人教必修五高中英语unit 1 Great Scientists课件.ppt
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1、Ningbo No 2 Middle school Caoyaping,Unit 1 Module 5,Great Scientists,Teaching aim:,1.Help students understand how science has become so important in our life by examining some key scientific findings and famous scientists. At the end of the unit studnets will understand that there is more to science
2、 than chemistry, physics, biology and so on. 2.Help students understand that experiment must follow a particular procedure so that other scientists can check the findings by doing the experiment the same way and getting the same results.This is the safeguard for the accuracy of scentific results.,Te
3、aching Arrangement:,Period 1: Warming up (P1); Listening (P41); Project (P47) Period 2: Pre-reading , Reading and comprehending (P1-3) Period 3: Language points Period 4: Using language -listening and speaking;Reading and writing(P6-8) Period 5: Language points and Grammar Period 6: Listening and Re
4、ading (P44-46) Period 7: Writing (P8 or P47),In the 18th and 19th centuries scientists all over the world made many important discoveries. Name some famous scientists. What are they famous for? Play a game called “Who Am I?”,Group Discussion,The First period,Yuan Longping- Father of Hybrid Rice,Who
5、said ? “I saw rice plants as tall as Chinese sorghum,” he said of a dream he once had, “each ear of rice as big as a broom and each grain of rice as huge as a peanut.“,张衡(78 AD - 139 AD), earliest astronomer in China Later Han Dynasty,seismograph and the Armillary Sphere (浑天仪) so as to observe the u
6、niverse and predict earthquake,Stephen Hawking,People used to think that a star going near a “black hole” would be pull into it forever. He has shown that black holes may also push stars out into space.,Black holes,Marie Curie,Albert Einstein,Theory of Relativity,Thomas Edison,The Inventions of Thom
7、as Edison,Phonograph 留声机,Lightbulb,Motion Pictures,He invented the way of giving electricity to everybody in large cities,Isaac Newton, (16421727),Universal gravitation,Mona Lisa,Last Supper,(1452-1519) Italian artist,Leonardo da Vinci,Charles Darwin (1808-1882),Wrote a book explaining how animals a
8、nd plants developed as the environment changed,(1663-1729) British, improved the first steam pump and turned it into a steam engine for taking water out of mines in 1712.,Thomas Newcomen,Gregor Mendel (1822-1884),Use peas to show how physical characteristics are passed from parents to their children
9、,Sir Humphry Davy (1778-1829)British Scientist.,Miniature Miners Safety Lamp,Pair Work:,A-a reporter B-one of the ten scientists Use the following questions to help you: Whats your nationality? (Im from) What are you interested in? What conclusion have you drawn? What are you proud of? What leads to
10、 your success? (My cautiousness/ creativeness/ determinationleads to),Carl Linnaeus (1707-1778) Swedish,He is often called the Father of Taxonomy(分类学). He succeeded in classifying the plants and animals into a system they worked.,Before-listening,1. Which plant and animal do you like best?Can you cl
11、assify them into a system ?,2. Ask students how they can find out the name of a flower.,Go to the teacher Go to a natural museum and speak to a specialist. Look it up in a flower book ,While-listening Choose which of the following statements most closely describes what this listening passage is abou
12、t . Explain why the others are wrong. A. This is about a man who wants to name a flower. B. This is about a man who finds a flower and wants to own it. C. This is about a man who finds a flower and wants to know if it is a new species of flower.,2. Listen to the tape again and try to complete the fo
13、llowing passage. To find the name of the unknown flower first you should ask your _ teacher to help you. He /She will look in a special _ written by Carl Linnaeus. He lived in _ from _to _. He was very important because he solved a _ problem for biology.,biology,1778,1707,Sweden,book,serious,3. List
14、en to it once more and answer the following questions:,If Robert Briggs finds the flower in the book, what does that mean? How would he know if his lily is a new species? Why do plants all have two names? What was the serious problem for biology that Linnaeus solved?,4. Make a phone call according t
15、o the following situation Imagine you are going to meet a specialist about a newly-found flower. Your partner will be the assistant for the flower specialist. You both need a description of the other so you can recognize each other when you meet.Now ring the assistant to sort out the necessary infor
16、mation.,Pair work (Using the following sentences) How will I recognize you? What special features do you have? What will you wear? How will I know you? What do you look like? You can recognize me because Im tall/short, fat/thin, young/old with Mylooks a bit like I have large /small ,brown/green eyes
17、 with,Use the library or the internet to find out about important scientists in medicine, physics, chemistry,biology, astronomy or mathematics. Prepare a talk on your chosen scientists. Remember to include some information about their life, their achievements and why they are considered important in
18、 science history.,Homework:,Who is he? What is he famous for?,Pre-reading,SARS & Bird Flu,infectious disease,The Second Period,Bacteria of cholera 1.V. Cholerae classical biotype 霍乱弧菌古典生物型 2. V. Cholerae El Tor biotype 霍乱弧菌埃尔托儿生物型,Cause of cholera: Eating food or drinking water that has been contami
19、nated with the bacteria. Symptoms: Cholera infects peoples intestines(肠道), causing diarrhea(腹泻), vomiting(呕吐) and leg cramps(腿部抽筋). A severe case can lead to death. Sometimes cholera can be mild or even without symptoms. Way of treatment: A mixture of sugar and certain salts that the body needs must
20、 be mixed with clean water and drink in large amounts,King Cholera,Broad Street in 1854,Four outbreaks of cholera in the 1830s and 1840s killed many people in England. In 1854, “the most terrible outbreak of cholera which ever occurred in the kingdom” began.It was so violent and sudden that 127peopl
21、e died in the first three days.,Pre-reading: 1. Do you know how to prove a new idea in scientific research?,2. What order would you put the seven in? draw a conclusion think of a method collect results make up a question find a problem analyze the results find supporting evidence repeat if necessary
22、,Reading: Task1: Skimming 1. number the following events in the order that they happened.,John Snow began to test two theories. An outbreak of cholera hit London in 1854. John Snow marked the deaths on a map. He announced that the water carried the disease. John Snow invenstigated two streets where
23、the outbreak was very severe. King Cholera was defeated. He found that most of the deaths were near a water pump He had the handle removed from the water pump.,Answer: 2,1,4,7,3,8,5,6,Task 2: In groups read different paragraphs and find out relevant happenings in the passage.,Two theories,In 1854,50
24、0 , 10,16, 37, 38 and 40,20 , 21; 8 , 9,7,2,The first suggested thatmultiplied in the air; The second suggestedabsorbed this disease into their bodies with their meals.,Another outbreak hit London.,More than 500people had died in 10 days.,These numbers in Broad Street near the water pump had many of
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