新人教版英語必修5unit1greatscientistsreading上學期課件

1、Unit 1 Great ScientistsB. ArchimedesC. Thomas EdisonA. Charles Darwin1.Which scientist said, “give me a place to stand on, and I can move the earth.”?2.Who invented the first steam engine?A. Thomas NewcomenC. Thomas EdisonB. Archimedes3. Who invented the earliest instrument to tell people where eart

2、hquakes happened?A. Charles DarwinC. Watt B. Zhang Heng4.Who put forward a theory about black holes?A. Stephen HawkingC. CopernicusB. Archimedes5. Who did great contribution to defeating the Sars?A. Zhong NanshanC. Qian XueshengB. Stephen Hawkinginfectious diseasecholeraJohn SnowWhen you eat some se

3、afood , unclean food or drink polluted water. You feel(for example)Maybe you have got _.Cholera1. Do you know what this map was used for in 1854?2. Find out the cause of Cholera.John Snow Defeats “King Cholera”2. What is the cause of Cholera?The map helped John Snow test the two theories, and gave a

4、 valuable clue about the cause of the disease.It seemed that the water was to blame.Fast reading:1. What was this map used for in 1854?Part1Part2Part3part4(Para. 1)(Para. 2)(Para. 3-5)(Para. 6)Introduction of John Snow and CholeraIntroduction of two theoriesStudy of the outbreak in 1854Prevention of

5、 Cholera and John Snow defeated King CholeraCareful reading: find the main idea of each part.2. When did Dr. Snow think the disease would be controlled?He knew it would never be controlled until its cause was found.Part 1:1. Why cant they control the disease at the beginning?Because neither its caus

6、e, nor its cure was understood.John Snow Defeats “King Cholera”Part 1: Introduction of John Snow and CholeraPart 2: Two theoriesPart 3: Study of the outbreak in 1854 Find a Problem:Make a question:What is the cause of the cholera?Which is right?Paragraph 3:1. What did John Snow do when another outbr

7、eak hit London in 1854?. He was ready to test the two theories. He began to gather information. He marked on a map where all the dead people had lived.Result : the water was to blame.1 death2 death5 death1,2,30,40: numbers of housesThink a method: mark on a mapCollect and analyze resultsresult1Water

8、 was the cause of the choleraresearchLook into the _of the water for two streetsresult2 He found that the water_suggestionHe told people to_result3He found _in another part of London. suggestionHe suggested that the source of all water supplies _and _be found.sourcecame from the river.remove the han

9、dlefrom the water pump.two other deathsConclusion: polluted water carried the disease. be examinednew methodsHow to prove a new idea? Put them into the right order.Find a problem Make up a question Think of a method Collect results Analyze the results Repeat if necessary Draw a conclusion Draw a con

10、clusion Think of a method Collect results Make up a question Find a problem Analyze the results Repeat if necessaryScientific Report by John SnowThe problemTwo theories Idea 1: Idea 2: people absorbed the disease_.The method The resultsIdea 1 or 2?why?The conclusionNo body knew_. the cause of the se

11、rious disease of cholera _ that attacked victims_from the text cholera attack to test theories. Try to prove which method was correct.He found the cause of cholera was_._. Because the data showed a connection with the water.John Snow was able to _ once its cause was known.Strange cloud in the airwit

12、h their mealsCollect datathe polluted waterdefeat choleraIdea 2 John Snow was a _ doctor 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 m

13、any 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 methods of _ with polluted water be found. Finally, “King Cholera” was _.well-known19thcausebrokemarkedpumpsourceexamineddealingde

14、featedSummary:defeat/controlDiscussion:1).What should you do if youre traveling to a country that has a cholera outbreak according to Snows theory?.Eat cooked food while it is still hot. .Boil water thoroughly(完全) before drinking. .Wash hands with soap and water before preparing food and eating. .Avoid eati