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.____________.。