课件 Period 1 Reading and Thinking Understand the questioning mind（Unit 1 Science and Scientists）-高中英语选择性必修2（新教材同步课件）

讲师：魏彦勋 Science and Scientists---Reading and Thinking Understand the questioning mind Lead in A Questioning Mind A questioning mind A critical mind Reading Task 1: Skim Reading _____ analyze the results _____ ask a question _____ draw a conclusion _____ collect data _____ find a problem _____ find supporting evidence _____ think of a method P1 In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was that bad air caused the disease. Another 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 needed proof. Consequently, when an outbreak of cholera hit London in 1854, Snow began to investigate. He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. _____ analyze the results _____ ask a question _____ draw a conclusion _____ coll