Unit 1 Science and scientists Reading and Thinking课件-2022-2023学年高中英语人教版（2019）选择性必修第二册

UNIT 1 SCIENCE AND SCIENTISTS XB211 课前候背 1.feel frustrated/ ˈfrʌstretɪd/ 感到沮丧 2.the cholera/'kɑlərə/ outbreak 霍乱的爆发 3.through this intervention/ˌɪntɚ'vɛnʃən/ 通过这一干预 4.substantial/səb'stænʃl/ orders 大量订单 a substantial decrease 大幅度减少 5.a severe/sɪ'vɪr/ teacher 一位严厉的教师 6.subscribe/səb'skraɪb/ regularly 定期订购 7.need proof/pruf/ 需要证据 8.a large household 一个大家庭 9.suspect/səˈspekt/ the evidence 怀疑这个证据 10.blame/blem/ him for his mistake 由于错误责备他 11.remove the handle 拆掉手柄 12.pure gold 纯金 13.the use of statistics/stə'tɪstɪks/ 统计数据的使用 To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science. ----- Albert Einstein & Leopold Infeld 提出新的问题，发现新的可能，从新的角度审视已存在的问题，这些需要创造性的想象力，并标志着科学的真正进步。 1.Are you familiar with these situations ? run nucleic acid tests get vaccinated lead-in 2.Besides coronavirus, what other kinds of epidemics流行病have you heard of? Bird-flu禽流感, malaria疟疾, plague,瘟疫，鼠疫, Ebola , Smallpox天花 3.An epidemic just like coronavirus hit Europe in the early 19th century, do you know what it is? Cholera霍乱 4.What are the symptoms 症状 of Cholera？ ①dehydration/ˌdihaɪ'dreʃən/ 缺水 ②severe严重的 vomiting/'vɑmɪt/呕吐 ③diarrhoea/ˌdaɪə'riə/腹泻 Stages in scientific research Draw a conclusion Collect data ②Ask a question Find a problem Analyse the results Find supporting evidence ③Think of a method ⑦Draw a conclusion ④Collect data Ask a question ①Find a problem ⑤Analyse the results ⑥Find supporting evidence Think of a method 6 Read the whole text quickly and match the main ideas. Para. 1 Para. 2 Para. 4 Para. 5 John Snow desired to destroy cholera. John Snow decided to prove the second theory. Snow began his study by marking on the map. Truth of the infection of cholera. Snow's contributions. Para. 3 7 Cholera John Snow It's one of ______________________ in the world, because it causes _______________________________. ____