Unit 1 Great scientistsTeach ing aims:1. Lear n some new words and expressi ons:Words: attend, cure, expert, handle ,Phrases: be lin ked to, be exposed to , be absorbed in to, be to blame (for sth)2. To examine a new scientific idea.3. Train the students ' r eading abilityMain poin ts: words and phrasesDifficult points: scientific researchTeach ing procedures:Step 1. Warming up1. Greeti ng the stude nts2. Show the Ss pictures of great scie ntistsStep 2. Pre-read ing1. 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 an swers.2. Choose the right an swer to the content of the text.Step 4. Readi ng passage1. Careful Readi ng1) 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 theof it were unknown, he wan ted to face the ____________________ and solve the problem.What caused cholera?2) Para.2 Make a questio n: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 happe ned in 1854?2. How many people died in 10 days?3. What did John Snow do at that time?4) Para.4 Collect resultsAsk stude nts find out the reas ons accordi ng to the map.Which house has the largest nu mber 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 theair.The second suggested that people this disease into their bodies and the disease thebody.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 tha，the 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:New wordPut forwardScientific science scientist SerereBe linked to Vocabulary. TitleEnglish meaning come up withbadbe connected withI. 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 about sb/stha machine that is used to force liq uid, gas or air into or 6. 7. 8. II. Circlethe answer that best matches the meaning of each bold word or phrase..9. expert: Joh n Snow was a famous doctor in London -so expert, in deed, 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 againB ． a medicine or medical treatment13. absorb •…in to/ 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 bad B. 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 personal2. ___________ .But he was willing to help ordinary people3. ___________ cholera. Many people died4. ___________ there was an5. ____________ .He wanted to face the6. ___________ and solve the problem. Two theories caught her attention. The first suggestedthat cholera multiplied in the air. The second suggestedthat people7. ____________ this diseaseinto their bodies and the disease8. ____________ the body. John Snow9. ____________ 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 werenear a water 1 1 . __________ and the spread of the disease was 12. ___________ water. With the evidence ，he was able to 1 3. _________ that polluted water carried the virus. After that ， he suggested the source of all the water supplies 14. .Finally5. pump (para.4) outof sth foresee(para.4) announce (para.6) instruct (para.7) to predict; to know about sth before it happens to make (sth) known publicly give orders ordirections to sb“King Cholera ” was 15. _______________________________________ .。