Unit 1 Great Scientists Warming up and Reading(1)

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名称 Unit 1 Great Scientists Warming up and Reading(1)
格式 rar
文件大小 4.2MB
资源类型 教案
版本资源 人教版(新课程标准)
科目 英语
更新时间 2010-07-23 21:18:00

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课件26张PPT。Unit 1Great scientistsDo you know their names? The works of scientists make life much easier and more comfortable. They make great contribution to social development. hard-workingWhat qualities do you think they have in common?modestprudent steadfast devoted wise conscientiousArchimedes He was an ancient Greek mathematician. He found if you put an object into water, the water pushes the object up. Let’s learn about some scientists.He wrote The Origin of Species.
It explained how animals and plants developed as the environment changed.Charles DarwinHe improved the first steam pump built by Thomas Savery and turned it into a steam engine for taking water out of mines.
Later James Watt turned it into the first modern steam engine used on the railways.Thomas Newcomen He used peas to show how physical
characteristics are passed from
parents to their children.Gregory MendelShe discovered radium in 1898. She received two Nobel Prizes, one for physics and one for chemistry.Marie Curie He invented the way of giving
electricity to everybody in large cities.Thomas EdisonLeonardo da Vinci He was a famous artist. He used to study dead people in order to make his paintings as accurate as possible.He developed a safety lamp for miners in 1815. It made working conditions underground very much safer.Sir Humphry DavyHe invented the first seismograph to indicate in the direction of an
earthquakes.Zhang HengHe put forward a theory about black holes.Stephen HarkingTHINKWORK FINDHow do the scientists usually do scientific research?The processFind a problem
Make a question
Think of a method
Collect results
Analyse the results
Find supporting evidence
Draw a conclusionSOLVEWhat infectious diseases do you know about? Things to do to prevent infectious diseases: Wash your hands often, especially during cold and flu season.
Be aware of what you eat, and be careful how you prepare it.
Use antibiotics exactly as prescribed.
Be cautious around all wild and domestic animals that are not familiar to you.
Avoid areas of insect infestation. Cholera is the illness caused by a bacterium called Varian cholera. If it infects people’s intestines(肠胃), it may cause diarrhea, vomiting and leg cramps(腹痛). The most common cause of cholera is by someone eating food or drinking water that has been polluted by the bacteria. What do you know about cholera?Cholera can be mild(不严重的) or even without symptoms(症状), but a severe case can lead to death without immediate treatment.Do you know this person?John Snow ( 1813~ 1858)
a legendary figure in the history of public health, epidemiology(流行病学) and anesthesiology(麻醉学) What’s the main idea of the passage?
John Snow was a well-known doctor in London.
The cause of Cholera was polluted water.
The source of all drinking water should be examined.
How John Snow collected, analyzed data and found the cause of the disease and solved it .Fast readingdUse the seven stages in setting out a new scientific idea to describe each paragraph.Careful readingdraw a conclusionfind a problemmake up a questionthink of a methodcollect resultsanalyse the results find supporting evidencePara 1Para 2Para 3Para 4Para 5Para 6 Para 7 Find a problem
What causes cholera?Make a question
Which theory is correct?Think of a method
Collect data on those who were ill
or died and where they got their
water.Para. 1Para. 2Para. 3Para. 5Analyse the results
Analyse the water to see if that is the
cause of the illness.Para. 6Find supporting evidence
Find other evidence to support the
analysis.Para. 7Draw a conclusion
The water was to blame. The source of
all drinking water should be examined to
make sure it is safe.Para. 4Collect results
Plot information on a map to find out
where people died or did not die.HomeworkLearn more about great scientists.
Review the vocabulary.
Read the text carefully.