题) 4．vital adj.极其重要的 5．clinic n．诊所；门诊部 6．outbreak n．爆发，突然发生 7．miracle n．意外的幸运事；奇迹 8．mankind n．人类 Ⅱ.派生单词 1．assist v．协助，帮助→assistance n．帮助；协助→assistant n．店员；助手；助理 adj.副的；助理的 2．tragic adj.悲惨的，不幸的→tragically adv.悲惨地，不幸地→tragedy n．悲剧；不幸 3．relieve v．给(某人)换班；使减轻；缓解→relief n．换班的人，替换者；(痛苦或忧虑的)减轻或解除；减轻痛苦的事物 4．specialist n．专家→special adj.特殊的；特别的 5．infectious adj.传染性的→infect v．感染；传染→infection n．感染；传染→disinfect vt.为……消毒，给……杀菌 6．devotion n．奉献→devote vt.献身于→devoted adj.献身的；热爱的 7．twin adj.双胞胎的→twins n．双胞胎 Ⅲ.核心短语 1．take chances　　　　 心存侥幸，冒险 2．comrades in arms 战友 3．put one’s life at risk 置某人的生命于危险中 4．talk sb.through sth. 向某人详细解释某事，使某人理解某事 5．in one’s 50s 在某人五十多岁时 6．come to know 发觉；开始了解 7．against all odds 尽管凶多吉少，尽管极其困难 8．be caught up in 陷入……，被卷入…… 9．not to mention 更不用说 10．step into one’s shoes 接替某人的位置 Ⅳ.教材句式 1．距离发现上一个报告病例已经整整一个月了。(“It be＋一段时间＋since...”句型) It’s exactly one month since the last reported case. 2．她说话的时候，我可以听到隔壁桌传过来的谈话声，至少混着三种不同的语言。(hear sth.being done) As she talked, I could hear at least three different languages being spoken at the tables around us. 3．不过，虽然死亡率极高，但是我们决不会放弃任何一个患者，何况我们的努力有时真的会产生奇迹。(强调谓语) But, although the death rate is very high, we will never give up on a patient, and our efforts do sometimes end in miracles． 4．这不是作者第一次与无国界医生组织合作。(It is the first/second time...) It is not the first time the author has worked with MSF. 　导学第二步——读一读·理解课文内容 Fast­reading Skim the text and fill in the blanks. 　　　　　　　　　　　　　　　　 Careful­reading Choose the best answer according to the text. 1．Why did the writer go to Liberia? A．Because Emma，at the end of her posting，should be replaced by him. B．Because his duty was to go there and offer his help. C．Because the tragic scenes on the news made him go there. D．Because there are no borders for doctors. 2．What does the underlined word mean in this sentence “My mission was to