人教版必修五unit1 Reading(共25张PPT).ppt

Unit 1 Great Scientists Reading Scientists: Pre-reading: Cholera: It begins in the stomach and a severe case can lead to death without immediate treatment. And the victims died very quickly from a loss of liquid after severe vomiting(呕吐) and diarrhoea(腹泻). What’s the main idea of the passage? John Snow was a well-known doctor in London. The cause of Cholera was polluted water. The source of all drinking water should be examined. How John Snow find the cause of the disease and solved it . Number these events in the order that they happened __ John Snow began to test two theories. __ An outbreak of cholera hit London in 1854. __ John Snow marked the deaths on a map. __ He announced that the water carried the disease. __ John Snow investigated two streets where the outbreak was very severe. __ King Cholera was defeated. __ He found that most of the deaths were near a water pump. __ He had the handle removed from the water pump. Thank you! * Alexander Bell electricity Thomas Edison the First telephone Wright Brothers the electric Lamp Madame Curie black holes in Universe Franklin Theory of Gravity Steven Hawking the First Plane Elbert Einstein Radium Isaac Newton the Theory of Relativity Scientists Contributions: Draw a conclusion Think of a method Collect results Make up a question Find a problem Analyse the results Find supporting evidence What order do you put them in? Why? Think of a method Collect results Make up a question Find a problem Analyse the results Draw a conclusion Find supporting evidence What do you know about infectious diseases? a kind of infectious diseases Reading Task 1:Skim Match stages with paragraphs. John Snow Who helped to defeat the disease? Whats the name of the disease? Cholera Draw a conclusion Find a problem Make up a question Think of a method Collect results Analyse the results Para 1 Para 2 Par