Unit 1 Science and Scientists Reading and Thinking 知识点课件-2023-2024学年高中英语人教版（2019）选择性必修第二册

Language Points Unit 1 Science and scientists John Snow Defeats “King Cholera” Learning aims: 1) To learn translation skills and enable to translate freely and fluently. 2) To analyze long & complex sentences to get familiar the basic structures.. 3) To build up vocabularies and learn to use. Self-learning guidance1 (6’) 1) Translate whole passage by yourself clearly and fluently and thoughtfully. 2) Match the main idea with each paragraph. Para1 Para 2 Para 4 Para 5 John Snow desire to destroy cholera. He decided to prove the second theory was correct. John began his study by marking on the map . Finally，he found out the truth of infection of cholera. John Snow ‘s great contributions . Para 3 Read passage quickly and match the main ideas. Self-learning guidance2 (5’) 1) Mark the clauses and judge their structures and types. 2) mark the phrases as many as possible and to recite. John Snow Defeats “King Cholera” Cholera used to be one of the most feared diseases in the world, until a British doctor, John Snow, showed how it could be overcome. This illness causes severe diarrhoea, dehydration, and even death. In the early 19th century, when an outbreak of cholera hit Europe, millions of people died from the disease. As a young doctor, John Snow became frustrated because no one knew how to prevent or treat cholera. In time, he rose to become a famous doctor, and even attended to Queen Victoria when she gave birth. However, he never lost his desire to destroy cholera once and for all. 宾语从句 Para 1 宾语从句 同位语 “过去常常做...” 时间状语从句 “令人恐惧的” 定语从句 “变得沮丧” 原因状语从句 “随着时间的推移” “升迁” rise-rose-risen “照顾；照料” the desire to do “做...的愿望” 7 John Snow Defeats “King Cholera” In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was that bad air caused the disease. The other was that cholera was caused by an infection from germs in food or water. Snow subscribed to the second theory. It was correct, but he still nee