英语：Unit1《Great_Scientists》课件-Warming_up(新人教版必修5).pptVIP

Unit 1;;;Who is he?;Who is he?;Who is she?;Who is he?;Do you know other famous scientists? What are they famous for?;遗传学 电 浮力定理 镭 进化论 画家 蒸汽机 矿工安全灯 黑洞理论 地动仪 ;1.Which scientist discovered that objects in water are lifted up by a force that helps them float?;2.Who wrote a book explaining how animals and plants developed as the environment changed?;3.Who invented the first steam engine?;4.Who used peas to show how physical characteristics are passed from parents to their children?;5.Who invented the way of giving electricity to everybody in large cities?;The Inventions of Thomas Edison ;6.Who was the painter that studied dead bodies to improve his painting of people? ;7.Who invented a lamp to keep miners safe underground?;Reading ;;infectious diseases : They can be spread to other people. They have an unknown cause. They are difficult to cure. They need public health care to solve them.;Skimming::;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).;Comprehension ;2. Which of the following sentences is NOT true about John Snow? John Snow attended Queen Victoria to ease the birth of her babies. John Snow was so kind that he wanted to help the ordinary people to get rid of cholera. John Snow marked on a map where all the dead people had lived, but it was of no use. John Snow proved that cholera was spread by germs and not in a cloud of gas.;3. John Snow discovered that some houses had had no deaths because____________. people in these houses were strong and healthy. people in these houses didn’t drink beer or water. people in these houses were all famous doctors and knew how to protect themselves. people in these houses were given free beer and hadn’t drunk the polluted water.;4. What made John Snow find the cause of cholera? Kindness, carefulness and good observation. Strong de