Unit 1 Great scientists
Do you remember them? Dr Yuan Longping Stephen Hawking I put forward the theory about black holes. I’m the father of super hybrid rice.
Guessing game Who are they?
Who is he? He is called the greatest scientist in the 20th century. He is famous for the Theory of Relativity. He is … Albert Einstein
Who is he? Thomas Alva Edison He invented electric bulbs. He made more than 1,000 inventions during his life. He is … Thomas Alva Edison Thomas Alva Edison
Who is he? He made the first telescope in the world. His observations show that the earth moves around the sun. He is … Galileo Galilei
Who is she? Marie Curie (Polish) She is a woman scientist. She discovered radium(镭)and polonium(钋). In her life, she won the Nobel Prize twice. She is … Marie Curie (Polish)
Who is he? He helped to defeat “King cholera”? He is … John Snow
John Snow defeats “King cholera” From the Title What is the passage about? Scientific research.
Stages Draw a conclusion Think of a method Collect results Make a question Find a problem Analyse the results Find supporting evidence
Fast-reading Draw a conclusion Para.1 Think of a method Para.2 Collect results Para.3 Make a question Para.4 Para.5 Find a problem Para.6 Analyse the results Para.7 Find supporting evidence
Detailed-reading Para.1: Find a problem Cholera killed a lot of people. (how)
Theory 1 Theory 2 Para.2: Make a question: what caused cholera? Cholera multiplied in the air. A cloud of dangerous gas floated around until it found its victims. Theory 1 People absorbed this disease with their meals. Theory 2
Para.3-4: Think of a method and collect the results A map of Broad Street
Many deaths happened here. The water from the pump was to blame. Pub Many deaths happened here. No death happened here. The water from the pump was to blame.
Para.5-6: Analyse the results and find supporting evidence. Look into the source of the water and two other deaths that are linked to the Broad Street outbreak.
Para.7: Draw a conclusion. The polluted water is to blame.
Retelling What? Why? How? An outbreak of cholera hit London in 1854.Through careful investigation and analysis with the help of a map, John Sown got a conclusion that the water was to blame. As a result, King Cholera was defeated.
Discussion Drink boiled water Wash hands often What should we pay attention to in our daily life in order not to get infected with cholera? Keep away from flies choose fresh sea food Keep the kitchen clean Cook raw food thoroughly Dispose rubbish properly Heat the food left overnight