高中英语人教版必修5unit1课件(共18张PPT).ppt

1、Unit 1Great scientistsGreat Scientists2品质来自专业信赖源于诚信金太阳新课标资源网 Period 1Warming up and Pre-readingUnit 1 Great ScientistsDo you know the great scientists?1.Who invented the first modern steam engine?James Watt (瓦特)2.Who discovered radium?Madame Curie3.Who is the inventor of electric light bulb(电灯)?Thom

2、as Edison4.Who invented the earliest instrument to tell people where earthquakes happened?Zhang Hengwho put forward a theory about black holes?Stephen Hawking5.Who is the father of super hybrid rice?Yuan Longping6.Do you know who defeated“King Cholera”?John SnowJohn Snow is a well-known doctor in th

3、e 19th century in London and he defeated“King Cholera”.Do you know what kind of disease is cholera?It is a kind of terrible disease caused by drinking dirty water and it caused a lot of deaths in the old times and it was very difficult to defeat.Lets get to know how Dr.John Snow defeated“King Choler

4、a”in 1854 in London in this reading passage:John Snow Defeats“King Cholera”John Snow Defeats“King Cholera”The passage is written as a report of an experiment and there are 7 steps:1.Find a problem:(发现问题)2.Make up a question:(形成研究主题)3.Think of a method:(找出研究方法)4.Collect results:(收集材料)5.Analyse result

5、s:(分析材料)6.Repeat if necessary:(必要时重新分析)7.Draw a conclusion:(得出结论)John Snow Defeats“King Cholera”Read the passage and fill in this form:(in 15 minutes)Steps:What/How?1.Find a problem2.Make up a question3.Think of a method4.collect results5.Analyse results6.Repeat if necessary7.Make a conclusionSteps:

6、What/How?1.Find a problem2.Make up a question3.Think of a method4.collect resultsJohn Snow Defeats“King Cholera”What causes cholera?Which theory is correct?Collect information on those who were ill or died and where they got their waterMark information on a map to find out where people died or did n

7、ot died6.Repeat if necessary7.Make a conclusion5.Analyse resultsAnalyse the water to see if that is the cause of the illnessFind other evidence to make sure the conclusionThe water is to blame.The source of all drinking water should be examined.Read the passage again and finish Ex.1(Page 3).(in 8 mi

8、nutes)John Snow Defeats“King Cholera”cientific ReSportby John SnowThe problemThe causeIdea 1:Idea 2:The methodNobody knew the cause of the serious disease of choleraa strange cloud of gas found its victimspeople absorbed the disease with mealsCollect information from the cholera outbreak to prove wh

9、ich theory was correctThe resultsIdea 1 or 2?Why?The conclusionHe found the cause of cholera was the polluted waterIdea 2.Because the information showed that the dirty water carried choleraHe defeated cholera by examining the water supply and dealing with the polluted water Read the passage again an

10、d 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 f

11、rom 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 defeated.doctor19thcausedefeatbrokemarkedpumpsourceexamineddealing (in 5 minutes)17品质来自专业信赖源于诚信金太阳新课标资源网 Homework1.Learn more about great scientists.2.Review the vocabulary.3.Read the text carefully.18品质来自专业信赖源于诚信金太阳新课标资源网