必修五unit1greatscientists

1、Unit 1 Great scientistsTeaching aims1. To help students learn to describe people2. To help students learn to read a narration about John Snow3. To help students better understand “Great scientists”4. To help students learn to use some important words and expressions5. To help students identify examp

2、les of “The Past Participle (1) as the Predicative & the attribute”Period 1 Warming up and readingTeaching ProceduresI. Warming up Step I Lead inTalk about scientist.T: Hi, morning, class. Nice to see you on this special day, the day when you become a senior two grader. I am happy to be with you

3、 helping you with your English. Today we are to read about a certain scientist. But first lets define the word “scientist”. What is a scientist?A scientist is a person who works in science, trying to understand how the universe or other things work.Scientists can work in different areas of science.

4、Here are some examples: Those that study physics are physicists. Those that study chemistry are chemists. Those that study biology are biologists.Step II Guessing gameAsk the students to try the quiz and find out who knows the most.T: There are some great scientific achievements that have changed th

5、e world. Can you name some of them? What kind of role do they play in the field of science? Do these achievements have anything in common? Match the inventions with their inventors below before you answer all these questions. 1. Archimedes, Ancient Greek (287-212 BC), a mathematician.2. Charles Darw

6、in, Britain (1808-1882). The name of the book is Origin of Species.3. Thomas Newcomen, British (1663-1729), an inventor of steam engine.4. Gregor Mendel, Czech, a botanist and geneticist.5. Marie Curie, Polish and French, a chemist and physicist.6. Thomas Edison, American, an inventor.7. Leonardo da

7、 Vinci, Italian, an artist.8. Sir Humphry Davy, British, an inventor and chemist.9. Zhang Heng, ancient China, an inventor.10. Stepper Hawking, British, a physicist.II. Pre-readingStep IGet the students to discuss the questions on page 1 with their partners. Then ask the students to report their wor

8、k. Encourage the students to express their different opinions. 1. What do you know about infectious diseases?Infectious diseases can be spread to other people. They have an unknown cause and need public health care to solve them. People may be exposed to infectious disease, so may animals, such as b

9、ird flu，AIDS, SARS are infectious diseases. Infectious diseases are difficult to cure. 2. What do you know about cholera?Cholera is the illness caused by a bacterium called Vibrio cholerae. It infects peoples intestines(肠), causing diarrhea and leg cramps (抽筋).The most common cause of cholera is by

10、someone eating food or drinking water that has been contaminated(污染) with the bacteria. Cholera can be mild(不严重的) or even without immediate symptoms(症状), but a severe case can lead to death without immediately treatment.3. Do you know how to prove a new idea in scientific research?Anybody might come

11、 out with a new idea. But how do we prove it in scientific research? There are seven stages in examining a new idea in scientific research. And they can be put in the following order. What order would you put the seven in? Just guess.Find a problem Make up a question Think of a method Collect result

12、s Analyse the results Draw a conclusion Repeat if necessaryIII. ReadingStep I Pre-reading1. Do you know John Snow?John Snow is a well-known doctor in the 19th century in London and he defeated “King Cholera”.2. Do you know what kind of disease is cholera?It is a kind of terrible disease caused by dr

13、inking 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 Cholera” in 1854 in London in this reading passage: Step II SkimmingRead the passage and answer the questions.1. Who defeats “King Cholera“? (John S

14、now)2. What do the numbers refer to?1854An outbreak of cholera hit London500 10More than 500 people had died in 10 days16, 37 38 ,40 There are many deaths20, 218, 9 There is no death7It is a pub at Cambridge Street where many people work here3. Task 2. The passage mainly tells us that _.A. the cause

15、 of cholera was polluted water B. John Snow was a well-known doctor in LondonC. the source of all drinking water should be examinedD. John Snow did some scientific research and helped to solve “King Cholera”Step III Main idea and correct stageRead the passage and put the correct stages into the read

16、ing about research into a disease.ParagraphStagesGeneral ideas1Find a problem:What cause the cholera?The causes of cholera2Make up a question:Which is right?The correct or possible theory3Think of a method:Test two theoryCollect data on where people were ill and died and where they got their water4C

17、ollect results:Mark the deathPlot information on a map to find out where people died or did not die5Analyze the results:Find the resource of the waterLook into the water to see if that is the cause of the illness6Find supporting evidenceFind other evidences to confirm his conclusion7Draw a conclusio

18、nThe polluted dirty source of drinking water was to blame for the cause of the London choleraStep IV ComprehendingRead the passage and number these events in the order that they happened. 2 John Snow began to test two theories. 1 An outbreak of cholera hit London in 1854. 4 John Snow marked the deaths on a map. 7 He announced that the water carried the disease. 3 John Snow investigated two streets where the outbreak was very severe. 8 King Cholera was defeated. 5 He found that most of the deaths were near a water pump. 6 He had the handle removed from the water pump. Step V