Unit 9 Human Biology Lesson 3 Epidemics Explained 第二课时 课件-2024-2025学年高中英语北师大版（2019）选择性必修第三册

LESSON 3（第二课时） EPIDEMICS EXPLAINED UNIT 9 HUMAN BIOLOGY 1 阅读文章课本P58-59的4-6段： 一.找出并在课本上批注词块的汉意 二.完成学案阅读理解习题 三.分析以下长难句 1. Many people fear it could be the next global epidemic, especially as scientists who have gone into detail studying tissue samples from the bodies of people who died of the 1918 Spanish Flu have proved that bird flu is a modern adaptation of that virus. L23 2.Initially, many people believed that such epidemics no longer posed a threat until very recently when SARS became a cause for concern. L41 自主学习（20分钟） 1. bird flu 2.take ... lives 3. the next global epidemic 4. go into detail studying 5. tissue samples 6. died of the 1918 Spanish Flu 7. a modern adaptation of that virus8. the earliest epidemics on record 9. up to 50% 10. died from the epidemic 11.make + n. + n. 12. the main causes 13. spread rapidly to 14.become known as 15. one visible symptom 15. get through the war 16.as a result of the war 17.is believed to be18. pose a threat 19.become a cause for concern 1.禽流感2.夺去了...的生命 3.下一场全球流行病 4.仔细研究 5.组织样本 6.死于1918年西班牙流感7.那种病毒的现代变异版本8.有记载的最早的流行病 9.多达50% 10.死于这一流行病 11.使...成为...12.主要原因13.迅速传播到 14.被称为15.一个明显的症状15.熬过战争 16.作为战争的结果17.被认为是...18.构成威胁19.成为令人担忧的原因 小组讨论： B C B C 步骤要求：一.阅读理解答案核对并找出依据 二.按照以下步骤分析长难句 1.找出句子的谓语动词 2.找出句子的连词 3.说出连词引导的从句类型 4.整句话翻译 4 1.What do scientists confirm by studying tissue samples from the 1918 Spanish Flu victims? A. Bird flu is less dangerous than the Spanish Flu. B. Bird flu is a modern form of the 1918 Spanish Flu virus. C. The Spanish Flu was caused by bird flu. D. The Spanish Flu has disappeared completely now.B 2.Why is the epidemic that spread to Europe in the 1330s called “The Black Death”? A. It mainly killed people with black hair. B. It spread in areas with black soil. C. Black spots on the body were one of its obvious symptoms. D. It broke out during the night with no light. BCBC √ √ 3.Which factor contributed to the worldwide spread of the 1918 Spanish Flu? A. The cold weather at the end of World War Ⅰ. B. The large number of traveling and moving people due to the war. C. The poor medical conditions in most countries. D. The lack of effective vaccines at that time. 4.Which of the following statements is TRUE according to the passage? A. Bird flu has caused over a thousand deaths since 1997. B. The epidemic around 500-550 CE had no connection with the fall of the Roman Empire. C. The 1918 Spanish Flu killed more people than World War Ⅰ did. D. People have never thought that epidemics could be a threat after the Spanish Flu. √ √ 3．Many people fear it could be the next global epidemic, especially as scientists who have gone into detail studying tissue samples from the bodies of people who died of the 1918 Spanish Flu have proved that bird flu is a modern adaptation of that virus. [句式分析]　此句是____句。Many people fear后是省略了that的____从句；as引导的是____状语从句，译作“______________”；两个who引导的都是____从句，分别修饰scientists和people；proved 之后的that引导____从句。 [自主翻译]　 复合 宾语 时间 当……的时候 定语 宾语 科学家们仔细研究了1918年西班牙流感死亡者尸体的组织样本，证明禽流感是该病毒的现代变异版本，许多人担心它可能会引起下一场全球流行病。 33004 Initially, many people believed that such epidemics no longer posed a threat until very recently when SARS became a cause for concern. adv.起初；开始 构成威胁 不再 最初，人们以为这种大规模流行病不会再对人类构成威胁，直至非典出现，再次让全球陷入担忧。 33004 8 What is the main idea of the sixth paragraph? A. To describe how the Spanish Flu got its name B. To discuss the spread and terrible influence of the 1918 Spanish Flu C. To explain the relationship between World War Ⅰ and SARS D. To prove that epidemics are more severely considered after some events √ 答案 ：B 解析： 选项 A：段落未提及西班牙流感名称的由来，属于无中生有，排除。 选项 B：段落先点明 1918 年西班牙流感的爆发时间，接着说明战争导致人口流动加速疫情传播，最后强调其致死人数之多、危害之重，该选项全面概括了段落核心内容，为正确答案。 选项 C：段落仅分别提到一战与西班牙流感的关联、SARS 重新引发人们对流行病的关注，未论述一战和 SARS 的关系，排除。 选项 D：“流行病在一些事件后被更重视” 只是段落末尾的补充信息，并非核心主旨，排除。 $