人教版（2019）选择性必修第二册Unit 1 Science and Scientists Reading and Thinking 导学案（无答案）

选修二 Unit 1 学案 What are the symptoms (症状) of Cholera？ What kinds of epidemics（流行病） have you heard of Fast reading Read the passage quickly and choose the correct key words to summarize each paragraph. Read the whole text quickly and match the main idea Para. 1 Snow began his study by marking on the map. Para. 2 John Snow decided to prove the second theory. Para. 3 Snow's contributions. Para. 4 John Snow desired to destroy cholera. Para. 5 Truth of the infection of cholera. Careful-reading Para.1 Cholera What: _____ in the world, because it causes _____. when:_____ where: what consequence: _____. John Snow who: He rose to become _____ , and even _____ Queen Victoria when she gave birth. What: he had a desire to _____ once and for all. Para. 2 Find a problem & ask a question In those days, What did doctors have to explain how cholera spread Theory one: caused by _____ Theory two: caused by _____ Para. 3 Mark the information on the map of Page2. Read the passage again and tell whether the following statements are true (T) or false (F). 1. Many people died of cholera before its cause was found. ( ) 2. It was a fact that cholera spread in a cloud of gas. ( ) 3. When cholera broke out in 1854, it spread quickly through poor neighbourhoods. ( ) 4. The people who drank beer instead of water did not catch cholera. ( ) 5. The water companies were asked to stop supplying polluted water to people. ( ) Post reading: What questions would you ask to get the following answers 1. Q: What _____ A: Snow thought that cholera was caused by germs in food or water. 2. Q: Why _____ A: Snow had the handle of the pump removed so that it could not be used. 3. Q: How _____ A: The cholera threat was defeated thanks to the work of John Snow. Discuss: What scientific spirits can we learn from Snow Further Thinking: 3. In our daily life, in order not to get infected with the infectious disease, such as cholera, flu,what should we do？ Phrases one of the most feared diseases become frustrated attend to sb lose desire to do sth once and for all in general two contradictory theories an infection from germs in food or water subscribe to the second theory in two particular streets be determined to find out why begin by marking the exact places multiple deaths near the water pump suspect that the water pump is to blame what’s more / moreover have it delivered to her house as a result of the evidence have the handle removed raw waste