book5unit1reading概要1.ppt

Para.6 Find supporting evidence Reading carefully What ’s the extra evidence? A woman and her daughter who lived far away but drank the water also died. Para.7 draw a conclusion Reading carefully To prevent cholera from spreading again, what did John Snow do? ① Suggested that the source of all water supplies be examined. ② Instructed the water companies not to expose people to the polluted water any more. The polluted water caused cholera. Draw a conclusion Find a problem Make a question Think of a method Collect results Analyse the results Para 1 Para 2 Para 3 Para 4 Para 5 Para 6 Find supporting evidence Para 7 Review 7 steps that John Snow took Unit 1 Great scientists Scientists: 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: What do you know about great scientists? Try this quiz and find out who knows the most. 1. Which scientist discovered that objects in water are lifted up by a force that helps them float? B. Archimedes C. Thomas Edison A. Charles Darwin Archimedes (287-212 BC), an ancient Greek mathematician physicist 2. Who wrote a book explaining how animals and plants developed as the environment changed? Marie Curie C. Charles Darwin B. Gregor Mendel Charles Darwin (1808-1882), British author of The Origin of Species 3. Who invented the first steam engine? Thomas Newcomen C. Thomas Edison B. Archimedes Thomas Newcomen (1663-1729), British, improved the first steam pump and turned it into a steam engine for taking water out of mines in 1712 4. Who used peas to show how physical characteristics are passed from parents