人教版-必修五-Unit-1-Great-Scientists-Reading-公开课-教案
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必修五Unit 1 Great scientistsReadingTeaching contents(1) The second period of this unit. This period focuses on the reading passage, which is about JohnSnow and King Cholera.(2)(3) Get the students to learn different reading skills, especially gist reading and comprehendingbeyond lines.Teaching aims(1) To help students learn to describe people(2) To help students learn to read a narration about John Snow(3) To help students better understand “Great scientists”Teaching ProceduresI. Warming upStep I Lead inTalk about scientists.T: Hi, morning, class. Nice to see you on this special day, the day when you become a senior twograder. I am happy to be with you helping you with your English. Today we are to read about acertain scientist. But first let’s 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 thingswork.Scientists can work in different areas of science. Here are some examples: Those that study physics are physicists. Those that study chemistry are chemists. Those that study biology are biologists.Step IIAsk the students to try the quiz and find out who knows the most.T: There are some great scientific achievements that have changed the world. Can you name someof 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 allthese questions.1. Archimedes, Ancient Greek (287-212 BC), a mathematician.2. Charles Darwin, 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.。
必修五Unit 1 Great scientistsReadingTeaching contents(1) The second period of this unit. This period focuses on the reading passage, which is about John Snow and King Cholera.(2)(3) Get the students to learn different reading skills, especially gist reading and comprehending beyond lines.Teaching aims(1) To help students learn to describe people(2) To help students learn to read a narration about John Snow(3) To help students better un derstand “Great scientists”Teaching ProceduresI. Warming upStep I Lead inTalk about scientists.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 helping you with your English. Today we are to read about a certain scientist. But first let’s 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. Here are some examples: Those that study physics are physicists. Those that study chemistry are chemists. Those that study biology are biologists.Step IIAsk the students to try the quiz and find out who knows the most.T: There are some great scientific achievements that have changed the 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 Darwin, 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 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-readingGet the students to discuss the questions on page 1 with their partners. Then ask the students to report their work. 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 bird 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 people’s intestines(肠), causing diarrhea and leg cramps (抽筋).The most common cause of cholera is by 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 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 results→Analyse the results→ Draw a conclusion→ Repeat if necessaryIII. ReadingStep I Pre-readingDo you know John Snow?John Snow is a well-known doctor in the 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.Let’s 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.Who defeats “King Cholera“? (John Snow)What happened in 1854? (Cholera outbreak hit London.)How many people died in 10 days? (500)Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street? (These families had not drunk the water from the Broad Street pump.)(Optional)Skim the passage and find the information to complete the form below.Step III ScanningRead 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 IV Main idea and correct stageRead the passage and put the correct stages into the reading about research into a disease.John Snow Defeats “King Cholera”Step V Group discussionAnswer the questions (Finish exercise 2 on Page 3)1. John Snow believed Idea 2 was right. How did he finally prove it?(John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.)2. Do you think John Snow would have solved this problem without the map?(No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.)3. Cholera is a 19th century disease. What disease do you think is similar to cholera today?(Two diseases, which are similar today, are SARS and AIDS because they are both serious, have an unknown cause and need public health care to solve them.Step VI HomeworkUse the stages for scientific research and write a summary.。
Unit 1 Great scientistsTeaching aims:1. Learn some new words and expressions:Words: attend, cure, expert, handle,Phrases: be linked to, be exposed to , be absorbed into, be to blame (for sth)2. To examine a new scientific idea.3. Train the students’ reading abilityMain points: words and phrasesDifficult points: scientific researchTeaching procedures:Step 1. Warming up1. Greeting the students2. Show the Ss pictures of great scientistsStep 2. Pre-reading1.Read the pictures and title of the book and make a prediction about the content ofthe text.2. Do the exercises on the answer sheet and let Ss analyze the words and finish Part II Step 3 fast reading.1. Ask the Ss to put them in order and get their answers.2. Choose the right answer to the content of the text.Step 4. Reading passage1. Careful Reading1) Para.1 Find a problem.What is the