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 U N I T 1 What disease can you think of when you look at these pictures? COVID-19 COVID-19: an infectious disease. It was discovered in the human body in 2019. The virus is generally characterised by fever, dry cough and gradually dyspnea(逐渐出现呼吸困难). The virus was confirmed to be with the phenomenon of human transmission and have latent(潜在的) infection. The disease had no specific treatment at that time, so it broke out in 2020 and swept the globe. Do you know how to prove a new idea in scientific research? How many stages are needed to set out a scientific research? What order would you put them in? ___ analyse the results ___ ask a question ___ draw a conclusion ___ collect data ___ find a problem ___ find supporting evidence ___ think of a method ① ③ ④ ⑤ ⑥ ② ⑦ P2 1 Possible answer In the early 19th century, a similar infectious disease hit Europe. Now, let's read a passage about it to see if the order you decided was correct. Read the title and predict. John Snow Defeats “King Cholera” Who ? How ? What ? Main idea: The text is mainly about ____________ and ______ he defeat ________________ John Snow how King Cholera Read and finish the tasks as quickly as possible. Para. 1 Paras. 2-3 Para. 4 Para. 5 ◆ How did John Snow defeat King Cholera? ◆ What's the truth of King Cholera? ◆ What is King Cholera? Who is John Snow? ◆ What's the results and significance of John Snow's work? Read the passage quickly and match the main idea of each part. Para1 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 and the process. Truth of the infection of cholera Snow's contributions Para 3 Read the passage quickly and get the main idea of each paragraph. Skimming: main idea of each paragraph Para1 Para 2 Para 4 Para 5 Para 3 10 Task1. Read the 1st paragraph quickly and fill in the mind map. Cholera What? It's one of _________