1、Unit 1Unit 1 Great Great scientistsscientists 1. What should scientists do to prove a new idea in scientific research? Pre-reading Draw a conclusion Think of a method Collect results Make a question Find a problem Analyse the results Find supporting evidence What order would you put the seven in? Fi
2、nd a problem Make a question Think of a method Collect results Analyse the results Find supporting evidence Draw a conclusion Pre-reading 2. What do you know about infectious diseases? Can you name some of them? SARS H1N1 What can you learn from the title? 人物：人物： 事件：事件： defeats cholera What is the p
3、roblem? The cholera was the most deadly disease of its day. Neither its cause, nor its cure was understood. What caused cholera? Make a question: Which theory to believe in? Cholera multiplied in the air without reason. A cloud of dangerous gas would float around until it found its victims. People a
4、bsorbed it with their meals. Which one do you believe more? What about John Snow? A map of Broad Street What method did he use? Many deaths happened here. No death happened here. It seemed the water from the pump was to blame. What did he do next? Public house (Para 6) What was another supporting ev
5、idence? (Para 5) He looked into the source of the water John Snow was able to announce with certainty that polluted water carried the virus. John Snow was _ well-known doctor in London _ the 19th century. He wanted to find the cause of cholera in order to defeat it. In 1854 when a cholera _(break) o
6、ut, he began to gather information. He marked on a map where all the dead people had lived and he found _ many people _ had drunk the dirty water from the pump died. So he decided that the _(pollute) water carried cholera. He suggested that the source of all water supply _ (examine) and new methods
7、of _(deal) with polluted water be found. _(final), “King Cholera” _(defeat). John Snow was _ well-known doctor in London _ the 19th century. He wanted to find the cause of cholera in order to defeat it. In 1854 when a cholera _(break) out, he began to gather information. a in broke He marked on a ma
8、p where all the dead people had lived and he found _ many people _ had drunk the dirty water from the pump died. So he decided that the _(pollute) water carried cholera. He suggested that the source of all water supply _ (examine) and new methods of _(deal) with polluted water be found. _(final), “K
9、ing Cholera” _(defeat). that who polluted be examined dealing Finally was defeated What should we pay attention to in our daily life in order not to get infected with cholera? Heat the food left overnight Cook raw food thoroughly Wash hands often Keep away from flies choose fresh sea food Keep the kitchen clean Dispose rubbish properly. Drink boiled water 1. Read the passage as fluently as you can. 2. Finish Ex. 1 on Page 3. 3. Preview the new words in the passage.