problem?John Snow was an doctor in London who Queen Victoria as her personal . He thought about helping ordinary people to cholera. Though the cause and the of it were unknown, he wanted to face the and solve the problem.What caused cholera?2) Para.2 Make a question:Two theories(ideas):1. Cholera multiplied in the air.2. People absorbed it into their bodies with their meals3) Para.3 Think of a method1. What happened in 1854?2. How many people died in 10 days?3. What did John Snow do at that time?4) Para.4 Collect resultsAsk students find out the reasons according to the map.Which house has the largest number of deaths in this map?A. No. 12B. No.2C. No.38D. No. 295) Para.5 Analyse the results1.What happened to the pump water?2. What did the people do?6) Para.6 Find supporting evidenceWhat ’s the extra evidence?7) Para.7 draw a conclusionThe polluted water caused cholera.To prevent cholera from spreading again, what did John Snow do?①Suggested that the source of all water supplies be examined.②Instructed the water companies not to expose people to the polluted water any more.Step 5 Revision and summary1. review “How did John Snow defeat ‘King Cholera’”Let students revise the procedure of the research.1.Summarize the passage.John Snow-a doctor,_____ Queen Victory as her personal _______.But he was willing to help ordinary people ______ cholera.Many people died _____ there was an _____ .He wanted to face the ______ and solve the problem.Two theories caught her attention.The first suggested that cholera multiplied in the air.The second suggested that people ________ this disease into their bodies and the disease _______ the body.John Snow ________ the second was right but he needed evidence.When another outbreak hit London in 1854,he was ready to begin his .____________ and tried to get information.He found that most of the deaths were near a water __________ and the spread of the disease was ____________ water.With the evidence,he was able to ___________ that polluted water carried the virus.After that,he suggested the source of all the water supplies _____________.Finally “King Cholera”was ____________.Step 6 Write a report:1.The question is whether too much homework is good for us.2. Use the steps to get your conclusion.Step 7. Homework1.Make sentences with the following words and phrases:challenge; announce; instruct; attend; be exposed to; absorb..into; be to blame2.Do exercise 1, 2 and 3 on page.Blackboard Design:TitleNew word English meaningPut forward come up withScientific science scientistSerere badBe linked to be connected with……V ocabulary.I. words and meaning1.cure (para.1) a medical treatment2.victim (para.2) a person who were injured or killed as the result of a disease, etc:3.suspect (para.3) to have an idea that sth is probably true4.enquiry (para.3) the act of asking questions or collecting information aboutsb/sth5.pump (para.4) a machine that is used to force liq uid, gas or air into orout of sth6.foresee (para.4) to predict; to know about sth before it happens7.announce (para.6) to make (sth) known publicly8.instruct (para.7) give orders or directions to sbII. Circle the answer that best matches the meaning of each bold word or phrase..9. expert: John Snow was a famous doctor in London –so expert, indeed, that heattended Queen Victoria as her personal physician. (para.1)A. a person with special knowledge, skill or training in a particular fieldB. done with, having great knowledge or skill10. attend: John Snow was a famous doctor in London – so expert, indeed, that heattended Queen Victoria as her personal physician. (para.1)A. be present atB. take care of (sb); look after11. (be )exposed to: He thought about helping ordinary people exposed to cholera.(para.1)A. to leave sb/sth/oneself uncovered or unprotectedB. to tell the true facts about a person or a situation12. cure : Neither its cause nor its cure was understood.(para.1)A.to make sb healthy again B.a medicine or medical treatment13. absorb … into/ in: People absorbed it into their bodies with their meals. (para.2)A. to interest sb very much so that they pay no attention to anything elseB. to take (sth) in; suck up14. be to blame (for sth): It seemed that the water was to blame for cholera.(para.4)A. to be responsible for sth badB. to think or say that sb/sth is responsible for sth bad15. handle :Remove the handle from the water pump so that it could not be used. (para.5)A. part of a toolB. to deal with, manage or controlIII SummaryJohn Snow-a doctor,1.____________ Queen Victory as her personal 2.____________.But he was willing to help ordinary people 3.____________ cholera. Many people died 4.____________ there was an 5.____________ .He wanted to face the 6.____________ and solve the problem. Two theories caught her attention. The first suggested that cholera multiplied in the air. The second suggested that people 7.____________ this disease into their bodies and the disease 8.____________ the body. John Snow 9.____________ the second was right but he needed evidence. When another outbreak hit London in 1854,he was ready to begin his 10.____________ and tried to get information. He found that most of the deaths were near a water 11.____________ and the spread of the disease was 12.____________ water. With the evidence,he was able to 13.____________ that polluted water carried the virus. After that,he suggested the source of all the water supplies 14.____________.Finally “King Cholera” was 15.____________.。