人教新课标必修五Unit1Greatscientists[单元全套课件](共85张PPT)教程.ppt

Unit 1 Great scientists;Unit 1;Warming up;Which person impress you most during the SARS?;What other infectious diseases do you know?;;John Snow defeats “King cholera”;;1.The two theories are : The first suggested that cholera multiplied in the air without reason. The second suggested that people absorbed this disease into their bodies with their meals.;Scientific Report by John Snow;;;;;; Two diseases, which are similar today, are SARS and AIDS because they are both very serious, have an unknown cause and public health care to solve them.; No. The map helped John Snow organise his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.;;;2. Who wrote a book explaining how animals and plants developed as the environment changed?;3.Who invent the first steam engine?;4. Who used peas to show how physical characteristics are passed from parents to their children.;5. Who discovered radium?;6.Who invented the way of giving electricity to everybody in large cities?;7.Who was the painter that studied dead bodies to improve his painting of people?;8. Who invented a lamp to keep miners safe underground?;9. Who invented the earliest instrument to tell people where earthquakes happened?;10.Who put forward a theory about black holes?;Language points for reading I;Unit 1;Read the passage again and fill in the blanks: John Snow was a well-known ____ in London in the ___ century. He wanted to find the ______ of cholera in order to ______ it. In 1854 when a cholera ____ out, he began to gather information. He _____ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the ______ died. So he decided that the polluted water carried cholera. He suggested that the _____ of all water supply be _______ and new